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cleanup code for 1.3.

Dalibor Votruba há 11 meses atrás
pai
commit
057760f8c2

+ 480 - 277
UILayoutDefinitionFormat/Samples/platform-config-sample.xml

@@ -1,350 +1,553 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- ENHANCED Platform-specific UI Layout Definition with Data Binding and Accessibility -->
+<!-- Enhanced Platform-specific UI Layout Definition v1.3 -->
 <ui-layout-def xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                xmlns="ui-layout-definition"
                xsi:schemaLocation="ui-layout-definition ui-layout-def.xsd"
-               version="1.2"
-               schema-version="1.2"
+               version="1.3"
+               schema-version="1.3"
                min-version="1.0"
                max-version="2.0"
-               target-platform="winforms"
+               target-platform="avalonia"
                accessibility-compliance="wcag-aa">
   
-  <!-- ENHANCEMENT: Platform-specific pattern includes with version constraints -->
-  <patterns>
-    <!-- Always include basic controls -->
-    <pattern-include src="abstract-controls.xml" important="true" platform="basic" min-version="1.0" max-version="2.0" />
+  <!-- Enhanced validation rules with custom validators -->
+  <validation-rules>
+    <validation-include src="wcag-validation.xml" important="true" min-version="1.3" />
+    <validation-include src="avalonia-validation.xml" important="true" platform="avalonia" />
+    <validation-include src="performance-validation.xml" important="false" min-version="1.3" />
     
-    <!-- Platform-specific control definitions -->
-    <pattern-include src="winform-controls.xml" important="true" platform="winforms" min-version="1.2" />
-    <!-- Avalonia would be optional for WinForms projects -->
-    <pattern-include src="avalonia-controls.xml" important="false" platform="avalonia" />
+    <custom-validator name="PlatformCompatibilityValidator" version="1.0" category="compatibility">
+      <description>Validates platform-specific control usage</description>
+      <implementation>
+        <script language="javascript">
+          function validate(element, context) {
+            const platform = context.targetPlatform;
+            const controlPlatform = element.getAttribute('platform-hint') || 'basic';
+            return platform === controlPlatform || controlPlatform === 'basic';
+          }
+        </script>
+      </implementation>
+    </custom-validator>
     
-    <!-- Custom controls for this project -->
-    <pattern-include src="custom-business-controls.xml" important="false" platform="basic" />
+    <validation-profile name="AvaloniaProductionProfile" target-platform="avalonia" enabled="true">
+      <description>Production validation profile for Avalonia applications</description>
+      <profile-rule rule-name="PlatformCompatibilityValidator" enabled="true" severity="warning" />
+      <profile-rule rule-name="accessibility-compliance" enabled="true" severity="error" />
+      <configuration parallel-execution="true" cache-results="true">
+        <setting key="min-avalonia-version" value="11.0" scope="profile" />
+      </configuration>
+    </validation-profile>
+  </validation-rules>
+  
+  <!-- Platform-specific patterns with version constraints -->
+  <patterns>
+    <!-- Core Avalonia controls -->
+    <pattern-include src="avalonia-controls.xml" important="true" platform="avalonia" min-version="1.3" />
+    <!-- Enhanced accessibility controls -->
+    <pattern-include src="accessibility-controls.xml" important="true" min-version="1.3" />
+    <!-- Performance-optimized controls -->
+    <pattern-include src="performance-controls.xml" important="false" min-version="1.3" />
+    
+    <!-- Platform-specific enhanced control -->
+    <control name="AvaloniaEnhancedDataGrid" type="data" category="avalonia-data" schema-version="1.3">
+      <description>Avalonia-specific data grid with advanced features</description>
+      <constraints>
+        <allowed-parents>Panel,Grid,ScrollViewer</allowed-parents>
+        <allowed-children>columns</allowed-children>
+        <container>true</container>
+        <platform-constraints>
+          <platform-constraint platform="avalonia" min-version="11.0" 
+                              feature-required="data-virtualization" />
+        </platform-constraints>
+        <performance-hints virtualization-supported="true" heavy-rendering="false" 
+                          recommended-max-items="50000" />
+      </constraints>
+      <attributes>
+        <attribute name="items-source" type="binding" category="data" 
+                   description="Collection binding for data source" />
+        <attribute name="virtualization-mode" type="enum" 
+                   values="None,Standard,Recycling" default="Recycling" 
+                   category="performance" platform-specific="avalonia" />
+        <attribute name="theme-variant" type="enum" 
+                   values="Default,Light,Dark,HighContrast" default="Default"
+                   category="appearance" platform-specific="avalonia" />
+      </attributes>
+      <data-binding supports-two-way="true" supports-commands="true" supports-validation="true">
+        <bindable-property name="ItemsSource" type="collection" mode="OneWay" 
+                          dependency-property="true" />
+        <bindable-property name="SelectedItems" type="collection" mode="TwoWay" 
+                          dependency-property="true" />
+        <bindable-property name="CurrentItem" type="object" mode="TwoWay" />
+      </data-binding>
+      <behavior>
+        <event name="selection-changed" async="false" accessibility-event="true" />
+        <event name="cell-edit-ending" async="false" cancelable="true" />
+        <command name="ExportCommand" can-execute-property="HasData" async="true" />
+        <gesture name="double-tap-edit" type="double-tap" platform-specific="avalonia" />
+      </behavior>
+    </control>
   </patterns>
   
-  <!-- Views (platform-agnostic) -->
+  <!-- Enhanced business views -->
   <views>
-    <view-include src="business-views.xml" important="true" min-version="1.0" />
+    <view-include src="business-views.xml" important="true" min-version="1.2" />
+    
+    <!-- Platform-optimized view -->
+    <view name="AvaloniaProductManagementView" type="business-entity" category="core" 
+          schema-version="1.3" platform="avalonia" singleton="false" lazy-loading="true" 
+          cacheable="true" priority="high">
+      <description>Product management optimized for Avalonia UI</description>
+      
+      <metadata>
+        <model-class>Product</model-class>
+        <view-model-class>AvaloniaProductViewModel</view-model-class>
+        <permissions>product.read,product.write</permissions>
+        <author>Platform Team</author>
+        <version>2.1.0</version>
+        <documentation-url>https://docs.company.com/avalonia-product-view</documentation-url>
+        <tags>
+          <tag>avalonia-optimized</tag>
+          <tag>high-performance</tag>
+          <tag>accessible</tag>
+        </tags>
+      </metadata>
+      
+      <!-- Avalonia-specific state management -->
+      <state-management pattern="redux" persistence="local">
+        <state name="initializing" initial="true" data-snapshot="InitState" />
+        <state name="loaded" final="false" data-snapshot="LoadedState" />
+        <state name="editing" final="false" data-snapshot="EditState" />
+        <state name="saving" final="false" data-snapshot="SavingState" />
+        <transition from="initializing" to="loaded" trigger="data-loaded" 
+                    condition="products.length > 0" action="displayProducts" />
+        <transition from="loaded" to="editing" trigger="edit-requested" action="startEdit" />
+        <transition from="editing" to="saving" trigger="save-requested" 
+                    condition="validation.isValid" action="saveProduct" />
+        <transition from="saving" to="loaded" trigger="save-completed" action="refreshView" />
+      </state-management>
+      
+      <!-- Enhanced accessibility for Avalonia -->
+      <accessibility level="aa" tested="true">
+        <compliance standard="wcag" level="aa" verified="true" />
+        <feature name="screen-reader" type="screen-reader" required="true" 
+                 implementation="Avalonia accessibility tree integration" />
+        <feature name="keyboard-navigation" type="keyboard-navigation" required="true" 
+                 implementation="Full tab navigation with focus indicators" />
+        <feature name="high-contrast" type="high-contrast" required="true" 
+                 implementation="Avalonia theme system integration" />
+      </accessibility>
+      
+      <!-- Performance optimization for large datasets -->
+      <performance target-load-time="800" memory-limit="200MB">
+        <metric name="grid-render-time" type="load-time" target="300ms" critical="true" />
+        <metric name="scroll-performance" type="frame-rate" target="60fps" critical="true" />
+        <optimization technique="virtualization" description="UI virtualization for product grid" impact="high" />
+        <optimization technique="lazy-loading" description="Load product details on demand" impact="medium" />
+        <optimization technique="caching" description="Cache frequently accessed products" impact="medium" />
+      </performance>
+      
+      <!-- Enhanced security -->
+      <security level="high" audit-required="true">
+        <permission name="product-read" type="read" required="true" scope="view" />
+        <permission name="product-write" type="write" required="false" scope="data" />
+        <vulnerability-protection type="injection" protection="parameterized-queries" severity="critical" />
+        <data-protection encryption="true" gdpr-compliant="true" />
+      </security>
+      
+      <!-- Comprehensive localization -->
+      <localization default-culture="en-US" rtl-support="true">
+        <supported-culture code="de-DE" name="German" completion="100" verified="true" />
+        <supported-culture code="fr-FR" name="French" completion="95" verified="true" />
+        <supported-culture code="ar-SA" name="Arabic" completion="80" verified="false" />
+        <resource-bundle name="ProductResources" path="Resources/Products" type="resx" />
+      </localization>
+      
+      <!-- Avalonia-specific testing -->
+      <testing coverage-target="90" strategy="integration">
+        <test-scenario name="product-crud" type="functional" priority="high" automated="true">
+          <step action="load-products" expected="grid-populated" />
+          <step action="create-product" expected="edit-dialog-shown" />
+          <step action="save-product" expected="product-saved" />
+        </test-scenario>
+        <test-scenario name="accessibility-compliance" type="accessibility" priority="high" automated="true">
+          <step action="keyboard-navigation" expected="all-controls-accessible" />
+          <step action="screen-reader-test" expected="proper-announcements" />
+        </test-scenario>
+        <automation framework="avalonia-test-framework" selector-strategy="accessibility" />
+      </testing>
+      
+      <dependencies>
+        <service-ref name="ProductService" interface="IProductService" scope="scoped" required="true" />
+        <library-ref name="Avalonia.Controls.DataGrid" version="11.0.0" source="nuget" optional="false" />
+      </dependencies>
+      
+      <data-context>
+        <property name="products" type="ObservableCollection&lt;Product&gt;" scope="view" 
+                  observable="true" validation="NotNull" />
+        <property name="selectedProduct" type="Product" scope="view" nullable="true" observable="true" />
+        <property name="isLoading" type="bool" scope="view" default-value="false" observable="true" />
+        <property name="filterText" type="string" scope="view" default-value="" observable="true" />
+      </data-context>
+      
+      <windows>
+        <window-ref name="ProductListWindow" role="main" default="true" lazy-load="false" 
+                    priority="critical" />
+        <window-ref name="ProductEditDialog" role="editor" default="false" lazy-load="true" 
+                    priority="normal" />
+      </windows>
+      
+      <communication>
+        <publishes>
+          <event name="product-selected" data="product-id" async="false" />
+          <event name="products-filtered" data="filter-criteria" async="true" />
+        </publishes>
+        <subscribes>
+          <event name="product-updated" source="ProductService" handler="refresh-product" 
+                 async="true" debounce="1000" />
+        </subscribes>
+        <real-time>
+          <connection name="product-updates" protocol="signalr" endpoint="/productHub" 
+                      auto-reconnect="true" />
+        </real-time>
+      </communication>
+    </view>
   </views>
   
   <!-- Platform-specific window includes -->
   <window-includes>
-    <window-include src="winforms-windows.xml" important="true" platform="winforms" min-version="1.2" />
-    <window-include src="common-dialogs.xml" important="false" platform="basic" />
+    <window-include src="avalonia-windows.xml" important="true" platform="avalonia" min-version="1.3" />
+    <window-include src="responsive-windows.xml" important="false" min-version="1.3" />
   </window-includes>
   
-  <!-- ENHANCEMENT: Enhanced WinForms-specific main window with data binding and accessibility -->
-  <window name="MainWindow" title="Enhanced WinForms Application" 
-          wireframe="StandardAppLayout" view="MainApplicationView"
-          target-platform="winforms"
-          schema-version="1.2">
+  <!-- Enhanced main window with Avalonia-specific features -->
+  <window name="ProductListWindow" title="Product Management - Avalonia" 
+          view="AvaloniaProductManagementView" target-platform="avalonia" schema-version="1.3">
     
     <attributes>
       <attribute name="width" value="1200" />
       <attribute name="height" value="800" />
-      <attribute name="start-position" value="CenterScreen" />
+      <attribute name="min-width" value="800" />
+      <attribute name="min-height" value="600" />
       <attribute name="window-state" value="Normal" />
+      <attribute name="can-resize" value="true" />
+      <attribute name="system-decorations" value="Full" />
+      <attribute name="extend-client-area-to-decorations-hint" value="false" />
     </attributes>
     
     <view-properties>
       <role>main</role>
       <default>true</default>
-      <data-context-binding>dashboardData</data-context-binding>
+      <data-context-binding>products</data-context-binding>
     </view-properties>
     
-    <!-- ENHANCEMENT: Data Binding Configuration -->
+    <!-- Enhanced data binding for Avalonia -->
     <data-binding>
-      <data-context source="MainApplicationViewModel" type="ViewModels.MainApplicationViewModel" mode="TwoWay" />
-      <view-model class="MainApplicationViewModel" assembly="MyApp.ViewModels" namespace="MyApp.ViewModels" />
+      <data-context source="AvaloniaProductViewModel" type="ViewModels.AvaloniaProductViewModel" mode="TwoWay" />
+      <view-model class="AvaloniaProductViewModel" assembly="ProductManagement.Avalonia" 
+                  namespace="ProductManagement.ViewModels" />
       <binding-properties>
-        <property control="statusLabel" property="text" binding-path="StatusMessage" mode="OneWay" />
-        <property control="dataGrid" property="ItemsSource" binding-path="DataItems" mode="OneWay" />
-        <property control="filterTextBox" property="text" binding-path="FilterText" mode="TwoWay" validation-rule="RequiredValidator" />
+        <property control="productGrid" property="ItemsSource" binding-path="Products" 
+                  mode="OneWay" validation-rule="NotNullValidator" />
+        <property control="searchBox" property="Text" binding-path="FilterText" 
+                  mode="TwoWay" converter="StringTrimConverter" />
+        <property control="loadingIndicator" property="IsVisible" binding-path="IsLoading" 
+                  mode="OneWay" converter="BooleanToVisibilityConverter" />
       </binding-properties>
     </data-binding>
     
-    <!-- ENHANCEMENT: Accessibility Configuration -->
+    <!-- Avalonia-specific accessibility -->
     <accessibility compliance-level="wcag-aa">
-      <screen-reader window-title="Main Application Window" 
-                     description="Primary application interface for data management"
+      <screen-reader window-title="Product Management Application" 
+                     description="Manage products with full accessibility support"
                      landmark-role="main" />
       <keyboard-navigation tab-order-start="1" focus-trap="false" escape-closes="false" />
       <color-contrast high-contrast-support="true" minimum-ratio="4.5" />
     </accessibility>
     
-    <slot-overrides>
-      <slot name="main-content">
-        <!-- ENHANCEMENT: Enhanced Panel with accessibility -->
-        <Panel name="mainPanel" 
-               layout-mode="flex"
-               aria-label="Main application content area"
-               high-contrast-support="true">
+    <!-- Main layout with Avalonia controls -->
+    <DockPanel name="mainContainer">
+      <!-- Header with Avalonia-specific controls -->
+      <Border name="headerBorder" dock-panel-dock="Top" background="LightGray" padding="10">
+        <Grid name="headerGrid">
+          <grid-definitions>
+            <column-definitions>
+              <column-definition width="*" />
+              <column-definition width="Auto" />
+              <column-definition width="Auto" />
+            </column-definitions>
+          </grid-definitions>
           
-          <!-- ENHANCEMENT: Enhanced MenuStrip with accessibility -->
-          <MenuStrip name="mainMenu" 
-                     aria-label="Main application menu"
-                     tab-index="1">
-            <menu-items>
-              <menu-item text="File" aria-label="File menu" shortcut-key="Alt+F">
-                <menu-items>
-                  <menu-item text="New" shortcut-key="Ctrl+N" 
-                             command-binding="NewCommand" 
-                             aria-label="Create new item" />
-                  <menu-item text="Open" shortcut-key="Ctrl+O" 
-                             command-binding="OpenCommand"
-                             aria-label="Open existing item" />
-                  <menu-item text="" separator="true" />
-                  <menu-item text="Exit" 
-                             command-binding="ExitCommand"
-                             aria-label="Exit application" />
-                </menu-items>
-              </menu-item>
-              <menu-item text="Tools" aria-label="Tools menu">
-                <menu-items>
-                  <menu-item text="Options" 
-                             command-binding="OptionsCommand"
-                             aria-label="Application options" />
-                </menu-items>
-              </menu-item>
-            </menu-items>
-          </MenuStrip>
+          <TextBlock name="titleText" grid-column="0" text="Product Management" 
+                     font-size="18" font-weight="Bold" vertical-alignment="Center"
+                     aria-label="Application title" />
           
-          <!-- ENHANCEMENT: Enhanced ToolStrip with data binding -->
-          <ToolStrip name="mainToolbar" 
-                     aria-label="Main toolbar"
-                     tab-index="2">
-            <items>
-              <ToolStripButton name="newButton" 
-                               text="New" 
-                               image="new.png" 
-                               command-binding="NewCommand"
-                               aria-label="Create new item" />
-              <ToolStripButton name="openButton" 
-                               text="Open" 
-                               image="open.png" 
-                               command-binding="OpenCommand"
-                               aria-label="Open existing item" />
-              <ToolStripSeparator />
-              <ToolStripComboBox name="viewCombo" 
-                                 items-source="{Binding ViewOptions}"
-                                 aria-label="Select view mode" />
-            </items>
-          </ToolStrip>
+          <ProgressBar name="loadingIndicator" grid-column="1" width="100" height="4" 
+                       is-indeterminate="true" is-visible="{Binding IsLoading}"
+                       margin="10,0" vertical-alignment="Center"
+                       aria-label="Loading progress" />
+          
+          <StackPanel name="actionButtons" grid-column="2" orientation="horizontal" spacing="5">
+            <Button name="addButton" content="Add Product" 
+                    command="{Binding AddProductCommand}"
+                    aria-label="Add new product" />
+            <Button name="refreshButton" content="Refresh" 
+                    command="{Binding RefreshCommand}"
+                    aria-label="Refresh product list" />
+            <Button name="settingsButton" content="Settings" 
+                    command="{Binding ShowSettingsCommand}"
+                    aria-label="Open application settings" />
+          </StackPanel>
+        </Grid>
+      </Border>
+      
+      <!-- Search and filter panel -->
+      <Border name="filterBorder" dock-panel-dock="Top" background="WhiteSmoke" padding="10">
+        <Grid name="filterGrid">
+          <grid-definitions>
+            <column-definitions>
+              <column-definition width="Auto" />
+              <column-definition width="*" />
+              <column-definition width="Auto" />
+              <column-definition width="Auto" />
+            </column-definitions>
+          </grid-definitions>
           
-          <!-- ENHANCEMENT: Search and filter panel -->
-          <Panel name="filterPanel" 
-                 orientation="horizontal" 
-                 padding="5"
-                 aria-label="Search and filter controls"
-                 tab-index="3">
-            
-            <Label name="filterLabel" 
-                   text="Search:" 
-                   aria-label="Search filter" />
-            
-            <TextBox name="filterTextBox" 
-                     placeholder="Enter search terms..."
-                     binding-path="FilterText"
-                     binding-mode="TwoWay"
-                     validation-rule="StringLengthValidator"
-                     aria-label="Search input field"
-                     aria-description="Enter text to filter the data grid results"
-                     auto-complete="on"
-                     tab-index="4" />
-            
-            <Button name="searchButton" 
-                    text="Search" 
-                    style="primary"
-                    command-binding="SearchCommand"
-                    is-default="true"
-                    aria-label="Execute search"
-                    tab-index="5" />
-          </Panel>
+          <TextBlock name="searchLabel" grid-column="0" text="Search:" 
+                     vertical-alignment="Center" margin="0,0,10,0"
+                     aria-label="Search products" />
           
-          <!-- ENHANCEMENT: Enhanced WinForms DataGridView with comprehensive data binding -->
-          <DataGridView name="dataGrid" 
-                        allowusertoaddrows="true"
-                        allowusertodeleterows="true"
-                        selectionmode="FullRowSelect"
-                        aria-label="Data grid"
-                        aria-description="Table displaying application data with sorting and filtering capabilities"
-                        tab-index="6">
-            
-            <!-- ENHANCEMENT: Enhanced columns with data binding -->
-            <columns>
-              <column name="id" 
-                      headertext="ID" 
-                      datapropertyname="Id"
-                      binding-path="Id"
-                      width="80" 
-                      readonly="true" 
-                      aria-label="Item identifier" />
-              
-              <column name="name" 
-                      headertext="Name" 
-                      datapropertyname="Name"
-                      binding-path="Name"
-                      width="200" 
-                      aria-label="Item name" />
-              
-              <column name="category" 
-                      headertext="Category" 
-                      datapropertyname="Category"
-                      binding-path="Category.Name"
-                      width="150" 
-                      converter="CategoryToStringConverter"
-                      aria-label="Item category" />
-              
-              <column name="created" 
-                      headertext="Created" 
-                      datapropertyname="CreatedDate"
-                      binding-path="CreatedDate"
-                      width="120" 
-                      readonly="true"
-                      aria-label="Creation date" />
-            </columns>
-          </DataGridView>
+          <AutoCompleteBox name="searchBox" grid-column="1" 
+                           placeholder-text="Search products by name, SKU, or category..."
+                           text="{Binding FilterText, Mode=TwoWay}"
+                           items-source="{Binding SearchSuggestions}"
+                           minimum-prefix-length="2" filter-mode="Contains"
+                           aria-label="Product search field"
+                           aria-description="Enter text to search and filter products" />
           
-          <!-- ENHANCEMENT: Enhanced StatusStrip with data binding -->
-          <StatusStrip name="statusBar" 
-                       aria-label="Status information">
-            <items>
-              <ToolStripStatusLabel name="statusLabel" 
-                                    text="{Binding StatusMessage}" 
-                                    binding-path="StatusMessage"
-                                    binding-mode="OneWay"
-                                    aria-live="polite"
-                                    aria-label="Application status" />
-              
-              <ToolStripProgressBar name="progressBar" 
-                                    visible="{Binding IsLoading}"
-                                    value="{Binding LoadingProgress}"
-                                    minimum="0"
-                                    maximum="100"
-                                    aria-label="Loading progress" />
-            </items>
-          </StatusStrip>
-        </Panel>
-      </slot>
-    </slot-overrides>
+          <ComboBox name="categoryFilter" grid-column="2" 
+                    placeholder-text="All Categories"
+                    items-source="{Binding Categories}"
+                    selected-item="{Binding SelectedCategory, Mode=TwoWay}"
+                    display-member-path="Name" margin="10,0,0,0"
+                    aria-label="Filter by category" />
+          
+          <Button name="clearFiltersButton" grid-column="3" content="Clear" 
+                  command="{Binding ClearFiltersCommand}" margin="10,0,0,0"
+                  aria-label="Clear all filters" />
+        </Grid>
+      </Border>
+      
+      <!-- Main data grid with Avalonia-specific features -->
+      <AvaloniaEnhancedDataGrid name="productGrid" 
+                                items-source="{Binding Products}"
+                                selected-item="{Binding SelectedProduct, Mode=TwoWay}"
+                                virtualization-mode="Recycling"
+                                theme-variant="{Binding CurrentTheme}"
+                                can-user-resize-columns="true"
+                                can-user-sort-columns="true"
+                                can-user-reorder-columns="true"
+                                grid-lines-visibility="Horizontal"
+                                selection-mode="Single"
+                                aria-label="Products data grid"
+                                aria-description="List of products with sorting and filtering capabilities">
+        
+        <AvaloniaEnhancedDataGrid.Columns>
+          <DataGridTextColumn header="SKU" binding="{Binding SKU}" width="120" 
+                              is-read-only="true" aria-label="Product SKU" />
+          <DataGridTextColumn header="Name" binding="{Binding Name}" width="200" 
+                              is-read-only="true" aria-label="Product name" />
+          <DataGridTextColumn header="Category" binding="{Binding Category.Name}" width="150" 
+                              is-read-only="true" aria-label="Product category" />
+          <DataGridTextColumn header="Price" binding="{Binding Price}" width="100" 
+                              is-read-only="true" aria-label="Product price">
+            <DataGridTextColumn.ElementStyle>
+              <Style TargetType="TextBlock">
+                <Setter Property="HorizontalAlignment" Value="Right" />
+                <Setter Property="FontWeight" Value="Bold" />
+              </Style>
+            </DataGridTextColumn.ElementStyle>
+          </DataGridTextColumn>
+          <DataGridTextColumn header="Stock" binding="{Binding StockQuantity}" width="80" 
+                              is-read-only="true" aria-label="Stock quantity">
+            <DataGridTextColumn.ElementStyle>
+              <Style TargetType="TextBlock">
+                <Setter Property="HorizontalAlignment" Value="Center" />
+              </Style>
+            </DataGridTextColumn.ElementStyle>
+          </DataGridTextColumn>
+          <DataGridCheckBoxColumn header="Active" binding="{Binding IsActive}" width="60" 
+                                  is-read-only="true" aria-label="Product status" />
+          <DataGridTemplateColumn header="Actions" width="150" aria-label="Product actions">
+            <DataGridTemplateColumn.CellTemplate>
+              <DataTemplate>
+                <StackPanel orientation="horizontal" spacing="5" horizontal-alignment="Center">
+                  <Button content="Edit" command="{Binding $parent[Window].DataContext.EditProductCommand}"
+                          command-parameter="{Binding}" 
+                          classes="compact" aria-label="Edit product" />
+                  <Button content="View" command="{Binding $parent[Window].DataContext.ViewProductCommand}"
+                          command-parameter="{Binding}" 
+                          classes="compact" aria-label="View product details" />
+                  <Button content="Delete" command="{Binding $parent[Window].DataContext.DeleteProductCommand}"
+                          command-parameter="{Binding}" 
+                          classes="compact danger" aria-label="Delete product" />
+                </StackPanel>
+              </DataTemplate>
+            </DataGridTemplateColumn.CellTemplate>
+          </DataGridTemplateColumn>
+        </AvaloniaEnhancedDataGrid.Columns>
+      </AvaloniaEnhancedDataGrid>
+      
+      <!-- Status bar with Avalonia styling -->
+      <Border name="statusBorder" dock-panel-dock="Bottom" background="LightGray" 
+              border-brush="Gray" border-thickness="0,1,0,0" padding="10,5">
+        <Grid name="statusGrid">
+          <grid-definitions>
+            <column-definitions>
+              <column-definition width="*" />
+              <column-definition width="Auto" />
+              <column-definition width="Auto" />
+              <column-definition width="Auto" />
+            </column-definitions>
+          </grid-definitions>
+          
+          <TextBlock name="statusText" grid-column="0" 
+                     text="{Binding StatusMessage}" 
+                     vertical-alignment="Center"
+                     aria-live="polite" aria-label="Status information" />
+          
+          <TextBlock name="recordCount" grid-column="1" 
+                     text="{Binding Products.Count, StringFormat='Products: {0}'}" 
+                     vertical-alignment="Center" margin="10,0"
+                     aria-label="Total product count" />
+          
+          <TextBlock name="selectedCount" grid-column="2" 
+                     text="{Binding SelectedItems.Count, StringFormat='Selected: {0}'}" 
+                     vertical-alignment="Center" margin="10,0"
+                     aria-label="Selected products count" />
+          
+          <TextBlock name="lastUpdated" grid-column="3" 
+                     text="{Binding LastUpdated, StringFormat='Updated: {0:HH:mm:ss}'}" 
+                     vertical-alignment="Center" margin="10,0"
+                     aria-label="Last update time" />
+        </Grid>
+      </Border>
+    </DockPanel>
   </window>
   
-  <!-- ENHANCEMENT: Enhanced Dialog Window Example -->
-  <window name="ItemEditDialog" title="Edit Item" 
-          wireframe="DialogLayout" view="ItemEditView"
-          target-platform="winforms"
-          schema-version="1.2">
+  <!-- Product edit dialog with Avalonia features -->
+  <window name="ProductEditDialog" title="Edit Product" 
+          view="AvaloniaProductManagementView" target-platform="avalonia" schema-version="1.3">
     
     <attributes>
       <attribute name="width" value="500" />
-      <attribute name="height" value="400" />
-      <attribute name="start-position" value="CenterParent" />
-      <attribute name="window-state" value="Normal" />
+      <attribute name="height" value="600" />
+      <attribute name="can-resize" value="true" />
+      <attribute name="show-in-taskbar" value="false" />
+      <attribute name="window-startup-location" value="CenterOwner" />
+      <attribute name="system-decorations" value="Full" />
     </attributes>
     
     <view-properties>
       <role>editor</role>
       <modal>true</modal>
-      <data-context-binding>editItemData</data-context-binding>
-      <parent-window>MainWindow</parent-window>
+      <data-context-binding>selectedProduct</data-context-binding>
+      <parent-window>ProductListWindow</parent-window>
     </view-properties>
     
-    <!-- ENHANCEMENT: Data Binding for Dialog -->
-    <data-binding>
-      <data-context source="ItemEditViewModel" type="ViewModels.ItemEditViewModel" mode="TwoWay" />
-      <view-model class="ItemEditViewModel" assembly="MyApp.ViewModels" namespace="MyApp.ViewModels" />
-      <binding-properties>
-        <property control="nameTextBox" property="text" binding-path="Item.Name" mode="TwoWay" validation-rule="RequiredValidator" />
-        <property control="categoryComboBox" property="selected-value" binding-path="Item.CategoryId" mode="TwoWay" />
-        <property control="okButton" property="enabled" binding-path="CanSave" mode="OneWay" />
-      </binding-properties>
-    </data-binding>
-    
-    <!-- ENHANCEMENT: Dialog Accessibility -->
     <accessibility compliance-level="wcag-aa">
-      <screen-reader window-title="Edit Item Dialog" 
-                     description="Form for editing item properties"
+      <screen-reader window-title="Product Edit Dialog" 
+                     description="Form for editing product information"
                      landmark-role="dialog" />
       <keyboard-navigation tab-order-start="1" focus-trap="true" escape-closes="true" />
     </accessibility>
     
-    <slot-overrides>
-      <slot name="dialog-content">
-        <TableLayoutPanel name="editFormLayout" 
-                         columncount="2" 
-                         rowcount="4"
-                         padding="10"
-                         aria-label="Item edit form">
+    <ScrollViewer name="editFormContainer" vertical-scroll-bar-visibility="Auto">
+      <StackPanel name="editFormPanel" spacing="15" margin="20">
+        <TextBlock text="Product Information" font-size="16" font-weight="Bold"
+                   aria-label="Product information section" />
+        
+        <Grid name="formGrid">
+          <grid-definitions>
+            <column-definitions>
+              <column-definition width="120" />
+              <column-definition width="*" />
+            </column-definitions>
+            <row-definitions>
+              <row-definition height="Auto" />
+              <row-definition height="Auto" />
+              <row-definition height="Auto" />
+              <row-definition height="Auto" />
+              <row-definition height="Auto" />
+              <row-definition height="Auto" />
+              <row-definition height="Auto" />
+            </row-definitions>
+          </grid-definitions>
+          
+          <TextBlock grid-row="0" grid-column="0" text="SKU:" 
+                     vertical-alignment="Center" aria-label="Product SKU" />
+          <TextBox name="skuTextBox" grid-row="0" grid-column="1" 
+                   text="{Binding SKU, Mode=TwoWay}" watermark="Enter SKU..."
+                   aria-label="Product SKU input" />
           
-          <!-- ENHANCEMENT: Enhanced form fields with validation and accessibility -->
-          <Label name="nameLabel" 
-                 text="Name:" 
-                 aria-label="Item name label" />
-          <TextBox name="nameTextBox" 
-                   binding-path="Item.Name"
-                   binding-mode="TwoWay"
-                   validation-rule="RequiredValidator"
-                   max-length="100"
-                   required="true"
-                   aria-label="Item name"
-                   aria-description="Enter the name for this item"
-                   tab-index="1" />
+          <TextBlock grid-row="1" grid-column="0" text="Name:" 
+                     vertical-alignment="Center" margin="0,10,0,0"
+                     aria-label="Product name" />
+          <TextBox name="nameTextBox" grid-row="1" grid-column="1" margin="0,10,0,0"
+                   text="{Binding Name, Mode=TwoWay}" watermark="Enter product name..."
+                   aria-label="Product name input" />
           
-          <Label name="categoryLabel" 
-                 text="Category:" 
-                 aria-label="Item category label" />
-          <ComboBox name="categoryComboBox" 
+          <TextBlock grid-row="2" grid-column="0" text="Category:" 
+                     vertical-alignment="Center" margin="0,10,0,0"
+                     aria-label="Product category" />
+          <ComboBox name="categoryComboBox" grid-row="2" grid-column="1" margin="0,10,0,0"
                     items-source="{Binding Categories}"
-                    display-member-path="Name"
-                    value-member-path="Id"
-                    selected-value="{Binding Item.CategoryId, Mode=TwoWay}"
-                    aria-label="Item category"
-                    aria-description="Select the category for this item"
-                    tab-index="2" />
+                    selected-item="{Binding Category, Mode=TwoWay}"
+                    display-member-path="Name" placeholder-text="Select category..."
+                    aria-label="Product category selection" />
           
-          <Label name="descriptionLabel" 
-                 text="Description:" 
-                 aria-label="Item description label" />
-          <TextBox name="descriptionTextBox" 
-                   multiline="true"
-                   binding-path="Item.Description"
-                   binding-mode="TwoWay"
-                   max-length="500"
-                   height="80"
-                   aria-label="Item description"
-                   aria-description="Enter a detailed description for this item"
-                   tab-index="3" />
-        </TableLayoutPanel>
-      </slot>
-      
-      <slot name="dialog-buttons">
-        <Panel name="buttonPanel" 
-               orientation="horizontal" 
-               alignment="right"
-               padding="10"
-               aria-label="Dialog buttons">
+          <TextBlock grid-row="3" grid-column="0" text="Price:" 
+                     vertical-alignment="Center" margin="0,10,0,0"
+                     aria-label="Product price" />
+          <NumericUpDown name="priceUpDown" grid-row="3" grid-column="1" margin="0,10,0,0"
+                         value="{Binding Price, Mode=TwoWay}" minimum="0" increment="0.01"
+                         format-string="C2" aria-label="Product price input" />
+          
+          <TextBlock grid-row="4" grid-column="0" text="Stock:" 
+                     vertical-alignment="Center" margin="0,10,0,0"
+                     aria-label="Stock quantity" />
+          <NumericUpDown name="stockUpDown" grid-row="4" grid-column="1" margin="0,10,0,0"
+                         value="{Binding StockQuantity, Mode=TwoWay}" minimum="0"
+                         aria-label="Stock quantity input" />
           
-          <Button name="okButton" 
-                  text="OK" 
-                  style="primary"
-                  is-default="true"
-                  command-binding="SaveCommand"
-                  enabled="{Binding CanSave}"
-                  aria-label="Save changes"
-                  tab-index="4" />
+          <TextBlock grid-row="5" grid-column="0" text="Description:" 
+                     vertical-alignment="Top" margin="0,10,0,0"
+                     aria-label="Product description" />
+          <TextBox name="descriptionTextBox" grid-row="5" grid-column="1" margin="0,10,0,0"
+                   text="{Binding Description, Mode=TwoWay}" 
+                   accepts-return="true" text-wrapping="Wrap" height="80"
+                   watermark="Enter product description..."
+                   aria-label="Product description input" />
           
-          <Button name="cancelButton" 
-                  text="Cancel" 
-                  style="secondary"
-                  is-cancel="true"
-                  command-binding="CancelCommand"
-                  aria-label="Cancel without saving"
-                  tab-index="5" />
-        </Panel>
-      </slot>
-    </slot-overrides>
+          <CheckBox name="activeCheckBox" grid-row="6" grid-column="1" margin="0,10,0,0"
+                    content="Active" is-checked="{Binding IsActive, Mode=TwoWay}"
+                    aria-label="Product active status" />
+        </Grid>
+        
+        <!-- Dialog buttons -->
+        <StackPanel name="buttonPanel" orientation="horizontal" 
+                    horizontal-alignment="Right" spacing="10" margin="0,20,0,0">
+          <Button name="saveButton" content="Save" 
+                  command="{Binding SaveProductCommand}"
+                  classes="accent" aria-label="Save product changes" />
+          <Button name="cancelButton" content="Cancel" 
+                  command="{Binding CancelEditCommand}"
+                  aria-label="Cancel without saving" />
+          <Button name="deleteButton" content="Delete" 
+                  command="{Binding DeleteProductCommand}"
+                  classes="danger" aria-label="Delete this product" />
+        </StackPanel>
+      </StackPanel>
+    </ScrollViewer>
   </window>
   
 </ui-layout-def>

+ 152 - 82
UILayoutDefinitionFormat/Samples/sample-minimal.xml

@@ -1,117 +1,187 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Minimal UI Layout Definition Format Sample -->
+<!-- FIXED: Simple UI Layout Definition Example v1.3 -->
 <ui-layout-def xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                xsi:schemaLocation="ui-layout-definition ui-layout-def.xsd"
-               version="1.2">
+               version="1.3"
+               schema-version="1.3"
+               target-platform="basic"
+               accessibility-compliance="wcag-aa">
   
-  <!-- Basic pattern definitions (required) -->
+  <!-- Simple validation rules -->
+  <validation-rules>
+    <custom-validator name="RequiredFieldValidator" version="1.0" category="basic">
+      <description>Validates that required fields have content</description>
+      <implementation>
+        <rule-expression expression="string-length(@text) > 0 or @required != 'true'" language="xpath" />
+      </implementation>
+      <test-case name="required-field-with-content">
+        <input><TextBox text="Hello World" required="true" /></input>
+        <expected-result>pass</expected-result>
+      </test-case>
+      <test-case name="required-field-empty">
+        <input><TextBox text="" required="true" /></input>
+        <expected-result>fail</expected-result>
+        <expected-message>This field is required</expected-message>
+      </test-case>
+    </custom-validator>
+  </validation-rules>
+  
+  <!-- Basic control patterns -->
   <patterns>
-    
-    <!-- Basic container control -->
-    <control name="Panel" type="container" category="basic">
-      <constraints>
-        <allowed-parents>Panel,window</allowed-parents>
-        <allowed-children>any-control</allowed-children>
-        <container>true</container>
-      </constraints>
-      <attributes>
-        <attribute name="width" type="int" default="200" />
-        <attribute name="height" type="int" default="100" />
-        <attribute name="orientation" type="enum" values="horizontal,vertical" default="vertical" />
-      </attributes>
-    </control>
-    
-    <!-- Basic text display -->
+    <!-- Define basic controls used in windows -->
     <control name="Label" type="display" category="basic">
-      <constraints>
-        <allowed-parents>Panel</allowed-parents>
-        <allowed-children>none</allowed-children>
-        <container>false</container>
-      </constraints>
+      <description>Simple text display control</description>
       <attributes>
-        <attribute name="text" type="string" default="" required="true" />
-        <attribute name="font-size" type="int" default="12" />
+        <attribute name="text" type="string" default="" />
+        <attribute name="font" type="font" default="Default" />
+        <attribute name="color" type="color" default="Black" />
       </attributes>
+      <behavior>
+        <event name="click" />
+      </behavior>
     </control>
     
-    <!-- Basic text input -->
     <control name="TextBox" type="input" category="basic">
-      <constraints>
-        <allowed-parents>Panel</allowed-parents>
-        <allowed-children>none</allowed-children>
-        <container>false</container>
-      </constraints>
+      <description>Text input control</description>
       <attributes>
-        <attribute name="value" type="string" default="" />
+        <attribute name="text" type="string" default="" />
         <attribute name="placeholder" type="string" default="" />
+        <attribute name="required" type="bool" default="false" />
+        <attribute name="maxlength" type="int" default="255" />
       </attributes>
+      <behavior>
+        <event name="textchanged" />
+        <event name="focus" />
+        <event name="blur" />
+      </behavior>
+      <validation>
+        <rule name="required-validation" type="required" message="This field is required" severity="error" />
+      </validation>
     </control>
     
-    <!-- Basic button -->
-    <control name="Button" type="action" category="basic">
-      <constraints>
-        <allowed-parents>Panel</allowed-parents>
-        <allowed-children>none</allowed-children>
-        <container>false</container>
-      </constraints>
+    <control name="Button" type="button" category="basic">
+      <description>Clickable button control</description>
       <attributes>
-        <attribute name="text" type="string" default="Button" required="true" />
+        <attribute name="text" type="string" default="Button" />
         <attribute name="enabled" type="bool" default="true" />
       </attributes>
       <behavior>
-        <event name="click" required="true" />
+        <event name="click" />
       </behavior>
     </control>
     
+    <control name="Panel" type="container" category="basic">
+      <description>Container for other controls</description>
+      <attributes>
+        <attribute name="width" type="int" default="200" />
+        <attribute name="height" type="int" default="100" />
+        <attribute name="background" type="color" default="Transparent" />
+      </attributes>
+      <behavior>
+        <event name="resize" />
+      </behavior>
+    </control>
+    
+    <!-- Simple layout structure -->
+    <structure name="SimpleForm" type="layout" category="layout">
+      <description>Basic form layout with label and input pairs</description>
+      <attributes>
+        <attribute name="title" type="string" default="Form" />
+        <attribute name="width" type="int" default="300" />
+        <attribute name="height" type="int" default="200" />
+      </attributes>
+      <template>
+        <Panel name="formContainer" width="{width}" height="{height}" background="White">
+          <Label name="titleLabel" text="{title}" font="Bold,14" />
+          <!-- Content will be inserted here -->
+        </Panel>
+      </template>
+    </structure>
   </patterns>
   
-  <!-- Simple view definition -->
-  <views>
-    <view name="SimpleView" type="utility" category="core">
-      <description>A simple view for demonstration</description>
-      
-      <data-context>
-        <property name="userName" type="string" scope="view" />
-        <property name="isLoggedIn" type="bool" scope="view" />
-      </data-context>
-      
-      <windows>
-        <window-ref name="MainWindow" role="main" default="true" />
-      </windows>
-      
-      <navigation>
-        <action name="show-main" target="MainWindow" />
-      </navigation>
-    </view>
-  </views>
-  
-  <!-- Single window definition -->
-  <window name="MainWindow" title="Simple Application" view="SimpleView">
+  <!-- Simple window definition -->
+  <window name="SimpleContactForm">
     <attributes>
+      <attribute name="title" value="Contact Information" />
       <attribute name="width" value="400" />
       <attribute name="height" value="300" />
+      <attribute name="resizable" value="true" />
     </attributes>
     
-    <view-properties>
-      <role>main</role>
-      <default>true</default>
-      <data-context-binding>userName</data-context-binding>
-    </view-properties>
-    
-    <!-- Simple window content -->
-    <Panel name="mainPanel" width="400" height="300">
-      <Label name="titleLabel" text="Welcome to Simple App" font-size="16" />
-      
-      <Panel name="inputPanel" orientation="horizontal">
-        <Label name="nameLabel" text="Your Name:" />
-        <TextBox name="nameInput" placeholder="Enter your name..." />
+    <template>
+      <Panel name="mainPanel" width="380" height="260" background="LightGray">
+        
+        <!-- Header -->
+        <Label name="headerLabel" text="Please enter your contact information" 
+               font="Bold,12" color="DarkBlue" />
+        
+        <!-- Name field -->
+        <Label name="nameLabel" text="Full Name:" />
+        <TextBox name="nameTextBox" placeholder="Enter your full name" 
+                 required="true" maxlength="100" />
+        
+        <!-- Email field -->
+        <Label name="emailLabel" text="Email Address:" />
+        <TextBox name="emailTextBox" placeholder="Enter your email" 
+                 required="true" maxlength="255" />
+        
+        <!-- Phone field -->
+        <Label name="phoneLabel" text="Phone Number:" />
+        <TextBox name="phoneTextBox" placeholder="Enter your phone number" 
+                 maxlength="20" />
+        
+        <!-- Buttons -->
+        <Panel name="buttonPanel" width="350" height="40" background="Transparent">
+          <Button name="submitButton" text="Submit" enabled="true" />
+          <Button name="cancelButton" text="Cancel" enabled="true" />
+          <Button name="clearButton" text="Clear" enabled="true" />
+        </Panel>
       </Panel>
-      
-      <Panel name="buttonPanel" orientation="horizontal">
-        <Button name="submitButton" text="Submit" />
-        <Button name="clearButton" text="Clear" />
+    </template>
+  </window>
+  
+  <!-- Inherited window example -->
+  <window name="BusinessContactForm" inherits="SimpleContactForm">
+    <attributes>
+      <attribute name="title" value="Business Contact Information" override="true" />
+      <attribute name="height" value="350" override="true" />
+    </attributes>
+    
+    <template>
+      <Panel name="mainPanel" width="380" height="310" background="LightGray">
+        
+        <!-- Header -->
+        <Label name="headerLabel" text="Please enter your business contact information" 
+               font="Bold,12" color="DarkBlue" />
+        
+        <!-- Name field -->
+        <Label name="nameLabel" text="Full Name:" />
+        <TextBox name="nameTextBox" placeholder="Enter your full name" 
+                 required="true" maxlength="100" />
+        
+        <!-- Company field (new) -->
+        <Label name="companyLabel" text="Company:" />
+        <TextBox name="companyTextBox" placeholder="Enter your company name" 
+                 required="true" maxlength="100" />
+        
+        <!-- Email field -->
+        <Label name="emailLabel" text="Business Email:" />
+        <TextBox name="emailTextBox" placeholder="Enter your business email" 
+                 required="true" maxlength="255" />
+        
+        <!-- Phone field -->
+        <Label name="phoneLabel" text="Business Phone:" />
+        <TextBox name="phoneTextBox" placeholder="Enter your business phone" 
+                 required="true" maxlength="20" />
+        
+        <!-- Buttons -->
+        <Panel name="buttonPanel" width="350" height="40" background="Transparent">
+          <Button name="submitButton" text="Submit" enabled="true" />
+          <Button name="cancelButton" text="Cancel" enabled="true" />
+          <Button name="clearButton" text="Clear" enabled="true" />
+        </Panel>
       </Panel>
-    </Panel>
+    </template>
   </window>
   
 </ui-layout-def>

+ 924 - 957
UILayoutDefinitionFormat/Samples/sample.xml

@@ -1,1071 +1,1038 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- UI Layout Definition Format with Control Constraints and Views (v1.1) -->
+<!-- Enhanced UI Layout Definition Format Sample v1.3 -->
 <ui-layout-def xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                xsi:schemaLocation="ui-layout-definition ui-layout-def.xsd"
-               version="1.2">
+               version="1.3"
+               schema-version="1.3"
+               min-version="1.0"
+               max-version="2.0"
+               target-platform="avalonia"
+               accessibility-compliance="wcag-aa">
   
-  <!-- Validation rules for control usage including includes -->
+  <!-- ENHANCED: v1.3 Validation Rules with Custom Validators and Profiles -->
   <validation-rules>
+    <validation-include src="wcag-validation.xml" important="true" min-version="1.3" />
+    <validation-include src="performance-rules.xml" important="true" min-version="1.3" />
+    <validation-include src="security-rules.xml" important="true" min-version="1.3" />
+    <validation-include src="view-validation.xml" important="true" min-version="1.2" />
     
-    <!-- External validation rule includes - loaded before local rules -->
-    <validation-include src="base-validation-rules.xml" important="true" />
-    <validation-include src="windows-validation-rules.xml" important="false" />
-    <validation-include src="accessibility-rules.xml" important="false" />
-    <validation-include src="performance-rules.xml" important="false" />
-    <validation-include src="view-validation.xml" important="true" />
+    <!-- Custom Business Rule Validator -->
+    <custom-validator name="BusinessRuleValidator" version="1.0" category="business-rules">
+      <description>Validates business-specific constraints</description>
+      <implementation>
+        <script language="javascript">
+          function validate(element, context) {
+            // Custom validation logic
+            return element.hasAttribute('required') ? element.value.length > 0 : true;
+          }
+        </script>
+      </implementation>
+      <parameter name="strict-mode" type="bool" default-value="false" required="false" 
+                 description="Enable strict business rule validation" />
+      <test-case name="required-field" description="Should validate required fields">
+        <input><TextBox required="true" text="" /></input>
+        <expected-result>fail</expected-result>
+        <expected-message>Required field cannot be empty</expected-message>
+      </test-case>
+    </custom-validator>
     
-    <!-- Include processing rules for validation:
-         - important="true": Must be found and loaded, build fails if missing
-         - important="false": Optional, warnings only if missing
-         - Includes are processed in order before local rules
-         - Local rules can override included rules
-         - Rule conflicts resolved by last-loaded-wins principle
-         - Rules with same name are merged (constraints combined)
-    -->
-    
-    <!-- Local validation rules -->
-    <rule name="control-definition-required">
-      <description>All controls used in windows must be defined in patterns node or included files</description>
-      <constraint>Every control element must reference a defined control or structure pattern from local or included definitions</constraint>
-    </rule>
-    
-    <rule name="pattern-include-validation">
-      <description>Pattern includes must be valid and accessible</description>
-      <constraint>Files marked important="true" must exist and be loadable</constraint>
-    </rule>
-    
-    <rule name="validation-include-validation">
-      <description>Validation includes must be valid and accessible</description>
-      <constraint>Validation files marked important="true" must exist and be loadable</constraint>
-    </rule>
-    
-    <rule name="view-window-consistency">
-      <description>View-window relationships must be valid</description>
-      <constraint>Windows referenced in views must exist and be properly associated</constraint>
-    </rule>
-    
-    <rule name="attribute-validation">
-      <description>Control attributes must match pattern definitions</description>
-      <constraint>Only attributes defined in control patterns (local or included) are allowed</constraint>
-    </rule>
-    
-    <rule name="container-children-validation">
-      <description>Container controls must only contain allowed child types</description>
-      <constraint>Child controls must be compatible with parent container per included definitions</constraint>
-    </rule>
-    
-    <rule name="required-attributes">
-      <description>Required attributes must be specified</description>
-      <constraint>Controls with required="true" attributes must have values</constraint>
-    </rule>
-    
-    <rule name="include-precedence">
-      <description>Pattern and validation override resolution order</description>
-      <constraint>Local definitions override included definitions, later includes override earlier ones</constraint>
-    </rule>
+    <!-- Production Validation Profile -->
+    <validation-profile name="ProductionProfile" version="1.0" target-platform="avalonia" enabled="true">
+      <description>Production-ready validation with accessibility and performance checks</description>
+      <profile-rule rule-name="BusinessRuleValidator" enabled="true" severity="error" 
+                    configuration="strict-mode=true" />
+      <profile-rule rule-name="accessibility-compliance" enabled="true" severity="warning" />
+      <profile-group group-name="performance-validation" enabled="true" override-severity="warning" />
+      <configuration stop-on-first-error="false" max-errors="100" parallel-execution="true" cache-results="true">
+        <setting key="accessibility-level" value="wcag-aa" scope="profile" />
+        <setting key="performance-threshold" value="2000ms" scope="profile" />
+        <exclusion pattern="*.test.xml" type="file" reason="Test files excluded from production validation" />
+      </configuration>
+    </validation-profile>
   </validation-rules>
   
-  <!-- Pattern definitions - must be first and only one patterns node -->
+  <!-- ENHANCED: v1.3 Pattern Definitions with Advanced Features -->
   <patterns>
+    <pattern-include src="avalonia-controls.xml" important="true" platform="avalonia" min-version="1.3" />
+    <pattern-include src="accessibility-controls.xml" important="true" min-version="1.3" />
+    <pattern-include src="performance-controls.xml" important="false" min-version="1.3" />
     
-    <!-- External pattern includes - loaded before local definitions -->
-    <pattern-include src="windows-controls.xml" important="true" />
-    <pattern-include src="KDE-controls.xml" important="false" />
-    <pattern-include src="web-controls.xml" important="false" />
-    <pattern-include src="mobile-controls.xml" important="false" />
-    
-    <!-- Include processing rules:
-         - important="true": Must be found and loaded, build fails if missing
-         - important="false": Optional, warnings only if missing
-         - Includes are processed in order before local definitions
-         - Local definitions can override included patterns
-         - Naming conflicts resolved by last-loaded-wins principle
-    -->
-    
-    <!-- Base wireframe layouts -->
-    <wireframe name="StandardAppLayout" type="base-layout">
-      <description>Standard application layout with header, sidebar, content, and footer</description>
-      <template>
-        <Panel name="rootContainer">
-          <Panel name="headerPanel" height="60">
-            <slot name="header-content" default="true">
-              <Label name="appTitle" text="Application Title" />
-              <slot name="header-actions" />
-            </slot>
-          </Panel>
-          
-          <Panel name="mainContainer" orientation="horizontal">
-            <Panel name="sidebarPanel" width="250" visible="true">
-              <slot name="sidebar-content" default="true">
-                <Menu name="navigationMenu" orientation="vertical">
-                  <slot name="navigation-items" />
-                </Menu>
-              </slot>
-            </Panel>
-            
-            <Panel name="contentPanel" fill="true">
-              <slot name="main-content" required="true" />
-            </Panel>
-          </Panel>
-          
-          <Panel name="footerPanel" height="30">
-            <slot name="footer-content" default="true">
-              <Label name="statusLabel" text="Ready" />
-            </slot>
-          </Panel>
-        </Panel>
-      </template>
-    </wireframe>
-    
-    <wireframe name="DialogLayout" type="base-layout">
-      <description>Standard modal dialog layout</description>
-      <template>
-        <Panel name="dialogContainer">
-          <Panel name="titleBar" height="40">
-            <slot name="dialog-title" default="true">
-              <Label name="titleLabel" text="Dialog" />
-            </slot>
-            <Button name="closeButton" text="×" style="borderless" />
-          </Panel>
-          
-          <Panel name="dialogContent" padding="20">
-            <slot name="dialog-body" required="true" />
-          </Panel>
-          
-          <Panel name="buttonBar" height="50" alignment="right">
-            <slot name="dialog-buttons" default="true">
-              <Button name="okButton" text="OK" style="primary" />
-              <Button name="cancelButton" text="Cancel" />
-            </slot>
-          </Panel>
-        </Panel>
-      </template>
-    </wireframe>
-    
-    <wireframe name="FormLayout" type="base-layout">
-      <description>Standard form layout with sections</description>
-      <template>
-        <Panel name="formContainer">
-          <slot name="form-header" />
-          
-          <Panel name="formSections">
-            <slot name="form-content" required="true" />
-          </Panel>
-          
-          <Panel name="formActions" alignment="right">
-            <slot name="form-buttons" default="true">
-              <Button name="saveButton" text="Save" style="primary" />
-              <Button name="cancelButton" text="Cancel" />
-            </slot>
-          </Panel>
-        </Panel>
-      </template>
-    </wireframe>
-    
-    <!-- Base control definitions with constraints -->
-    <control name="Label" type="display" category="basic">
-      <constraints>
-        <allowed-parents>Panel,FormField,Menu</allowed-parents>
-        <allowed-children>none</allowed-children>
-        <container>false</container>
-      </constraints>
-      <attributes>
-        <attribute name="text" type="string" default="" required="false" />
-        <attribute name="font-size" type="int" default="12" min="8" max="72" />
-        <attribute name="color" type="color" default="#000000" />
-        <attribute name="alignment" type="enum" values="left,center,right" default="left" />
-      </attributes>
-      <behavior>
-        <event name="click" />
-      </behavior>
-    </control>
-    
-    <control name="TextBox" type="input" category="input">
-      <constraints>
-        <allowed-parents>Panel,FormField</allowed-parents>
-        <allowed-children>none</allowed-children>
-        <container>false</container>
-      </constraints>
-      <attributes>
-        <attribute name="value" type="string" default="" />
-        <attribute name="placeholder" type="string" default="" />
-        <attribute name="max-length" type="int" default="255" min="1" max="10000" />
-        <attribute name="readonly" type="bool" default="false" />
-        <attribute name="multiline" type="bool" default="false" />
-      </attributes>
-      <behavior>
-        <event name="text-changed" />
-        <event name="focus" />
-        <event name="blur" />
-      </behavior>
-    </control>
-    
-    <control name="ComboBox" type="input" category="input">
-      <constraints>
-        <allowed-parents>Panel,FormField</allowed-parents>
-        <allowed-children>items</allowed-children>
-        <container>false</container>
-        <requires-structure>items</requires-structure>
-      </constraints>
-      <attributes>
-        <attribute name="selected-value" type="string" default="" />
-        <attribute name="editable" type="bool" default="false" />
-      </attributes>
-      <behavior>
-        <event name="selection-changed" />
-      </behavior>
-      <structure>
-        <items min-count="0" max-count="unlimited">
-          <item value="" text="" />
-        </items>
-      </structure>
-    </control>
-    
-    <control name="Button" type="action" category="action">
-      <constraints>
-        <allowed-parents>Panel,FormField,ButtonBar</allowed-parents>
-        <allowed-children>none</allowed-children>
-        <container>false</container>
-      </constraints>
-      <attributes>
-        <attribute name="text" type="string" default="Button" required="true" />
-        <attribute name="enabled" type="bool" default="true" />
-        <attribute name="style" type="enum" values="normal,primary,secondary,danger,borderless" default="normal" />
-      </attributes>
-      <behavior>
-        <event name="click" required="true" />
-      </behavior>
-    </control>
-    
-    <control name="Panel" type="container" category="layout">
-      <constraints>
-        <allowed-parents>Panel,window,wireframe-instance</allowed-parents>
-        <allowed-children>any-control</allowed-children>
-        <container>true</container>
-        <max-children>unlimited</max-children>
-      </constraints>
-      <attributes>
-        <attribute name="border" type="bool" default="false" />
-        <attribute name="background-color" type="color" default="transparent" />
-        <attribute name="padding" type="int" default="0" min="0" max="50" />
-        <attribute name="orientation" type="enum" values="horizontal,vertical" default="vertical" />
-        <attribute name="alignment" type="enum" values="left,center,right,stretch" default="left" />
-        <attribute name="fill" type="bool" default="false" />
-        <attribute name="width" type="int" min="10" max="2000" />
-        <attribute name="height" type="int" min="10" max="2000" />
-        <attribute name="visible" type="bool" default="true" />
-      </attributes>
-      <structure>
-        <children allow-multiple="true" />
-      </structure>
-    </control>
-    
-    <control name="PopupPanel" type="container" category="layout" inherits="Panel">
+    <!-- Enhanced Control with v1.3 Features -->
+    <control name="EnhancedDataGrid" type="data" category="avalonia-data" schema-version="1.3">
+      <description>High-performance data grid with virtualization and accessibility</description>
       <constraints>
-        <allowed-parents>window</allowed-parents>
-        <allowed-children>any-control</allowed-children>
+        <allowed-parents>Panel,ScrollViewer,Border</allowed-parents>
+        <allowed-children>columns</allowed-children>
         <container>true</container>
+        <platform-constraints>
+          <platform-constraint platform="avalonia" min-version="11.0" feature-required="virtualization" />
+        </platform-constraints>
+        <performance-hints virtualization-supported="true" memory-intensive="true" 
+                          recommended-max-items="10000" />
       </constraints>
       <attributes>
-        <attribute name="modal" type="bool" default="true" />
-        <attribute name="visible" type="bool" default="false" />
-        <attribute name="position" type="enum" values="center,cursor,custom" default="center" />
+        <attribute name="items-source" type="binding" default="" category="data" 
+                   description="Collection of items to display" />
+        <attribute name="virtualization-enabled" type="bool" default="true" category="performance" 
+                   description="Enable row virtualization for large datasets" />
+        <attribute name="accessibility-mode" type="enum" values="standard,enhanced,full" default="enhanced" 
+                   category="accessibility" description="Level of accessibility support" />
+        <attribute name="performance-mode" type="enum" values="standard,optimized,maximum" default="optimized" 
+                   category="performance" description="Performance optimization level" />
       </attributes>
+      <validation>
+        <rule name="max-columns" type="range" pattern="count(columns/column) <= 50" 
+              message="Maximum 50 columns allowed for performance" severity="warning" />
+        <rule name="accessibility-headers" type="custom" message="Column headers required for accessibility" 
+              severity="error" />
+      </validation>
+      <accessibility>
+        <requirement standard="wcag" level="aa" description="Table headers and navigation" required="true" />
+        <requirement standard="section-508" level="aa" description="Keyboard navigation support" required="true" />
+      </accessibility>
+      <data-binding supports-two-way="true" supports-commands="true" supports-validation="true">
+        <bindable-property name="ItemsSource" type="collection" mode="OneWay" dependency-property="true" />
+        <bindable-property name="SelectedItem" type="object" mode="TwoWay" dependency-property="true" />
+        <bindable-property name="IsLoading" type="bool" mode="OneWay" default-value="false" />
+      </data-binding>
       <behavior>
-        <event name="opened" />
-        <event name="closed" />
+        <event name="selection-changed" async="false" accessibility-event="true" />
+        <event name="loading-started" async="true" />
+        <event name="loading-completed" async="true" />
+        <command name="RefreshCommand" can-execute-property="CanRefresh" async="true" />
+        <gesture name="swipe-refresh" type="swipe" platform-specific="mobile" />
       </behavior>
     </control>
     
-    <control name="Menu" type="navigation" category="navigation">
-      <constraints>
-        <allowed-parents>Panel</allowed-parents>
-        <allowed-children>menu-items</allowed-children>
-        <container>true</container>
-        <requires-structure>menu-items</requires-structure>
-      </constraints>
-      <attributes>
-        <attribute name="orientation" type="enum" values="horizontal,vertical" default="horizontal" />
-      </attributes>
-      <structure>
-        <menu-items min-count="1" max-count="unlimited">
-          <menu-item text="" action="" shortcut="" separator="false" />
-        </menu-items>
-      </structure>
-    </control>
-    
-    <control name="ListView" type="data" category="data">
-      <constraints>
-        <allowed-parents>Panel</allowed-parents>
-        <allowed-children>columns,items</allowed-children>
-        <container>true</container>
-        <requires-structure>columns</requires-structure>
-      </constraints>
-      <attributes>
-        <attribute name="view-mode" type="enum" values="list,details,icons" default="list" />
-        <attribute name="multi-select" type="bool" default="false" />
-        <attribute name="sort-column" type="string" default="" />
-        <attribute name="sort-direction" type="enum" values="asc,desc" default="asc" />
-      </attributes>
-      <behavior>
-        <event name="selection-changed" />
-        <event name="item-double-click" />
-      </behavior>
-      <structure>
-        <columns min-count="1" max-count="20">
-          <column name="" text="" width="" sortable="true" />
-        </columns>
-        <items min-count="0" max-count="unlimited">
-          <item>
-            <values>
-              <value column="" text="" />
-            </values>
-          </item>
-        </items>
-      </structure>
-    </control>
-    
-    <control name="TreeView" type="data" category="data">
-      <constraints>
-        <allowed-parents>Panel</allowed-parents>
-        <allowed-children>nodes</allowed-children>
-        <container>true</container>
-        <requires-structure>nodes</requires-structure>
-      </constraints>
-      <attributes>
-        <attribute name="show-lines" type="bool" default="true" />
-        <attribute name="show-root-lines" type="bool" default="true" />
-        <attribute name="checkboxes" type="bool" default="false" />
-      </attributes>
-      <behavior>
-        <event name="node-selected" />
-        <event name="node-expanded" />
-        <event name="node-collapsed" />
-      </behavior>
-      <structure>
-        <nodes min-count="0" max-count="unlimited">
-          <node text="" value="" expanded="false" checked="false">
-            <nodes max-depth="10">
-              <!-- Recursive node structure with depth limit -->
-            </nodes>
-          </node>
-        </nodes>
-      </structure>
-    </control>
-    
-    <!-- Additional specialized controls -->
-    <control name="TabControl" type="container" category="layout">
-      <constraints>
-        <allowed-parents>Panel</allowed-parents>
-        <allowed-children>tab</allowed-children>
-        <container>true</container>
-        <requires-structure>tabs</requires-structure>
-      </constraints>
-      <attributes>
-        <attribute name="selected-tab" type="string" default="" />
-        <attribute name="tab-position" type="enum" values="top,bottom,left,right" default="top" />
-      </attributes>
-      <structure>
-        <tabs min-count="1" max-count="20">
-          <tab name="" text="" visible="true" enabled="true">
-            <!-- Tab content can contain any controls -->
-          </tab>
-        </tabs>
-      </structure>
-    </control>
-    
-    <control name="ButtonBar" type="container" category="layout">
-      <constraints>
-        <allowed-parents>Panel,FormField</allowed-parents>
-        <allowed-children>Button</allowed-children>
-        <container>true</container>
-        <max-children>10</max-children>
-      </constraints>
-      <attributes>
-        <attribute name="alignment" type="enum" values="left,center,right" default="right" />
-        <attribute name="spacing" type="int" default="5" min="0" max="20" />
-      </attributes>
-    </control>
-    
-    <!-- Custom pattern with constraints -->
-    <structure name="FormField" type="pattern" category="composite">
-      <constraints>
-        <allowed-parents>Panel,FormLayout</allowed-parents>
-        <allowed-children>Label,TextBox,ComboBox,Button</allowed-children>
-        <container>true</container>
-        <required-slots>input</required-slots>
-      </constraints>
-      <attributes>
-        <attribute name="label-text" type="string" required="true" />
-        <attribute name="required" type="bool" default="false" />
-        <attribute name="validation-message" type="string" default="" />
-      </attributes>
+    <!-- Responsive Layout Wireframe -->
+    <wireframe name="ResponsiveAppLayout" type="base-layout" schema-version="1.3">
+      <description>Responsive application layout with accessibility and performance optimization</description>
+      <responsive>
+        <breakpoint name="mobile" max-width="768" orientation="any" template-override="MobileLayout" />
+        <breakpoint name="tablet" min-width="769" max-width="1024" orientation="any" />
+        <breakpoint name="desktop" min-width="1025" orientation="any" />
+      </responsive>
+      <theme-support>
+        <theme-variant name="light" type="light" />
+        <theme-variant name="dark" type="dark" />
+        <theme-variant name="high-contrast" type="high-contrast" resource-override="hc-resources.xml" />
+      </theme-support>
       <template>
-        <Panel name="fieldContainer">
-          <Label name="fieldLabel" text="{label-text}" />
-          <slot name="input" allowed-controls="TextBox,ComboBox,Button" required="true" />
-          <Label name="validationLabel" text="{validation-message}" visible="false" color="#ff0000" />
-        </Panel>
+        <Grid name="rootContainer">
+          <grid-definitions>
+            <row-definitions>
+              <row-definition height="Auto" shared-size-group="Header" />
+              <row-definition height="*" />
+              <row-definition height="Auto" shared-size-group="Footer" />
+            </row-definitions>
+            <column-definitions>
+              <column-definition width="Auto" min-width="200" />
+              <column-definition width="*" />
+            </column-definitions>
+          </grid-definitions>
+          
+          <slot name="header-content" grid-row="0" grid-column="0" grid-column-span="2" 
+                accessibility-landmark="banner" />
+          <slot name="sidebar-content" grid-row="1" grid-column="0" 
+                accessibility-landmark="navigation" conditional="screen-width > 768" />
+          <slot name="main-content" grid-row="1" grid-column="1" required="true" 
+                accessibility-landmark="main" />
+          <slot name="footer-content" grid-row="2" grid-column="0" grid-column-span="2" 
+                accessibility-landmark="contentinfo" />
+        </Grid>
       </template>
-    </structure>
-    
+    </wireframe>
   </patterns>
   
-  <!-- NEW: View definitions with external includes -->
+  <!-- ENHANCED: v1.3 Advanced View Definitions -->
   <views>
+    <view-include src="business-views.xml" important="true" min-version="1.2" />
     
-    <!-- External view includes - loaded before local view definitions -->
-    <view-include src="business-views.xml" important="true" />
-    <view-include src="admin-views.xml" important="false" />
-    
-    <!-- Base Application View -->
-    <view name="BaseApplicationView" type="base" category="framework">
-      <description>Base view for all application windows with common functionality</description>
+    <!-- Modern AI-Enhanced Application View -->
+    <view name="ModernDashboardView" type="ai-assisted" category="ai-enhanced" 
+          schema-version="1.3" platform="avalonia" singleton="true" lazy-loading="false" 
+          cacheable="true" priority="high">
+      <description>AI-enhanced dashboard with real-time analytics and collaboration</description>
       
       <metadata>
-        <permissions>app.access</permissions>
+        <model-class>DashboardModel</model-class>
+        <view-model-class>ModernDashboardViewModel</view-model-class>
+        <controller-class>DashboardController</controller-class>
+        <permissions>dashboard.read,analytics.view,ai.interact</permissions>
+        <author>Development Team</author>
+        <version>2.0.0</version>
+        <created-date>2024-01-15</created-date>
+        <modified-date>2024-03-10</modified-date>
+        <documentation-url>https://docs.company.com/dashboard</documentation-url>
+        <tags>
+          <tag>ai-enhanced</tag>
+          <tag>real-time</tag>
+          <tag>analytics</tag>
+          <tag>collaborative</tag>
+        </tags>
       </metadata>
       
-      <data-context>
-        <property name="currentUser" type="User" scope="global" />
-        <property name="applicationSettings" type="AppSettings" scope="global" />
-        <property name="isLoading" type="bool" scope="view" />
-      </data-context>
+      <!-- Advanced State Management -->
+      <state-management pattern="redux" persistence="distributed">
+        <state name="initializing" initial="true" data-snapshot="InitializingState" 
+               description="Loading dashboard components" />
+        <state name="loading-data" final="false" data-snapshot="LoadingState" 
+               description="Fetching analytics data" />
+        <state name="ready" final="false" data-snapshot="ReadyState" 
+               description="Dashboard fully loaded and interactive" />
+        <state name="ai-processing" final="false" data-snapshot="AIProcessingState" 
+               description="AI analysis in progress" />
+        <state name="error" final="false" data-snapshot="ErrorState" 
+               description="Error state with recovery options" />
+        
+        <transition from="initializing" to="loading-data" trigger="components-loaded" 
+                    condition="user.isAuthenticated" action="startDataLoad" />
+        <transition from="loading-data" to="ready" trigger="data-loaded" 
+                    condition="data.isValid && data.count > 0" action="finalizeLoad" />
+        <transition from="ready" to="ai-processing" trigger="ai-analysis-requested" 
+                    action="startAIAnalysis" />
+        <transition from="ai-processing" to="ready" trigger="ai-analysis-complete" 
+                    action="displayAIResults" />
+        <transition from="*" to="error" trigger="critical-error" action="handleError" />
+      </state-management>
       
-      <behaviors>
-        <behavior name="show-loading" scope="view" />
-        <behavior name="hide-loading" scope="view" />
-        <behavior name="show-error" scope="view" />
-        <behavior name="log-action" scope="global" />
-      </behaviors>
-    </view>
-    
-    <!-- Main Application View -->
-    <view name="MainApplicationView" type="dashboard" category="core" inherits="BaseApplicationView">
-      <description>Main application dashboard with navigation and overview</description>
+      <!-- Comprehensive Accessibility -->
+      <accessibility level="aaa" tested="true">
+        <compliance standard="wcag" level="aaa" verified="true" />
+        <compliance standard="section-508" level="aa" verified="true" />
+        <compliance standard="ada" level="aa" verified="false" />
+        <feature name="screen-reader" type="screen-reader" required="true" 
+                 implementation="Full NVDA, JAWS, and VoiceOver compatibility" />
+        <feature name="voice-control" type="voice-control" required="false" 
+                 implementation="Dragon NaturallySpeaking and Windows Speech Recognition" />
+        <feature name="high-contrast" type="high-contrast" required="true" 
+                 implementation="Windows High Contrast and custom themes" />
+        <feature name="magnification" type="magnification" required="true" 
+                 implementation="Support for 200-500% zoom levels" />
+        <feature name="eye-tracking" type="eye-tracking" required="false" 
+                 implementation="Tobii Eye Tracker integration" />
+      </accessibility>
       
-      <metadata>
-        <view-model-class>MainApplicationViewModel</view-model-class>
-        <controller-class>MainApplicationController</controller-class>
-        <permissions>app.main,dashboard.view</permissions>
-      </metadata>
+      <!-- Performance Optimization -->
+      <performance target-load-time="1000" memory-limit="150MB">
+        <metric name="first-contentful-paint" type="load-time" target="800ms" critical="true" />
+        <metric name="time-to-interactive" type="load-time" target="1200ms" critical="true" />
+        <metric name="memory-usage" type="memory-usage" target="100MB" critical="false" />
+        <metric name="cpu-usage" type="cpu-usage" target="5%" critical="false" />
+        <metric name="frame-rate" type="frame-rate" target="60fps" critical="false" />
+        
+        <optimization technique="lazy-loading" description="Load widgets on demand" impact="high" />
+        <optimization technique="virtualization" description="Virtualize large data grids" impact="high" />
+        <optimization technique="caching" description="Cache dashboard configurations" impact="medium" />
+        <optimization technique="code-splitting" description="Split AI components separately" impact="medium" />
+        <optimization technique="preloading" description="Preload critical dashboard data" impact="low" />
+      </performance>
       
+      <!-- Security Framework -->
+      <security level="high" audit-required="true">
+        <permission name="dashboard-read" type="read" required="true" scope="view" />
+        <permission name="analytics-access" type="read" required="true" scope="data" />
+        <permission name="ai-interact" type="execute" required="false" scope="global" />
+        <permission name="export-data" type="custom" required="false" scope="data" />
+        
+        <vulnerability-protection type="xss" protection="input-sanitization" severity="high" />
+        <vulnerability-protection type="injection" protection="parameterized-queries" severity="critical" />
+        <vulnerability-protection type="csrf" protection="anti-forgery-tokens" severity="high" />
+        <vulnerability-protection type="data-exposure" protection="data-masking" severity="medium" />
+        
+        <data-protection encryption="true" gdpr-compliant="true" />
+      </security>
+      
+      <!-- Advanced Localization -->
+      <localization default-culture="en-US" fallback-culture="en" rtl-support="true">
+        <supported-culture code="ar-SA" name="Arabic (Saudi Arabia)" completion="85" verified="false" />
+        <supported-culture code="he-IL" name="Hebrew (Israel)" completion="90" verified="true" />
+        <supported-culture code="zh-CN" name="Chinese (Simplified)" completion="95" verified="true" />
+        <supported-culture code="ja-JP" name="Japanese" completion="80" verified="false" />
+        <supported-culture code="de-DE" name="German" completion="100" verified="true" />
+        
+        <resource-bundle name="DashboardResources" path="Resources/Dashboard" type="resx" />
+        <resource-bundle name="AIResources" path="Resources/AI" type="json" />
+        <resource-bundle name="CommonResources" path="Resources/Common" type="resx" />
+      </localization>
+      
+      <!-- Comprehensive Testing -->
+      <testing coverage-target="95" strategy="e2e">
+        <test-scenario name="dashboard-load" type="functional" priority="critical" automated="true">
+          <step action="navigate-to-dashboard" expected="dashboard-container-visible" />
+          <step action="wait-for-data-load" expected="charts-populated" />
+          <step action="verify-ai-suggestions" expected="ai-panel-active" />
+        </test-scenario>
+        
+        <test-scenario name="accessibility-navigation" type="accessibility" priority="high" automated="true">
+          <step action="tab-through-controls" expected="all-interactive-elements-reachable" />
+          <step action="screen-reader-announcements" expected="proper-aria-labels-announced" />
+          <step action="high-contrast-mode" expected="all-content-visible" />
+        </test-scenario>
+        
+        <test-scenario name="performance-benchmark" type="performance" priority="high" automated="true">
+          <step action="measure-load-time" expected="under-1000ms" />
+          <step action="measure-memory-usage" expected="under-150mb" />
+          <step action="measure-frame-rate" expected="above-30fps" />
+        </test-scenario>
+        
+        <test-scenario name="ai-interaction" type="functional" priority="medium" automated="true">
+          <step action="request-ai-analysis" expected="ai-processing-indicator-shown" />
+          <step action="wait-for-ai-results" expected="insights-displayed" />
+          <step action="interact-with-suggestions" expected="actions-executed" />
+        </test-scenario>
+        
+        <automation framework="playwright" selector-strategy="accessibility" page-object-model="true" />
+      </testing>
+      
+      <!-- Dependencies -->
       <dependencies>
-        <view-ref name="UserManagementView" relationship="reference" required="false">
-          <interaction type="manage-users" />
-        </view-ref>
-        <view-ref name="SettingsView" relationship="reference" required="false">
-          <interaction type="configure-app" />
-        </view-ref>
-        <shared-component name="NotificationService" required="true" />
-        <shared-component name="SecurityService" required="true" />
+        <service-ref name="DashboardService" interface="IDashboardService" scope="scoped" required="true" />
+        <service-ref name="AIAnalyticsService" interface="IAIService" scope="singleton" required="false" />
+        <service-ref name="NotificationService" interface="INotificationService" scope="transient" required="true" />
+        <library-ref name="ChartingLibrary" version="3.2.1" source="nuget" optional="false" />
+        <library-ref name="AILibrary" version="1.5.0" source="internal" optional="true" />
       </dependencies>
       
+      <!-- Data Context -->
       <data-context>
-        <property name="dashboardData" type="DashboardData" scope="view" />
-        <property name="recentItems" type="RecentItemsList" scope="view" />
-        <property name="notifications" type="NotificationList" scope="view" />
+        <property name="dashboardData" type="DashboardData" scope="view" nullable="false" 
+                  validation="NotNull" observable="true" />
+        <property name="aiInsights" type="AIInsightCollection" scope="view" nullable="true" 
+                  default-value="null" observable="true" />
+        <property name="userPreferences" type="UserPreferences" scope="session" nullable="false" 
+                  persistent="true" observable="true" />
+        <property name="realTimeData" type="RealTimeDataStream" scope="distributed" nullable="true" 
+                  observable="true" />
       </data-context>
       
+      <!-- Windows -->
       <windows>
-        <window-ref name="MainWindow" role="main" default="true" />
+        <window-ref name="MainDashboard" role="main" default="true" lazy-load="false" 
+                    cache-lifetime="3600" priority="critical" />
+        <window-ref name="AIInsightsPanel" role="preview" default="false" lazy-load="true" 
+                    priority="normal" />
+        <window-ref name="SettingsDialog" role="utility" default="false" lazy-load="true" 
+                    priority="low" />
       </windows>
       
+      <!-- Navigation -->
       <navigation>
-        <action name="show-dashboard" target="MainWindow" />
-        <action name="show-users" target="UserManagementView" />
-        <action name="show-settings" target="SettingsView" />
-        <action name="show-reports" target="MainWindow" context="reportsPanel" />
+        <action name="show-dashboard" target="MainDashboard" async="false" 
+                confirmation-required="false" permission="dashboard-read" />
+        <action name="show-ai-insights" target="AIInsightsPanel" async="true" 
+                confirmation-required="false" permission="ai-interact" />
+        <action name="export-data" target="MainDashboard" async="true" 
+                confirmation-required="true" permission="export-data" />
+        <action name="show-settings" target="SettingsDialog" async="false" 
+                confirmation-required="false" />
       </navigation>
       
+      <!-- Behaviors -->
       <behaviors>
-        <behavior name="refresh-dashboard" scope="view" />
-        <behavior name="load-recent-items" scope="view" />
-        <behavior name="check-notifications" scope="view" />
+        <behavior name="refresh-dashboard" scope="view" async="true" debounce="1000" cancellable="true" />
+        <behavior name="ai-analyze" scope="view" async="true" throttle="5000" cancellable="true" />
+        <behavior name="save-preferences" scope="session" async="false" />
+        <behavior name="export-dashboard" scope="application" async="true" cancellable="true" />
       </behaviors>
       
+      <!-- Communication -->
       <communication>
         <publishes>
-          <event name="dashboard-loaded" data="dashboard-id" />
-          <event name="user-activity" data="activity-type,timestamp" />
+          <event name="dashboard-loaded" data="dashboard-id,load-time" async="false" 
+                 broadcast="false" persistent="false" />
+          <event name="ai-analysis-requested" data="analysis-type,parameters" async="true" 
+                 broadcast="true" persistent="true" />
+          <event name="data-exported" data="export-format,file-path" async="false" 
+                 broadcast="false" persistent="true" />
         </publishes>
+        
         <subscribes>
-          <event name="user-logged-in" source="SecurityService" handler="refresh-dashboard" />
-          <event name="settings-changed" source="SettingsView" handler="apply-settings" />
+          <event name="data-updated" source="DataService" handler="refresh-dashboard" 
+                 async="true" debounce="2000" filter="dashboard-relevant" />
+          <event name="user-preferences-changed" source="SettingsView" handler="apply-preferences" 
+                 async="false" />
+          <event name="ai-model-updated" source="AIService" handler="refresh-ai-capabilities" 
+                 async="true" />
         </subscribes>
+        
+        <real-time>
+          <connection name="dashboard-updates" protocol="signalr" endpoint="/dashboardHub" 
+                      auto-reconnect="true" />
+          <connection name="ai-stream" protocol="websocket" endpoint="/ai-insights" 
+                      auto-reconnect="true" />
+        </real-time>
       </communication>
     </view>
-    
-    <!-- User Management View -->
-    <view name="UserManagementView" type="business-entity" category="admin" inherits="BaseApplicationView">
-      <description>User account management including creation, editing, and permissions</description>
-      
-      <metadata>
-        <model-class>User</model-class>
-        <view-model-class>UserManagementViewModel</view-model-class>
-        <controller-class>UserController</controller-class>
-        <permissions>user.read,user.write,user.admin</permissions>
-      </metadata>
-      
-      <data-context>
-        <property name="currentUser" type="User" scope="view" />
-        <property name="userList" type="UserList" scope="view" />
-        <property name="selectedUsers" type="UserList" scope="view" />
-        <property name="userRoles" type="RoleList" scope="view" />
-      </data-context>
-      
-      <windows>
-        <window-ref name="UserListWindow" role="main" default="true" />
-        <window-ref name="UserEditDialog" role="editor" modal="true" />
-        <window-ref name="UserPermissionsDialog" role="utility" modal="true" />
-      </windows>
-      
-      <navigation>
-        <action name="show-user-list" target="UserListWindow" />
-        <action name="edit-user" target="UserEditDialog" context="currentUser" />
-        <action name="create-user" target="UserEditDialog" />
-        <action name="manage-permissions" target="UserPermissionsDialog" context="currentUser" />
-      </navigation>
-      
-      <behaviors>
-        <behavior name="refresh-users" scope="view" />
-        <behavior name="validate-user" scope="view" />
-        <behavior name="save-user" scope="view" />
-        <behavior name="delete-user" scope="view" />
-        <behavior name="reset-password" scope="view" />
-      </behaviors>
-      
-      <communication>
-        <publishes>
-          <event name="user-created" data="user-id" />
-          <event name="user-updated" data="user-id" />
-          <event name="user-deleted" data="user-id" />
-        </publishes>
-      </communication>
-    </view>
-    
-    <!-- Settings View -->
-    <view name="SettingsView" type="utility" category="system" inherits="BaseApplicationView">
-      <description>Application configuration and user preferences</description>
-      
-      <metadata>
-        <model-class>ApplicationSettings</model-class>
-        <view-model-class>SettingsViewModel</view-model-class>
-        <controller-class>SettingsController</controller-class>
-        <permissions>settings.read,settings.write</permissions>
-      </metadata>
-      
-      <data-context>
-        <property name="currentSettings" type="ApplicationSettings" scope="view" />
-        <property name="userPreferences" type="UserPreferences" scope="view" />
-        <property name="systemInfo" type="SystemInfo" scope="view" />
-      </data-context>
-      
-      <windows>
-        <window-ref name="SettingsWindow" role="main" default="true" />
-      </windows>
-      
-      <navigation>
-        <action name="show-settings" target="SettingsWindow" />
-        <action name="reset-to-defaults" target="SettingsWindow" />
-      </navigation>
-      
-      <behaviors>
-        <behavior name="load-settings" scope="view" />
-        <behavior name="save-settings" scope="view" />
-        <behavior name="validate-settings" scope="view" />
-        <behavior name="export-settings" scope="view" />
-        <behavior name="import-settings" scope="view" />
-      </behaviors>
-      
-      <communication>
-        <publishes>
-          <event name="settings-changed" data="setting-category" />
-          <event name="settings-saved" data="timestamp" />
-        </publishes>
-      </communication>
-    </view>
-    
   </views>
   
-  <!-- Window definitions with view associations and wireframe inheritance -->
-  <window name="MainWindow" title="Main Application" wireframe="StandardAppLayout" view="MainApplicationView">
+  <!-- ENHANCED: Window Includes with Conditional Loading -->
+  <window-includes>
+    <window-include src="avalonia-windows.xml" important="true" platform="avalonia" min-version="1.3" />
+    <window-include src="accessibility-windows.xml" important="false" min-version="1.3" />
+    <window-include src="mobile-responsive-windows.xml" important="false" platform="mobile" />
+  </window-includes>
+  
+  <!-- ENHANCED: Modern Dashboard Window with v1.3 Features -->
+  <window name="MainDashboard" title="AI-Enhanced Analytics Dashboard" 
+          wireframe="ResponsiveAppLayout" view="ModernDashboardView"
+          target-platform="avalonia" schema-version="1.3">
+    
     <attributes>
-      <attribute name="width" value="1200" />
-      <attribute name="height" value="800" />
-      <attribute name="resizable" value="true" />
-      <attribute name="start-position" value="center" />
-      <attribute name="minimize-to-tray" value="true" />
+      <attribute name="width" value="1400" />
+      <attribute name="height" value="900" />
+      <attribute name="min-width" value="800" />
+      <attribute name="min-height" value="600" />
+      <attribute name="window-state" value="Maximized" />
+      <attribute name="can-resize" value="true" />
+      <attribute name="system-decorations" value="Full" />
     </attributes>
     
-    <!-- NEW: View properties for view integration -->
     <view-properties>
       <role>main</role>
       <default>true</default>
+      <modal>false</modal>
       <data-context-binding>dashboardData</data-context-binding>
     </view-properties>
     
-    <!-- Override specific slots from the wireframe -->
+    <!-- Advanced Data Binding -->
+    <data-binding>
+      <data-context source="ModernDashboardViewModel" type="ViewModels.ModernDashboardViewModel" mode="TwoWay" />
+      <view-model class="ModernDashboardViewModel" assembly="Dashboard.ViewModels" 
+                  namespace="Dashboard.ViewModels" />
+      <binding-properties>
+        <property control="loadingIndicator" property="IsVisible" binding-path="IsLoading" 
+                  mode="OneWay" converter="BooleanToVisibilityConverter" />
+        <property control="dataGrid" property="ItemsSource" binding-path="DashboardItems" 
+                  mode="OneWay" validation-rule="NotNullValidator" />
+        <property control="aiPanel" property="Insights" binding-path="AIInsights" 
+                  mode="OneWay" converter="InsightCollectionConverter" />
+      </binding-properties>
+    </data-binding>
+    
+    <!-- Comprehensive Accessibility -->
+    <accessibility compliance-level="wcag-aa">
+      <screen-reader window-title="Analytics Dashboard" 
+                     description="Main dashboard displaying real-time analytics with AI insights"
+                     landmark-role="main" />
+      <keyboard-navigation tab-order-start="1" focus-trap="false" escape-closes="false" />
+      <color-contrast high-contrast-support="true" minimum-ratio="4.5" />
+    </accessibility>
+    
     <slot-overrides>
-      <slot name="header-actions">
-        <Button name="userProfileButton" text="Profile" />
-        <Button name="settingsButton" text="Settings" />
-        <Button name="helpButton" text="Help" />
+      <!-- Enhanced Header with AI Assistant -->
+      <slot name="header-content">
+        <Grid name="headerGrid">
+          <grid-definitions>
+            <column-definitions>
+              <column-definition width="*" />
+              <column-definition width="Auto" />
+              <column-definition width="Auto" />
+            </column-definitions>
+          </grid-definitions>
+          
+          <StackPanel name="titlePanel" grid-column="0" orientation="horizontal" spacing="10">
+            <TextBlock name="titleText" text="Analytics Dashboard" font-size="18" font-weight="Bold"
+                       aria-label="Dashboard title" />
+            <ProgressBar name="loadingIndicator" width="100" height="4" 
+                         is-indeterminate="true" is-visible="{Binding IsLoading}"
+                         aria-label="Loading progress" />
+          </StackPanel>
+          
+          <StackPanel name="aiPanel" grid-column="1" orientation="horizontal" spacing="5">
+            <Button name="aiAssistantButton" text="AI Assistant" 
+                    command="{Binding ShowAIAssistantCommand}"
+                    aria-label="Open AI Assistant panel"
+                    tooltip="Get AI-powered insights and suggestions" />
+            <InfoBar name="aiStatusInfo" severity="Informational" 
+                     message="{Binding AIStatus}" is-open="{Binding ShowAIStatus}"
+                     aria-live="polite" />
+          </StackPanel>
+          
+          <StackPanel name="userPanel" grid-column="2" orientation="horizontal" spacing="5">
+            <Button name="settingsButton" text="Settings" 
+                    command="{Binding ShowSettingsCommand}"
+                    aria-label="Open application settings" />
+            <Button name="profileButton" text="{Binding CurrentUser.Name}" 
+                    command="{Binding ShowProfileCommand}"
+                    aria-label="User profile menu" />
+          </StackPanel>
+        </Grid>
       </slot>
       
-      <slot name="navigation-items">
-        <menu-items>
-          <menu-item text="Dashboard" action="show-dashboard" />
-          <menu-item text="Users" action="show-users" />
-          <menu-item text="Reports" action="show-reports" />
-          <menu-item text="Settings" action="show-settings" />
-          <menu-item text="" separator="true" />
-          <menu-item text="About" action="show-about" />
-        </menu-items>
+      <!-- Responsive Sidebar with Performance Optimization -->
+      <slot name="sidebar-content" visibility-binding="ScreenWidth" 
+            visibility-value="GreaterThan:768" visibility-converter="ComparisonConverter">
+        <NavigationView name="mainNavigation" is-pane-open="true" display-mode="Left"
+                        aria-label="Main navigation menu">
+          <NavigationView.MenuItems>
+            <NavigationViewItem name="dashboardNav" content="Dashboard" icon="Home"
+                                command="{Binding NavigateToDashboardCommand}"
+                                aria-label="Navigate to dashboard overview" />
+            <NavigationViewItem name="analyticsNav" content="Analytics" icon="BarChart"
+                                command="{Binding NavigateToAnalyticsCommand}"
+                                aria-label="Navigate to detailed analytics" />
+            <NavigationViewItem name="reportsNav" content="Reports" icon="Document"
+                                command="{Binding NavigateToReportsCommand}"
+                                aria-label="Navigate to reports section" />
+            <NavigationViewItem name="aiInsightsNav" content="AI Insights" icon="Lightbulb"
+                                command="{Binding NavigateToAIInsightsCommand}"
+                                aria-label="Navigate to AI-powered insights"
+                                badge="{Binding NewInsightsCount}" />
+          </NavigationView.MenuItems>
+        </NavigationView>
       </slot>
       
+      <!-- Main Content with Advanced Data Visualization -->
       <slot name="main-content">
-        <!-- Main application content -->
-        <Panel name="dashboardPanel">
-          <Label name="welcomeLabel" text="Welcome to Dashboard" font-size="18" />
+        <Grid name="contentGrid">
+          <grid-definitions>
+            <row-definitions>
+              <row-definition height="Auto" />
+              <row-definition height="*" />
+              <row-definition height="Auto" />
+            </row-definitions>
+          </grid-definitions>
           
-          <Panel name="statisticsPanel" orientation="horizontal">
-            <Panel name="statsLeft" width="400">
-              <Label name="totalUsersLabel" text="Total Users: 0" />
-              <Label name="activeSessionsLabel" text="Active Sessions: 0" />
-              <Label name="systemStatusLabel" text="System Status: Running" />
-            </Panel>
-            
-            <Panel name="statsRight" fill="true">
-              <ListView name="recentItems" view-mode="details">
-                <columns>
-                  <column name="name" text="Name" width="200" sortable="true" />
-                  <column name="date" text="Date" width="150" sortable="true" />
-                  <column name="user" text="User" width="120" sortable="true" />
-                  <column name="status" text="Status" width="100" sortable="true" />
-                </columns>
-              </ListView>
-            </Panel>
-          </Panel>
+          <!-- Filter and Search Panel -->
+          <Border name="filterPanel" grid-row="0" background="LightGray" padding="10" 
+                  corner-radius="5" margin="5" aria-label="Dashboard filters">
+            <Grid>
+              <grid-definitions>
+                <column-definitions>
+                  <column-definition width="Auto" />
+                  <column-definition width="*" />
+                  <column-definition width="Auto" />
+                  <column-definition width="Auto" />
+                </column-definitions>
+              </grid-definitions>
+              
+              <TextBlock name="filterLabel" grid-column="0" text="Filters:" 
+                         vertical-alignment="Center" margin="0,0,10,0"
+                         aria-label="Filter controls" />
+              
+              <AutoCompleteBox name="searchBox" grid-column="1" placeholder-text="Search dashboard items..."
+                               text="{Binding SearchText, Mode=TwoWay}" 
+                               items-source="{Binding SearchSuggestions}"
+                               minimum-prefix-length="2" filter-mode="Contains"
+                               aria-label="Search dashboard content"
+                               aria-description="Type to search and filter dashboard items" />
+              
+              <DatePicker name="dateFilter" grid-column="2" 
+                          selected-date="{Binding FilterDate, Mode=TwoWay}"
+                          aria-label="Filter by date" margin="10,0,0,0" />
+              
+              <Button name="refreshButton" grid-column="3" text="Refresh" 
+                      command="{Binding RefreshCommand}"
+                      aria-label="Refresh dashboard data" margin="10,0,0,0" />
+            </Grid>
+          </Border>
           
-          <Panel name="quickActionsPanel">
-            <ButtonBar name="quickActions" alignment="left">
-              <Button name="addUserButton" text="Add User" style="primary" />
-              <Button name="generateReportButton" text="Generate Report" />
-              <Button name="backupDataButton" text="Backup Data" />
-            </ButtonBar>
-          </Panel>
-        </Panel>
+          <!-- Enhanced Data Grid with Virtualization -->
+          <EnhancedDataGrid name="dashboardGrid" grid-row="1" 
+                            items-source="{Binding DashboardItems}"
+                            selected-item="{Binding SelectedItem, Mode=TwoWay}"
+                            virtualization-enabled="true"
+                            accessibility-mode="enhanced"
+                            performance-mode="optimized"
+                            aria-label="Dashboard data grid"
+                            aria-description="Tabular view of dashboard metrics with sorting and filtering">
+            <columns>
+              <DataGridTextColumn header="Metric" binding="{Binding Name}" width="200" 
+                                  is-read-only="true" aria-label="Metric name" />
+              <DataGridTextColumn header="Value" binding="{Binding Value}" width="150" 
+                                  is-read-only="true" aria-label="Current value" />
+              <DataGridTextColumn header="Change" binding="{Binding Change}" width="100" 
+                                  is-read-only="true" aria-label="Change from previous period" />
+              <DataGridTextColumn header="Trend" binding="{Binding Trend}" width="100" 
+                                  is-read-only="true" aria-label="Trend indicator" />
+              <DataGridTemplateColumn header="Actions" width="150" aria-label="Available actions">
+                <DataGridTemplateColumn.CellTemplate>
+                  <DataTemplate>
+                    <StackPanel orientation="horizontal" spacing="5">
+                      <Button content="Details" command="{Binding ShowDetailsCommand}"
+                              aria-label="Show metric details" />
+                      <Button content="Chart" command="{Binding ShowChartCommand}"
+                              aria-label="Show metric chart" />
+                    </StackPanel>
+                  </DataTemplate>
+                </DataGridTemplateColumn.CellTemplate>
+              </DataGridTemplateColumn>
+            </columns>
+          </EnhancedDataGrid>
+          
+          <!-- AI Insights Panel -->
+          <Expander name="aiInsightsExpander" grid-row="2" header="AI Insights" 
+                    is-expanded="{Binding ShowAIInsights}"
+                    aria-label="AI-powered insights and recommendations">
+            <ScrollViewer name="insightsScroller" max-height="200">
+              <ItemsRepeater name="insightsList" items-source="{Binding AIInsights}">
+                <ItemsRepeater.ItemTemplate>
+                  <DataTemplate>
+                    <Border background="LightBlue" padding="10" margin="5" corner-radius="5">
+                      <StackPanel spacing="5">
+                        <TextBlock text="{Binding Title}" font-weight="Bold" 
+                                   aria-label="Insight title" />
+                        <TextBlock text="{Binding Description}" text-wrapping="Wrap"
+                                   aria-label="Insight description" />
+                        <StackPanel orientation="horizontal" spacing="5">
+                          <Button content="Apply" command="{Binding ApplyCommand}"
+                                  aria-label="Apply this recommendation" />
+                          <Button content="Dismiss" command="{Binding DismissCommand}"
+                                  aria-label="Dismiss this insight" />
+                        </StackPanel>
+                      </StackPanel>
+                    </Border>
+                  </DataTemplate>
+                </ItemsRepeater.ItemTemplate>
+              </ItemsRepeater>
+            </ScrollViewer>
+          </Expander>
+        </Grid>
       </slot>
       
+      <!-- Enhanced Footer with Real-time Status -->
       <slot name="footer-content">
-        <Label name="statusLabel" text="Connected - System Ready" />
-        <Label name="versionLabel" text="v1.1.0" alignment="right" />
-        <Label name="timeLabel" text="00:00:00" alignment="right" />
+        <Grid name="footerGrid">
+          <grid-definitions>
+            <column-definitions>
+              <column-definition width="*" />
+              <column-definition width="Auto" />
+              <column-definition width="Auto" />
+              <column-definition width="Auto" />
+            </column-definitions>
+          </grid-definitions>
+          
+          <TextBlock name="statusText" grid-column="0" 
+                     text="{Binding StatusMessage}" 
+                     aria-live="polite" aria-label="Application status" />
+          
+          <TextBlock name="connectionStatus" grid-column="1" 
+                     text="{Binding ConnectionStatus}" margin="10,0"
+                     aria-label="Connection status" />
+          
+          <TextBlock name="lastUpdate" grid-column="2" 
+                     text="{Binding LastUpdateTime, StringFormat='Last updated: {0:HH:mm:ss}'}" 
+                     margin="10,0" aria-label="Last data update time" />
+          
+          <TextBlock name="versionInfo" grid-column="3" 
+                     text="v2.0.0" margin="10,0"
+                     aria-label="Application version" />
+        </Grid>
       </slot>
     </slot-overrides>
   </window>
   
-  <!-- User management window inheriting dialog wireframe -->
-  <window name="UserListWindow" title="User Management" wireframe="StandardAppLayout" view="UserManagementView">
+  <!-- AI Insights Panel Window -->
+  <window name="AIInsightsPanel" title="AI Insights" view="ModernDashboardView"
+          target-platform="avalonia" schema-version="1.3">
+    
     <attributes>
-      <attribute name="width" value="900" />
+      <attribute name="width" value="400" />
       <attribute name="height" value="600" />
-      <attribute name="modal" value="false" />
+      <attribute name="can-resize" value="true" />
+      <attribute name="show-in-taskbar" value="false" />
+      <attribute name="topmost" value="false" />
     </attributes>
     
     <view-properties>
-      <role>main</role>
-      <default>true</default>
-      <data-context-binding>userList</data-context-binding>
+      <role>preview</role>
+      <modal>false</modal>
+      <data-context-binding>aiInsights</data-context-binding>
+      <parent-window>MainDashboard</parent-window>
     </view-properties>
     
-    <slot-overrides>
-      <slot name="header-content">
-        <Label name="titleLabel" text="User Management" font-size="16" />
-        <Panel name="searchPanel" orientation="horizontal">
-          <TextBox name="searchInput" placeholder="Search users..." />
-          <Button name="searchButton" text="Search" />
-        </Panel>
-      </slot>
-      
-      <slot name="main-content">
-        <Panel name="userManagementPanel">
-          <Panel name="toolbarPanel" height="40" orientation="horizontal">
-            <ButtonBar name="userActions" alignment="left">
-              <Button name="addUserButton" text="Add User" style="primary" />
-              <Button name="editUserButton" text="Edit" enabled="false" />
-              <Button name="deleteUserButton" text="Delete" enabled="false" style="danger" />
-              <Button name="resetPasswordButton" text="Reset Password" enabled="false" />
-            </ButtonBar>
-            
-            <ButtonBar name="viewActions" alignment="right">
-              <Button name="refreshButton" text="Refresh" />
-              <Button name="exportButton" text="Export" />
-            </ButtonBar>
-          </Panel>
-          
-          <ListView name="userGrid" view-mode="details" multi-select="true">
-            <columns>
-              <column name="id" text="ID" width="80" sortable="true" />
-              <column name="username" text="Username" width="150" sortable="true" />
-              <column name="fullname" text="Full Name" width="200" sortable="true" />
-              <column name="email" text="Email" width="250" sortable="true" />
-              <column name="role" text="Role" width="120" sortable="true" />
-              <column name="status" text="Status" width="100" sortable="true" />
-              <column name="lastlogin" text="Last Login" width="150" sortable="true" />
-            </columns>
-          </ListView>
-        </Panel>
-      </slot>
-    </slot-overrides>
+    <accessibility compliance-level="wcag-aa">
+      <screen-reader window-title="AI Insights Panel" 
+                     description="Detailed view of AI-generated insights and recommendations"
+                     landmark-role="complementary" />
+      <keyboard-navigation tab-order-start="1" focus-trap="false" escape-closes="true" />
+    </accessibility>
+    
+    <ScrollViewer name="insightsContainer" vertical-scroll-bar-visibility="Auto">
+      <StackPanel name="insightsPanel" spacing="10" margin="10">
+        <TextBlock name="panelTitle" text="AI-Powered Insights" font-size="16" font-weight="Bold"
+                   aria-label="AI insights panel title" />
+        
+        <ItemsRepeater name="detailedInsightsList" items-source="{Binding AIInsights}">
+          <ItemsRepeater.ItemTemplate>
+            <DataTemplate>
+              <Border background="White" border-brush="Gray" border-thickness="1" 
+                      padding="15" margin="5" corner-radius="8">
+                <StackPanel spacing="10">
+                  <Grid>
+                    <grid-definitions>
+                      <column-definitions>
+                        <column-definition width="*" />
+                        <column-definition width="Auto" />
+                      </column-definitions>
+                    </grid-definitions>
+                    
+                    <TextBlock grid-column="0" text="{Binding Title}" font-weight="Bold" 
+                               font-size="14" aria-label="Insight title" />
+                    <TextBlock grid-column="1" text="{Binding Confidence, StringFormat='Confidence: {0:P0}'}" 
+                               font-size="12" foreground="Gray" aria-label="AI confidence level" />
+                  </Grid>
+                  
+                  <TextBlock text="{Binding Description}" text-wrapping="Wrap"
+                             aria-label="Detailed insight description" />
+                  
+                  <TextBlock text="{Binding Impact}" text-wrapping="Wrap" 
+                             font-style="Italic" foreground="DarkBlue"
+                             aria-label="Expected impact" />
+                  
+                  <StackPanel orientation="horizontal" spacing="10">
+                    <Button content="Apply Recommendation" 
+                            command="{Binding ApplyRecommendationCommand}"
+                            style="AccentButtonStyle"
+                            aria-label="Apply this AI recommendation" />
+                    <Button content="Learn More" 
+                            command="{Binding LearnMoreCommand}"
+                            aria-label="Learn more about this insight" />
+                    <Button content="Provide Feedback" 
+                            command="{Binding ProvideFeedbackCommand}"
+                            aria-label="Provide feedback on this insight" />
+                  </StackPanel>
+                  
+                  <TextBlock text="{Binding GeneratedAt, StringFormat='Generated: {0:g}'}" 
+                             font-size="10" foreground="Gray"
+                             aria-label="Insight generation timestamp" />
+                </StackPanel>
+              </Border>
+            </DataTemplate>
+          </ItemsRepeater.ItemTemplate>
+        </ItemsRepeater>
+        
+        <Button name="refreshInsightsButton" content="Refresh AI Insights" 
+                command="{Binding RefreshAIInsightsCommand}"
+                horizontal-alignment="Center" margin="20"
+                aria-label="Request new AI insights" />
+      </StackPanel>
+    </ScrollViewer>
   </window>
   
-  <!-- User edit dialog inheriting dialog wireframe -->
-  <window name="UserEditDialog" title="Edit User" wireframe="DialogLayout" view="UserManagementView">
+  <!-- Settings Dialog with Advanced Configuration -->
+  <window name="SettingsDialog" title="Application Settings" 
+          wireframe="DialogLayout" view="ModernDashboardView"
+          target-platform="avalonia" schema-version="1.3">
+    
     <attributes>
-      <attribute name="width" value="500" />
-      <attribute name="height" value="400" />
+      <attribute name="width" value="600" />
+      <attribute name="height" value="500" />
+      <attribute name="can-resize" value="true" />
       <attribute name="modal" value="true" />
-      <attribute name="resizable" value="false" />
+      <attribute name="show-in-taskbar" value="false" />
+      <attribute name="window-startup-location" value="CenterOwner" />
     </attributes>
     
     <view-properties>
-      <role>editor</role>
+      <role>utility</role>
       <modal>true</modal>
-      <data-context-binding>currentUser</data-context-binding>
-      <parent-window>UserListWindow</parent-window>
+      <data-context-binding>userPreferences</data-context-binding>
+      <parent-window>MainDashboard</parent-window>
     </view-properties>
     
-    <slot-overrides>
-      <slot name="dialog-title">
-        <Label name="titleLabel" text="User Details" />
-      </slot>
+    <data-binding>
+      <data-context source="SettingsViewModel" type="ViewModels.SettingsViewModel" mode="TwoWay" />
+      <binding-properties>
+        <property control="themeComboBox" property="SelectedItem" binding-path="SelectedTheme" 
+                  mode="TwoWay" validation-rule="NotNullValidator" />
+        <property control="languageComboBox" property="SelectedItem" binding-path="PreferredLanguage" 
+                  mode="TwoWay" />
+        <property control="accessibilityToggle" property="IsChecked" binding-path="HighContrastMode" 
+                  mode="TwoWay" />
+      </binding-properties>
+    </data-binding>
+    
+    <accessibility compliance-level="wcag-aa">
+      <screen-reader window-title="Application Settings Dialog" 
+                     description="Configure application preferences and accessibility options"
+                     landmark-role="dialog" />
+      <keyboard-navigation tab-order-start="1" focus-trap="true" escape-closes="true" />
+    </accessibility>
+    
+    <TabControl name="settingsTabs" selected-index="0" 
+                aria-label="Settings categories">
+      <TabItem name="generalTab" header="General" 
+               aria-label="General application settings">
+        <StackPanel spacing="15" margin="20">
+          <TextBlock text="General Settings" font-size="16" font-weight="Bold"
+                     aria-label="General settings section" />
+          
+          <Grid>
+            <grid-definitions>
+              <column-definitions>
+                <column-definition width="150" />
+                <column-definition width="*" />
+              </column-definitions>
+              <row-definitions>
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+              </row-definitions>
+            </grid-definitions>
+            
+            <TextBlock grid-row="0" grid-column="0" text="Theme:" 
+                       vertical-alignment="Center" aria-label="Theme selection" />
+            <ComboBox name="themeComboBox" grid-row="0" grid-column="1" 
+                      selected-item="{Binding SelectedTheme, Mode=TwoWay}"
+                      aria-label="Select application theme">
+              <ComboBoxItem content="Light Theme" />
+              <ComboBoxItem content="Dark Theme" />
+              <ComboBoxItem content="High Contrast" />
+              <ComboBoxItem content="System Default" />
+            </ComboBox>
+            
+            <TextBlock grid-row="1" grid-column="0" text="Language:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Language selection" />
+            <ComboBox name="languageComboBox" grid-row="1" grid-column="1" margin="0,10,0,0"
+                      selected-item="{Binding PreferredLanguage, Mode=TwoWay}"
+                      aria-label="Select application language">
+              <ComboBoxItem content="English" />
+              <ComboBoxItem content="German" />
+              <ComboBoxItem content="French" />
+              <ComboBoxItem content="Spanish" />
+              <ComboBoxItem content="Chinese (Simplified)" />
+              <ComboBoxItem content="Arabic" />
+              <ComboBoxItem content="Hebrew" />
+            </ComboBox>
+            
+            <TextBlock grid-row="2" grid-column="0" text="Auto-save:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Auto-save settings" />
+            <StackPanel grid-row="2" grid-column="1" orientation="horizontal" 
+                        spacing="10" margin="0,10,0,0">
+              <ToggleSwitch name="autoSaveToggle" 
+                            is-checked="{Binding AutoSaveEnabled, Mode=TwoWay}"
+                            aria-label="Enable automatic saving" />
+              <NumericUpDown name="autoSaveInterval" minimum="1" maximum="60" 
+                             value="{Binding AutoSaveInterval, Mode=TwoWay}"
+                             suffix=" minutes" width="100"
+                             aria-label="Auto-save interval in minutes" />
+            </StackPanel>
+            
+            <TextBlock grid-row="3" grid-column="0" text="Notifications:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Notification settings" />
+            <StackPanel grid-row="3" grid-column="1" spacing="5" margin="0,10,0,0">
+              <CheckBox name="desktopNotifications" 
+                        content="Desktop notifications" 
+                        is-checked="{Binding DesktopNotificationsEnabled, Mode=TwoWay}"
+                        aria-label="Enable desktop notifications" />
+              <CheckBox name="soundNotifications" 
+                        content="Sound notifications" 
+                        is-checked="{Binding SoundNotificationsEnabled, Mode=TwoWay}"
+                        aria-label="Enable sound notifications" />
+            </StackPanel>
+          </Grid>
+        </StackPanel>
+      </TabItem>
       
-      <slot name="dialog-body">
-        <!-- Use FormLayout as nested wireframe -->
-        <wireframe-instance name="userForm" wireframe="FormLayout">
-          <slot name="form-content">
-            <FormField name="usernameField" label-text="Username:" required="true">
-              <TextBox name="usernameInput" slot="input" max-length="50" />
-            </FormField>
+      <TabItem name="accessibilityTab" header="Accessibility" 
+               aria-label="Accessibility settings">
+        <StackPanel spacing="15" margin="20">
+          <TextBlock text="Accessibility Settings" font-size="16" font-weight="Bold"
+                     aria-label="Accessibility settings section" />
+          
+          <Grid>
+            <grid-definitions>
+              <column-definitions>
+                <column-definition width="200" />
+                <column-definition width="*" />
+              </column-definitions>
+              <row-definitions>
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+              </row-definitions>
+            </grid-definitions>
             
-            <FormField name="fullnameField" label-text="Full Name:" required="true">
-              <TextBox name="fullnameInput" slot="input" max-length="100" />
-            </FormField>
+            <TextBlock grid-row="0" grid-column="0" text="High Contrast Mode:" 
+                       vertical-alignment="Center" aria-label="High contrast mode" />
+            <ToggleSwitch name="accessibilityToggle" grid-row="0" grid-column="1"
+                          is-checked="{Binding HighContrastMode, Mode=TwoWay}"
+                          aria-label="Enable high contrast mode" />
             
-            <FormField name="emailField" label-text="Email:" required="true">
-              <TextBox name="emailInput" slot="input" max-length="255" />
-            </FormField>
+            <TextBlock grid-row="1" grid-column="0" text="Font Size:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Font size adjustment" />
+            <Slider name="fontSizeSlider" grid-row="1" grid-column="1" 
+                    minimum="12" maximum="24" value="{Binding FontSize, Mode=TwoWay}"
+                    tick-frequency="2" is-snap-to-tick-enabled="true"
+                    margin="0,10,0,0" aria-label="Adjust font size" />
             
-            <FormField name="roleField" label-text="Role:">
-              <ComboBox name="roleCombo" slot="input">
-                <items>
-                  <item value="admin" text="Administrator" />
-                  <item value="user" text="Standard User" />
-                  <item value="viewer" text="Viewer Only" />
-                  <item value="moderator" text="Moderator" />
-                </items>
-              </ComboBox>
-            </FormField>
+            <TextBlock grid-row="2" grid-column="0" text="Screen Reader:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Screen reader optimization" />
+            <CheckBox name="screenReaderOptimized" grid-row="2" grid-column="1" 
+                      content="Optimize for screen readers" margin="0,10,0,0"
+                      is-checked="{Binding ScreenReaderOptimized, Mode=TwoWay}"
+                      aria-label="Enable screen reader optimizations" />
             
-            <FormField name="statusField" label-text="Status:">
-              <ComboBox name="statusCombo" slot="input">
-                <items>
-                  <item value="active" text="Active" />
-                  <item value="inactive" text="Inactive" />
-                  <item value="suspended" text="Suspended" />
-                  <item value="pending" text="Pending Approval" />
-                </items>
-              </ComboBox>
-            </FormField>
+            <TextBlock grid-row="3" grid-column="0" text="Keyboard Navigation:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Keyboard navigation settings" />
+            <CheckBox name="enhancedKeyboardNav" grid-row="3" grid-column="1" 
+                      content="Enhanced keyboard navigation" margin="0,10,0,0"
+                      is-checked="{Binding EnhancedKeyboardNavigation, Mode=TwoWay}"
+                      aria-label="Enable enhanced keyboard navigation" />
             
-            <FormField name="passwordField" label-text="Password:" required="false">
-              <TextBox name="passwordInput" slot="input" />
-            </FormField>
-          </slot>
-          
-          <slot name="form-buttons">
-            <Button name="saveButton" text="Save User" style="primary" />
-            <Button name="cancelButton" text="Cancel" />
-            <Button name="resetPasswordButton" text="Reset Password" style="secondary" />
-          </slot>
-        </wireframe-instance>
-      </slot>
-      
-      <slot name="dialog-buttons">
-        <Button name="saveButton" text="Save Changes" style="primary" />
-        <Button name="cancelButton" text="Cancel" />
-        <Button name="deleteButton" text="Delete User" style="danger" />
-      </slot>
-    </slot-overrides>
-  </window>
-  
-  <!-- User permissions dialog -->
-  <window name="UserPermissionsDialog" title="User Permissions" wireframe="DialogLayout" view="UserManagementView">
-    <attributes>
-      <attribute name="width" value="600" />
-      <attribute name="height" value="500" />
-      <attribute name="modal" value="true" />
-    </attributes>
-    
-    <view-properties>
-      <role>utility</role>
-      <modal>true</modal>
-      <data-context-binding>currentUser</data-context-binding>
-      <parent-window>UserListWindow</parent-window>
-    </view-properties>
-    
-    <slot-overrides>
-      <slot name="dialog-title">
-        <Label name="titleLabel" text="Manage User Permissions" />
-      </slot>
+            <TextBlock grid-row="4" grid-column="0" text="Animation:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Animation preferences" />
+            <CheckBox name="reduceAnimations" grid-row="4" grid-column="1" 
+                      content="Reduce animations" margin="0,10,0,0"
+                      is-checked="{Binding ReduceAnimations, Mode=TwoWay}"
+                      aria-label="Reduce or disable animations" />
+          </Grid>
+        </StackPanel>
+      </TabItem>
       
-      <slot name="dialog-body">
-        <Panel name="permissionsPanel">
-          <Label name="userInfoLabel" text="User: {currentUser.username}" font-size="14" />
+      <TabItem name="performanceTab" header="Performance" 
+               aria-label="Performance settings">
+        <StackPanel spacing="15" margin="20">
+          <TextBlock text="Performance Settings" font-size="16" font-weight="Bold"
+                     aria-label="Performance settings section" />
           
-          <TabControl name="permissionTabs">
-            <tab name="basic" text="Basic Permissions">
-              <Panel name="basicPermissions">
-                <TreeView name="basicPermissionsTree" checkboxes="true">
-                  <nodes>
-                    <node text="Application Access" value="app.access" checked="true">
-                      <nodes>
-                        <node text="Dashboard View" value="dashboard.view" checked="true" />
-                        <node text="Reports View" value="reports.view" checked="false" />
-                        <node text="Settings Access" value="settings.read" checked="false" />
-                      </nodes>
-                    </node>
-                    <node text="User Management" value="user.manage" checked="false">
-                      <nodes>
-                        <node text="View Users" value="user.read" checked="false" />
-                        <node text="Create Users" value="user.create" checked="false" />
-                        <node text="Edit Users" value="user.write" checked="false" />
-                        <node text="Delete Users" value="user.delete" checked="false" />
-                      </nodes>
-                    </node>
-                  </nodes>
-                </TreeView>
-              </Panel>
-            </tab>
+          <Grid>
+            <grid-definitions>
+              <column-definitions>
+                <column-definition width="200" />
+                <column-definition width="*" />
+              </column-definitions>
+              <row-definitions>
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+              </row-definitions>
+            </grid-definitions>
             
-            <tab name="advanced" text="Advanced Permissions">
-              <Panel name="advancedPermissions">
-                <ListView name="advancedPermissionsList" view-mode="details" multi-select="true">
-                  <columns>
-                    <column name="permission" text="Permission" width="200" />
-                    <column name="description" text="Description" width="300" />
-                    <column name="granted" text="Granted" width="80" />
-                  </columns>
-                </ListView>
-              </Panel>
-            </tab>
+            <TextBlock grid-row="0" grid-column="0" text="Data Virtualization:" 
+                       vertical-alignment="Center" aria-label="Data virtualization" />
+            <ToggleSwitch name="virtualizationToggle" grid-row="0" grid-column="1"
+                          is-checked="{Binding VirtualizationEnabled, Mode=TwoWay}"
+                          aria-label="Enable data virtualization for large datasets" />
             
-            <tab name="roles" text="Role Assignment">
-              <Panel name="roleAssignment">
-                <FormField name="primaryRoleField" label-text="Primary Role:">
-                  <ComboBox name="primaryRoleCombo" slot="input">
-                    <items>
-                      <item value="admin" text="Administrator" />
-                      <item value="user" text="Standard User" />
-                      <item value="viewer" text="Viewer" />
-                    </items>
-                  </ComboBox>
-                </FormField>
-                
-                <FormField name="additionalRolesField" label-text="Additional Roles:">
-                  <ListView name="additionalRolesList" slot="input" view-mode="list" multi-select="true">
-                    <columns>
-                      <column name="role" text="Role" width="150" />
-                    </columns>
-                  </ListView>
-                </FormField>
-              </Panel>
-            </tab>
-          </TabControl>
-        </Panel>
-      </slot>
-      
-      <slot name="dialog-buttons">
-        <Button name="savePermissionsButton" text="Save Permissions" style="primary" />
-        <Button name="cancelButton" text="Cancel" />
-        <Button name="resetToDefaultButton" text="Reset to Default" />
-      </slot>
-    </slot-overrides>
-  </window>
-  
-  <!-- Settings window with partial wireframe override -->
-  <window name="SettingsWindow" title="Application Settings" wireframe="StandardAppLayout" view="SettingsView">
-    <attributes>
-      <attribute name="width" value="800" />
-      <attribute name="height" value="600" />
-      <attribute name="modal" value="false" />
-    </attributes>
-    
-    <view-properties>
-      <role>main</role>
-      <default>true</default>
-      <data-context-binding>currentSettings</data-context-binding>
-    </view-properties>
-    
-    <slot-overrides>
-      <!-- Keep default header but override navigation -->
-      <slot name="navigation-items">
-        <menu-items>
-          <menu-item text="General" action="settings-general" />
-          <menu-item text="Appearance" action="settings-appearance" />
-          <menu-item text="Security" action="settings-security" />
-          <menu-item text="Database" action="settings-database" />
-          <menu-item text="Logging" action="settings-logging" />
-          <menu-item text="Advanced" action="settings-advanced" />
-        </menu-items>
-      </slot>
+            <TextBlock grid-row="1" grid-column="0" text="Cache Size:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Memory cache size" />
+            <StackPanel grid-row="1" grid-column="1" orientation="horizontal" 
+                        spacing="10" margin="0,10,0,0">
+              <Slider name="cacheSizeSlider" minimum="50" maximum="500" 
+                      value="{Binding CacheSize, Mode=TwoWay}" width="200"
+                      aria-label="Set cache size in megabytes" />
+              <TextBlock text="{Binding CacheSize, StringFormat='{0} MB'}" 
+                         vertical-alignment="Center" />
+            </StackPanel>
+            
+            <TextBlock grid-row="2" grid-column="0" text="Background Updates:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Background update frequency" />
+            <ComboBox name="updateFrequencyCombo" grid-row="2" grid-column="1" margin="0,10,0,0"
+                      selected-item="{Binding UpdateFrequency, Mode=TwoWay}"
+                      aria-label="Select background update frequency">
+              <ComboBoxItem content="Real-time" />
+              <ComboBoxItem content="Every 30 seconds" />
+              <ComboBoxItem content="Every minute" />
+              <ComboBoxItem content="Every 5 minutes" />
+              <ComboBoxItem content="Manual only" />
+            </ComboBox>
+            
+            <TextBlock grid-row="3" grid-column="0" text="AI Processing:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="AI processing settings" />
+            <StackPanel grid-row="3" grid-column="1" spacing="5" margin="0,10,0,0">
+              <CheckBox name="enableAIProcessing" 
+                        content="Enable AI analysis" 
+                        is-checked="{Binding AIProcessingEnabled, Mode=TwoWay}"
+                        aria-label="Enable AI-powered analysis" />
+              <CheckBox name="localAIProcessing" 
+                        content="Prefer local processing" 
+                        is-checked="{Binding PreferLocalAI, Mode=TwoWay}"
+                        aria-label="Prefer local AI processing over cloud" />
+            </StackPanel>
+          </Grid>
+        </StackPanel>
+      </TabItem>
       
-      <slot name="main-content">
-        <Panel name="settingsContent">
-          <!-- Settings tabs or sections would go here -->
-          <TabControl name="settingsTabs">
-            <tab name="general" text="General Settings">
-              <Panel name="generalSettings">
-                <FormField name="appNameField" label-text="Application Name:">
-                  <TextBox name="appNameInput" slot="input" value="Sample Application" />
-                </FormField>
-                
-                <FormField name="languageField" label-text="Language:">
-                  <ComboBox name="languageCombo" slot="input">
-                    <items>
-                      <item value="en" text="English" />
-                      <item value="de" text="Deutsch" />
-                      <item value="fr" text="Français" />
-                      <item value="es" text="Español" />
-                    </items>
-                  </ComboBox>
-                </FormField>
-                
-                <FormField name="timezoneField" label-text="Timezone:">
-                  <ComboBox name="timezoneCombo" slot="input">
-                    <items>
-                      <item value="UTC" text="UTC" />
-                      <item value="EST" text="Eastern Time" />
-                      <item value="PST" text="Pacific Time" />
-                      <item value="CET" text="Central European Time" />
-                    </items>
-                  </ComboBox>
-                </FormField>
-                
-                <FormField name="autoSaveField" label-text="Auto-save interval (minutes):">
-                  <TextBox name="autoSaveInput" slot="input" value="5" />
-                </FormField>
-              </Panel>
-            </tab>
+      <TabItem name="securityTab" header="Security" 
+               aria-label="Security and privacy settings">
+        <StackPanel spacing="15" margin="20">
+          <TextBlock text="Security & Privacy" font-size="16" font-weight="Bold"
+                     aria-label="Security and privacy settings section" />
+          
+          <Grid>
+            <grid-definitions>
+              <column-definitions>
+                <column-definition width="200" />
+                <column-definition width="*" />
+              </column-definitions>
+              <row-definitions>
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+                <row-definition height="Auto" />
+              </row-definitions>
+            </grid-definitions>
             
-            <tab name="appearance" text="Appearance">
-              <Panel name="appearanceSettings">
-                <FormField name="themeField" label-text="Theme:">
-                  <ComboBox name="themeCombo" slot="input">
-                    <items>
-                      <item value="light" text="Light Theme" />
-                      <item value="dark" text="Dark Theme" />
-                      <item value="auto" text="Auto (System)" />
-                      <item value="high-contrast" text="High Contrast" />
-                    </items>
-                  </ComboBox>
-                </FormField>
-                
-                <FormField name="fontSizeField" label-text="Font Size:">
-                  <ComboBox name="fontSizeCombo" slot="input">
-                    <items>
-                      <item value="small" text="Small" />
-                      <item value="medium" text="Medium" />
-                      <item value="large" text="Large" />
-                      <item value="extra-large" text="Extra Large" />
-                    </items>
-                  </ComboBox>
-                </FormField>
-                
-                <FormField name="colorSchemeField" label-text="Color Scheme:">
-                  <ComboBox name="colorSchemeCombo" slot="input">
-                    <items>
-                      <item value="blue" text="Blue" />
-                      <item value="green" text="Green" />
-                      <item value="purple" text="Purple" />
-                      <item value="orange" text="Orange" />
-                    </items>
-                  </ComboBox>
-                </FormField>
-              </Panel>
-            </tab>
+            <TextBlock grid-row="0" grid-column="0" text="Data Encryption:" 
+                       vertical-alignment="Center" aria-label="Data encryption" />
+            <ToggleSwitch name="encryptionToggle" grid-row="0" grid-column="1"
+                          is-checked="{Binding DataEncryptionEnabled, Mode=TwoWay}"
+                          aria-label="Enable data encryption" />
             
-            <tab name="security" text="Security">
-              <Panel name="securitySettings">
-                <FormField name="sessionTimeoutField" label-text="Session Timeout (minutes):">
-                  <TextBox name="sessionTimeoutInput" slot="input" value="30" />
-                </FormField>
-                
-                <FormField name="passwordPolicyField" label-text="Password Policy:">
-                  <ComboBox name="passwordPolicyCombo" slot="input">
-                    <items>
-                      <item value="basic" text="Basic (6+ characters)" />
-                      <item value="standard" text="Standard (8+ chars, mixed case)" />
-                      <item value="strong" text="Strong (12+ chars, symbols)" />
-                      <item value="custom" text="Custom Policy" />
-                    </items>
-                  </ComboBox>
-                </FormField>
-                
-                <FormField name="twoFactorField" label-text="Two-Factor Authentication:">
-                  <ComboBox name="twoFactorCombo" slot="input">
-                    <items>
-                      <item value="disabled" text="Disabled" />
-                      <item value="optional" text="Optional" />
-                      <item value="required" text="Required" />
-                    </items>
-                  </ComboBox>
-                </FormField>
-              </Panel>
-            </tab>
+            <TextBlock grid-row="1" grid-column="0" text="Session Timeout:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Session timeout setting" />
+            <NumericUpDown name="sessionTimeout" grid-row="1" grid-column="1" 
+                           minimum="5" maximum="480" value="{Binding SessionTimeout, Mode=TwoWay}"
+                           suffix=" minutes" margin="0,10,0,0"
+                           aria-label="Set session timeout in minutes" />
             
-            <tab name="database" text="Database">
-              <Panel name="databaseSettings">
-                <FormField name="connectionStringField" label-text="Connection String:">
-                  <TextBox name="connectionStringInput" slot="input" multiline="true" />
-                </FormField>
-                
-                <FormField name="backupIntervalField" label-text="Backup Interval (hours):">
-                  <TextBox name="backupIntervalInput" slot="input" value="24" />
-                </FormField>
-                
-                <FormField name="queryTimeoutField" label-text="Query Timeout (seconds):">
-                  <TextBox name="queryTimeoutInput" slot="input" value="30" />
-                </FormField>
-                
-                <Panel name="databaseActions">
-                  <ButtonBar name="dbActionButtons" alignment="left">
-                    <Button name="testConnectionButton" text="Test Connection" />
-                    <Button name="backupNowButton" text="Backup Now" />
-                    <Button name="optimizeButton" text="Optimize Database" />
-                  </ButtonBar>
-                </Panel>
-              </Panel>
-            </tab>
-          </TabControl>
-          
-          <Panel name="settingsActions" height="60">
-            <ButtonBar name="settingsButtons" alignment="right">
-              <Button name="saveSettingsButton" text="Save Settings" style="primary" />
-              <Button name="cancelButton" text="Cancel" />
-              <Button name="resetToDefaultsButton" text="Reset to Defaults" style="secondary" />
-              <Button name="exportSettingsButton" text="Export" />
-              <Button name="importSettingsButton" text="Import" />
-            </ButtonBar>
-          </Panel>
-        </Panel>
-      </slot>
-      
-      <!-- Use default footer -->
-    </slot-overrides>
+            <TextBlock grid-row="2" grid-column="0" text="Audit Logging:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="Audit logging settings" />
+            <CheckBox name="auditLogging" grid-row="2" grid-column="1" 
+                      content="Enable audit logging" margin="0,10,0,0"
+                      is-checked="{Binding AuditLoggingEnabled, Mode=TwoWay}"
+                      aria-label="Enable security audit logging" />
+            
+            <TextBlock grid-row="3" grid-column="0" text="GDPR Compliance:" 
+                       vertical-alignment="Center" margin="0,10,0,0"
+                       aria-label="GDPR compliance settings" />
+            <StackPanel grid-row="3" grid-column="1" spacing="5" margin="0,10,0,0">
+              <CheckBox name="gdprMode" 
+                        content="GDPR compliance mode" 
+                        is-checked="{Binding GDPRComplianceEnabled, Mode=TwoWay}"
+                        aria-label="Enable GDPR compliance features" />
+              <Button name="dataExportButton" content="Export My Data" 
+                      command="{Binding ExportUserDataCommand}"
+                      aria-label="Export personal data" />
+            </StackPanel>
+          </Grid>
+        </StackPanel>
+      </TabItem>
+    </TabControl>
+    
+    <!-- Dialog Buttons -->
+    <StackPanel orientation="horizontal" horizontal-alignment="Right" 
+                spacing="10" margin="20">
+      <Button name="saveButton" content="Save Changes" 
+              command="{Binding SaveSettingsCommand}"
+              style="AccentButtonStyle"
+              aria-label="Save all settings changes" />
+      <Button name="cancelButton" content="Cancel" 
+              command="{Binding CancelCommand}"
+              aria-label="Cancel without saving changes" />
+      <Button name="resetButton" content="Reset to Defaults" 
+              command="{Binding ResetToDefaultsCommand}"
+              aria-label="Reset all settings to default values" />
+    </StackPanel>
   </window>
   
-</ui-layout-def>
-        
+</ui-layout-def>

+ 174 - 0
UILayoutDefinitionFormat/readme.md

@@ -404,6 +404,180 @@ ui-layout-migrate --from 1.2 --to 1.3 --input myapp.xml --output myapp-v13.xml
    - Set realistic performance targets
    - Monitor improvements after migration
 
+## Pattern Definitions
+
+### Enhanced Control Definitions
+
+```xml
+<patterns>
+  <control name="EnhancedTextBox" type="input" category="basic" schema-version="1.3">
+    <description>Enhanced text input with validation and accessibility</description>
+    <constraints>
+      <allowed-parents>Panel,FormField</allowed-parents>
+      <allowed-children>none</allowed-children>
+      <container>false</container>
+      <platform-constraints>
+        <platform-constraint platform="avalonia" min-version="11.0" />
+      </platform-constraints>
+      <performance-hints virtualization-supported="false" memory-intensive="false" />
+    </constraints>
+    <attributes>
+      <attribute name="text" type="string" default="" category="content" />
+      <attribute name="placeholder" type="string" default="" category="display" />
+      <attribute name="max-length" type="int" default="255" min="1" max="10000" category="validation" />
+      <attribute name="validation-pattern" type="string" default="" category="validation" />
+      <attribute name="aria-label" type="string" default="" category="accessibility" />
+      <attribute name="high-contrast-support" type="bool" default="true" category="accessibility" />
+    </attributes>
+    <validation>
+      <rule name="required-validation" type="required" message="This field is required" severity="error" />
+      <rule name="pattern-validation" type="pattern" pattern="{validation-pattern}" message="Invalid format" severity="warning" />
+    </validation>
+    <accessibility>
+      <requirement standard="wcag" level="aa" description="Keyboard accessible input" required="true" />
+      <requirement standard="section-508" level="aa" description="Screen reader compatible" required="true" />
+    </accessibility>
+    <data-binding supports-two-way="true" supports-commands="false" supports-validation="true">
+      <bindable-property name="Text" type="string" mode="TwoWay" dependency-property="true" />
+      <bindable-property name="IsValid" type="bool" mode="OneWay" default-value="true" />
+    </data-binding>
+    <behavior>
+      <event name="text-changed" async="false" cancelable="false" />
+      <event name="validation-error" async="false" accessibility-event="true" />
+      <command name="ClearCommand" can-execute-property="HasText" async="false" />
+      <gesture name="double-tap" type="double-tap" description="Select all text" />
+    </behavior>
+  </control>
+</patterns>
+```
+
+### Custom Validators
+
+```xml
+<validation-rules>
+  <custom-validator name="EmailValidator" version="1.0" category="business-rules">
+    <description>Validates email address format</description>
+    <implementation>
+      <rule-expression expression="matches(@text, '^[^@]+@[^@]+\.[^@]+$')" language="xpath" />
+    </implementation>
+    <parameter name="allow-empty" type="bool" default-value="false" description="Allow empty email addresses" />
+    <test-case name="valid-email" description="Should accept valid email">
+      <input>user@example.com</input>
+      <expected-result>pass</expected-result>
+    </test-case>
+    <test-case name="invalid-email" description="Should reject invalid email">
+      <input>invalid-email</input>
+      <expected-result>fail</expected-result>
+      <expected-message>Invalid email format</expected-message>
+    </test-case>
+  </custom-validator>
+  
+  <validation-profile name="ProductionProfile" version="1.0" target-platform="avalonia">
+    <description>Production-ready validation profile with comprehensive checks</description>
+    <profile-rule rule-name="EmailValidator" enabled="true" severity="error" />
+    <profile-rule rule-name="AccessibilityValidator" enabled="true" severity="warning" />
+    <profile-group group-name="SecurityValidation" enabled="true" override-severity="error" />
+    <configuration stop-on-first-error="false" max-errors="50" parallel-execution="true">
+      <setting key="strict-mode" value="true" scope="profile" />
+      <exclusion pattern="*.test.xml" type="file" reason="Test files excluded from production validation" />
+    </configuration>
+  </validation-profile>
+</validation-rules>
+```
+
+## Advanced View Definitions
+
+### Modern Business View
+
+```xml
+<views>
+  <view name="ModernProductView" type="ai-assisted" category="ai-enhanced" 
+        schema-version="1.3" platform="avalonia" singleton="false" lazy-loading="true">
+    <description>AI-enhanced product management with real-time collaboration</description>
+    
+    <metadata>
+      <author>Development Team</author>
+      <version>2.1.0</version>
+      <created-date>2024-01-15</created-date>
+      <documentation-url>https://docs.company.com/product-view</documentation-url>
+      <tags>
+        <tag>ai-enhanced</tag>
+        <tag>real-time</tag>
+        <tag>collaborative</tag>
+      </tags>
+    </metadata>
+    
+    <state-management pattern="redux" persistence="distributed">
+      <state name="initializing" initial="true" data-snapshot="InitState" />
+      <state name="loading" final="false" data-snapshot="LoadingState" />
+      <state name="ready" final="false" data-snapshot="ReadyState" />
+      <state name="error" final="false" data-snapshot="ErrorState" />
+      <transition from="initializing" to="loading" trigger="start-load" action="beginLoad" />
+      <transition from="loading" to="ready" trigger="load-complete" condition="data.isValid" action="finalizeLoad" />
+      <transition from="loading" to="error" trigger="load-failed" action="handleError" />
+    </state-management>
+    
+    <accessibility level="aaa" tested="true">
+      <compliance standard="wcag" level="aaa" verified="true" />
+      <compliance standard="section-508" level="aa" verified="true" />
+      <feature name="screen-reader" type="screen-reader" required="true" implementation="NVDA,JAWS,VoiceOver" />
+      <feature name="voice-control" type="voice-control" required="false" implementation="Dragon,Windows Speech" />
+      <feature name="high-contrast" type="high-contrast" required="true" />
+      <feature name="magnification" type="magnification" required="true" />
+    </accessibility>
+    
+    <performance target-load-time="1000" memory-limit="100MB">
+      <metric name="first-contentful-paint" type="load-time" target="800ms" critical="true" />
+      <metric name="memory-usage" type="memory-usage" target="50MB" critical="false" />
+      <optimization technique="lazy-loading" description="Load product data on demand" impact="high" />
+      <optimization technique="virtualization" description="Virtualize large product lists" impact="medium" />
+    </performance>
+    
+    <security level="high" audit-required="true">
+      <permission name="product-read" type="read" required="true" scope="view" />
+      <permission name="product-write" type="write" required="false" scope="data" />
+      <permission name="product-admin" type="admin" required="false" scope="global" />
+      <vulnerability-protection type="xss" protection="input-sanitization" severity="high" />
+      <vulnerability-protection type="injection" protection="parameterized-queries" severity="critical" />
+      <data-protection encryption="true" gdpr-compliant="true" />
+    </security>
+    
+    <localization default-culture="en-US" rtl-support="true">
+      <supported-culture code="ar-SA" name="Arabic (Saudi Arabia)" completion="85" verified="false" />
+      <supported-culture code="he-IL" name="Hebrew (Israel)" completion="90" verified="true" />
+      <supported-culture code="zh-CN" name="Chinese (Simplified)" completion="95" verified="true" />
+      <resource-bundle name="ProductResources" path="Resources/Products" type="resx" />
+      <resource-bundle name="CommonResources" path="Resources/Common" type="json" />
+    </localization>
+    
+    <testing coverage-target="95" strategy="e2e">
+      <test-scenario name="create-product" type="functional" priority="high" automated="true">
+        <step action="click-new-product" expected="product-form-displayed" />
+        <step action="enter-product-name" data="Test Product" expected="name-field-filled" />
+        <step action="click-save" expected="product-saved-successfully" />
+      </test-scenario>
+      <test-scenario name="accessibility-navigation" type="accessibility" priority="high" automated="true">
+        <step action="tab-navigation" expected="all-controls-reachable" />
+        <step action="screen-reader-test" expected="proper-announcements" />
+      </test-scenario>
+      <automation framework="playwright" selector-strategy="accessibility" page-object-model="true" />
+    </testing>
+    
+    <dependencies>
+      <service-ref name="ProductService" interface="IProductService" scope="scoped" required="true" />
+      <service-ref name="AIRecommendationService" interface="IAIService" scope="singleton" required="false" />
+      <library-ref name="ChartingLibrary" version="2.1.0" source="nuget" optional="false" />
+    </dependencies>
+    
+    <communication>
+      <real-time>
+        <connection name="product-updates" protocol="signalr" endpoint="/productHub" auto-reconnect="true" />
+      </real-time>
+    </communication>
+  </view>
+</views>
+```
+
 ---
 
 *This format specification v1.3 enables modern, accessible, performant, and secure cross-platform UI definitions with advanced development practices, comprehensive validation, and state-of-the-art tooling support.*

+ 149 - 183
UILayoutDefinitionFormat/ui-layout-def.xsd

@@ -25,25 +25,6 @@
   <!-- Root element for window include files -->
   <xs:element name="windows" type="tns:WindowIncludeFileType"/>
 
-  <!-- Main document structure -->
-  <xs:complexType name="UILayoutDefType">
-    <xs:sequence>
-      <xs:element name="validation-rules" type="tns:ValidationRulesType" minOccurs="0"/>
-      <xs:element name="patterns" type="tns:PatternsType"/>
-      <xs:element name="views" type="tns:ViewsType" minOccurs="0"/>
-      <xs:element name="window-includes" type="tns:WindowIncludesType" minOccurs="0"/>
-      <xs:element name="window" type="tns:WindowType" minOccurs="0" maxOccurs="unbounded"/>
-    </xs:sequence>
-    <xs:attribute name="version" type="xs:string" default="1.2"/>
-    <!-- ENHANCEMENT: Version compatibility attributes -->
-    <xs:attribute name="schema-version" type="xs:string" fixed="1.2"/>
-    <xs:attribute name="min-version" type="xs:string" default="1.0"/>
-    <xs:attribute name="max-version" type="xs:string" default="2.0"/>
-    <xs:attribute name="target-platform" type="tns:PlatformEnum" default="basic"/>
-    <!-- ENHANCEMENT: Accessibility compliance level -->
-    <xs:attribute name="accessibility-compliance" type="tns:AccessibilityLevelEnum" default="basic"/>
-  </xs:complexType>
-
   <!-- Platform Enumeration -->
   <xs:simpleType name="PlatformEnum">
     <xs:restriction base="xs:string">
@@ -57,61 +38,63 @@
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- ENHANCEMENT: Accessibility Level Enumeration -->
+  <!-- Accessibility Level Enumeration -->
   <xs:simpleType name="AccessibilityLevelEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="none"/>
       <xs:enumeration value="basic"/>
       <xs:enumeration value="wcag-a"/>
       <xs:enumeration value="wcag-aa"/>
       <xs:enumeration value="wcag-aaa"/>
       <xs:enumeration value="section-508"/>
+      <xs:enumeration value="ada"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- Window Include Files Structure -->
-  <xs:complexType name="WindowIncludeFileType">
+  <!-- Main document structure -->
+  <xs:complexType name="UILayoutDefType">
     <xs:sequence>
-      <xs:element name="window" type="tns:WindowType" maxOccurs="unbounded"/>
+      <xs:element name="validation-rules" type="tns:ValidationRulesType" minOccurs="0"/>
+      <xs:element name="patterns" type="tns:PatternsType"/>
+      <xs:element name="views" type="tns:ViewsType" minOccurs="0"/>
+      <xs:element name="window-includes" type="tns:WindowIncludesType" minOccurs="0"/>
+      <xs:element name="window" type="tns:WindowType" minOccurs="0" maxOccurs="unbounded"/>
     </xs:sequence>
+    <xs:attribute name="version" type="xs:string" default="1.3"/>
+    <xs:attribute name="schema-version" type="xs:string" fixed="1.3"/>
+    <xs:attribute name="min-version" type="xs:string" default="1.0"/>
+    <xs:attribute name="max-version" type="xs:string" default="2.0"/>
     <xs:attribute name="target-platform" type="tns:PlatformEnum" default="basic"/>
-    <!-- ENHANCEMENT: Version tracking for include files -->
-    <xs:attribute name="schema-version" type="xs:string" default="1.2"/>
+    <xs:attribute name="accessibility-compliance" type="tns:AccessibilityLevelEnum" default="basic"/>
   </xs:complexType>
 
-  <!-- Window Includes -->
-  <xs:complexType name="WindowIncludesType">
+  <!-- Window Include File Type -->
+  <xs:complexType name="WindowIncludeFileType">
     <xs:sequence>
-      <xs:element name="window-include" type="tns:WindowIncludeType" minOccurs="0" maxOccurs="unbounded"/>
+      <xs:element name="window" type="tns:WindowType" minOccurs="0" maxOccurs="unbounded"/>
     </xs:sequence>
+    <xs:attribute name="schema-version" type="xs:string" default="1.3"/>
+    <xs:attribute name="target-platform" type="tns:PlatformEnum" default="basic"/>
   </xs:complexType>
 
-  <xs:complexType name="WindowIncludeType">
-    <xs:attribute name="src" type="xs:string" use="required"/>
-    <xs:attribute name="important" type="xs:boolean" default="false"/>
-    <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
-    <!-- ENHANCEMENT: Version constraints for includes -->
-    <xs:attribute name="min-version" type="xs:string"/>
-    <xs:attribute name="max-version" type="xs:string"/>
-  </xs:complexType>
-
-  <!-- Validation Rules (simplified - just includes) -->
+  <!-- Validation Rules Type -->
   <xs:complexType name="ValidationRulesType">
     <xs:sequence>
       <xs:element name="validation-include" type="tns:ValidationIncludeType" minOccurs="0" maxOccurs="unbounded"/>
       <xs:element name="rule" type="validation:ValidationRuleType" minOccurs="0" maxOccurs="unbounded"/>
+      <xs:element name="custom-validator" type="validation:CustomValidatorType" minOccurs="0" maxOccurs="unbounded"/>
+      <xs:element name="validation-profile" type="validation:ValidationProfileType" minOccurs="0" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
 
+  <!-- Validation Include Type -->
   <xs:complexType name="ValidationIncludeType">
     <xs:attribute name="src" type="xs:string" use="required"/>
     <xs:attribute name="important" type="xs:boolean" default="false"/>
-    <!-- ENHANCEMENT: Version constraints -->
     <xs:attribute name="min-version" type="xs:string"/>
     <xs:attribute name="max-version" type="xs:string"/>
   </xs:complexType>
 
-  <!-- Patterns (simplified - mainly includes) -->
+  <!-- Patterns Type -->
   <xs:complexType name="PatternsType">
     <xs:sequence>
       <xs:element name="pattern-include" type="tns:PatternIncludeType" minOccurs="0" maxOccurs="unbounded"/>
@@ -123,16 +106,16 @@
     </xs:sequence>
   </xs:complexType>
 
+  <!-- Pattern Include Type -->
   <xs:complexType name="PatternIncludeType">
     <xs:attribute name="src" type="xs:string" use="required"/>
     <xs:attribute name="important" type="xs:boolean" default="false"/>
     <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
-    <!-- ENHANCEMENT: Version constraints -->
     <xs:attribute name="min-version" type="xs:string"/>
     <xs:attribute name="max-version" type="xs:string"/>
   </xs:complexType>
 
-  <!-- Views (simplified - mainly includes) -->
+  <!-- Views Type -->
   <xs:complexType name="ViewsType">
     <xs:sequence>
       <xs:element name="view-include" type="tns:ViewIncludeType" minOccurs="0" maxOccurs="unbounded"/>
@@ -140,74 +123,153 @@
     </xs:sequence>
   </xs:complexType>
 
+  <!-- View Include Type -->
   <xs:complexType name="ViewIncludeType">
     <xs:attribute name="src" type="xs:string" use="required"/>
     <xs:attribute name="important" type="xs:boolean" default="false"/>
-    <!-- ENHANCEMENT: Version constraints -->
     <xs:attribute name="min-version" type="xs:string"/>
     <xs:attribute name="max-version" type="xs:string"/>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Window Definition with data binding and accessibility -->
+  <!-- Window Includes Type -->
+  <xs:complexType name="WindowIncludesType">
+    <xs:sequence>
+      <xs:element name="window-include" type="tns:WindowIncludeType" minOccurs="0" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+
+  <!-- Window Include Type -->
+  <xs:complexType name="WindowIncludeType">
+    <xs:attribute name="src" type="xs:string" use="required"/>
+    <xs:attribute name="important" type="xs:boolean" default="false"/>
+    <xs:attribute name="min-version" type="xs:string"/>
+    <xs:attribute name="max-version" type="xs:string"/>
+  </xs:complexType>
+
+  <!-- FIXED: Window Template Type -->
+  <xs:complexType name="WindowTemplateType" mixed="true">
+    <xs:choice minOccurs="0" maxOccurs="unbounded">
+      <!-- Basic Controls -->
+      <xs:element name="Label" type="tns:WindowControlInstanceType"/>
+      <xs:element name="TextBox" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ComboBox" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Button" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Panel" type="tns:WindowControlInstanceType"/>
+      <xs:element name="PopupPanel" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Menu" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ListView" type="tns:WindowControlInstanceType"/>
+      <xs:element name="TreeView" type="tns:WindowControlInstanceType"/>
+      <xs:element name="TabControl" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ButtonBar" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ListBox" type="tns:WindowControlInstanceType"/>
+      <xs:element name="CheckBox" type="tns:WindowControlInstanceType"/>
+      <xs:element name="RadioButton" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Image" type="tns:WindowControlInstanceType"/>
+      <xs:element name="StatusBar" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ToolBar" type="tns:WindowControlInstanceType"/>
+      <xs:element name="SplitPanel" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Separator" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ProgressBar" type="tns:WindowControlInstanceType"/>
+      <xs:element name="DatePicker" type="tns:WindowControlInstanceType"/>
+      <xs:element name="NumericUpDown" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Slider" type="tns:WindowControlInstanceType"/>
+      <xs:element name="FormField" type="tns:WindowControlInstanceType"/>
+    </xs:choice>
+  </xs:complexType>
+
+  <!-- FIXED: Window Control Instance Type -->
+  <xs:complexType name="WindowControlInstanceType" mixed="true">
+    <xs:choice minOccurs="0" maxOccurs="unbounded">
+      <!-- Allow nested controls -->
+      <xs:element name="Label" type="tns:WindowControlInstanceType"/>
+      <xs:element name="TextBox" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ComboBox" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Button" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Panel" type="tns:WindowControlInstanceType"/>
+      <xs:element name="PopupPanel" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Menu" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ListView" type="tns:WindowControlInstanceType"/>
+      <xs:element name="TreeView" type="tns:WindowControlInstanceType"/>
+      <xs:element name="TabControl" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ButtonBar" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ListBox" type="tns:WindowControlInstanceType"/>
+      <xs:element name="CheckBox" type="tns:WindowControlInstanceType"/>
+      <xs:element name="RadioButton" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Image" type="tns:WindowControlInstanceType"/>
+      <xs:element name="StatusBar" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ToolBar" type="tns:WindowControlInstanceType"/>
+      <xs:element name="SplitPanel" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Separator" type="tns:WindowControlInstanceType"/>
+      <xs:element name="ProgressBar" type="tns:WindowControlInstanceType"/>
+      <xs:element name="DatePicker" type="tns:WindowControlInstanceType"/>
+      <xs:element name="NumericUpDown" type="tns:WindowControlInstanceType"/>
+      <xs:element name="Slider" type="tns:WindowControlInstanceType"/>
+      <xs:element name="FormField" type="tns:WindowControlInstanceType"/>
+    </xs:choice>
+    <xs:anyAttribute processContents="lax"/>
+  </xs:complexType>
+
+  <!-- FIXED: Window Definition -->
   <xs:complexType name="WindowType">
     <xs:sequence>
       <xs:element name="attributes" type="tns:WindowAttributesType" minOccurs="0"/>
       <xs:element name="view-properties" type="tns:ViewPropertiesType" minOccurs="0"/>
-      <!-- ENHANCEMENT: Data binding support -->
       <xs:element name="data-binding" type="tns:DataBindingType" minOccurs="0"/>
-      <!-- ENHANCEMENT: Accessibility configuration -->
       <xs:element name="accessibility" type="tns:AccessibilityType" minOccurs="0"/>
       <xs:choice>
-        <xs:element name="slot-overrides" type="tns:SlotOverridesType"/>
-        <xs:element name="wireframe-instance" type="tns:WireframeInstanceType"/>
-        <xs:group ref="tns:PlatformControlContentGroup"/>
+        <xs:element name="template" type="tns:WindowTemplateType"/>
+        <xs:element name="structure-ref" type="tns:StructureRefType"/>
       </xs:choice>
     </xs:sequence>
     <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="title" type="xs:string" use="required"/>
-    <xs:attribute name="wireframe" type="xs:string"/>
-    <xs:attribute name="view" type="xs:string"/>
-    <xs:attribute name="target-platform" type="tns:PlatformEnum" default="basic"/>
-    <!-- ENHANCEMENT: Schema version tracking -->
-    <xs:attribute name="schema-version" type="xs:string" default="1.2"/>
+    <xs:attribute name="inherits" type="xs:string"/>
+    <xs:attribute name="schema-version" type="xs:string" default="1.3"/>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Data Binding Support -->
-  <xs:complexType name="DataBindingType">
+  <!-- Window Attributes Type -->
+  <xs:complexType name="WindowAttributesType">
     <xs:sequence>
-      <xs:element name="data-context" type="tns:DataContextBindingType" minOccurs="0"/>
-      <xs:element name="view-model" type="tns:ViewModelBindingType" minOccurs="0"/>
-      <xs:element name="binding-properties" type="tns:BindingPropertiesType" minOccurs="0"/>
+      <xs:element name="attribute" type="tns:WindowAttributeType" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
 
-  <xs:complexType name="DataContextBindingType">
-    <xs:attribute name="source" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="xs:string"/>
-    <xs:attribute name="mode" type="tns:BindingModeEnum" default="TwoWay"/>
+  <!-- Window Attribute Type -->
+  <xs:complexType name="WindowAttributeType">
+    <xs:attribute name="name" type="xs:string" use="required"/>
+    <xs:attribute name="value" type="xs:string" use="required"/>
+    <xs:attribute name="override" type="xs:boolean" default="false"/>
   </xs:complexType>
 
-  <xs:complexType name="ViewModelBindingType">
-    <xs:attribute name="class" type="xs:string" use="required"/>
-    <xs:attribute name="assembly" type="xs:string"/>
-    <xs:attribute name="namespace" type="xs:string"/>
+  <!-- View Properties Type -->
+  <xs:complexType name="ViewPropertiesType">
+    <xs:sequence>
+      <xs:element name="property" type="tns:ViewPropertyType" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+
+  <!-- View Property Type -->
+  <xs:complexType name="ViewPropertyType">
+    <xs:attribute name="name" type="xs:string" use="required"/>
+    <xs:attribute name="value" type="xs:string" use="required"/>
+    <xs:attribute name="type" type="xs:string" default="string"/>
   </xs:complexType>
 
-  <xs:complexType name="BindingPropertiesType">
+  <!-- Data Binding Type -->
+  <xs:complexType name="DataBindingType">
     <xs:sequence>
-      <xs:element name="property" type="tns:BindingPropertyType" maxOccurs="unbounded"/>
+      <xs:element name="binding" type="tns:BindingType" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
 
-  <xs:complexType name="BindingPropertyType">
-    <xs:attribute name="control" type="xs:string" use="required"/>
-    <xs:attribute name="property" type="xs:string" use="required"/>
-    <xs:attribute name="binding-path" type="xs:string" use="required"/>
-    <xs:attribute name="mode" type="tns:BindingModeEnum" default="TwoWay"/>
+  <!-- Binding Type -->
+  <xs:complexType name="BindingType">
+    <xs:attribute name="source" type="xs:string" use="required"/>
+    <xs:attribute name="target" type="xs:string" use="required"/>
+    <xs:attribute name="mode" type="tns:BindingModeEnum" default="OneWay"/>
     <xs:attribute name="converter" type="xs:string"/>
-    <xs:attribute name="validation-rule" type="xs:string"/>
   </xs:complexType>
 
+  <!-- Binding Mode Enumeration -->
   <xs:simpleType name="BindingModeEnum">
     <xs:restriction base="xs:string">
       <xs:enumeration value="OneWay"/>
@@ -217,122 +279,26 @@
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- ENHANCEMENT: Accessibility Support -->
+  <!-- Accessibility Type -->
   <xs:complexType name="AccessibilityType">
     <xs:sequence>
-      <xs:element name="screen-reader" type="tns:ScreenReaderType" minOccurs="0"/>
-      <xs:element name="keyboard-navigation" type="tns:KeyboardNavigationType" minOccurs="0"/>
-      <xs:element name="color-contrast" type="tns:ColorContrastType" minOccurs="0"/>
+      <xs:element name="requirement" type="tns:AccessibilityRequirementType" maxOccurs="unbounded"/>
     </xs:sequence>
     <xs:attribute name="compliance-level" type="tns:AccessibilityLevelEnum" default="basic"/>
   </xs:complexType>
 
-  <xs:complexType name="ScreenReaderType">
-    <xs:attribute name="window-title" type="xs:string"/>
+  <!-- Accessibility Requirement Type -->
+  <xs:complexType name="AccessibilityRequirementType">
+    <xs:attribute name="standard" type="xs:string" use="required"/>
+    <xs:attribute name="level" type="xs:string" use="required"/>
     <xs:attribute name="description" type="xs:string"/>
-    <xs:attribute name="landmark-role" type="xs:string"/>
-  </xs:complexType>
-
-  <xs:complexType name="KeyboardNavigationType">
-    <xs:attribute name="tab-order-start" type="xs:int" default="0"/>
-    <xs:attribute name="focus-trap" type="xs:boolean" default="false"/>
-    <xs:attribute name="escape-closes" type="xs:boolean" default="true"/>
-  </xs:complexType>
-
-  <xs:complexType name="ColorContrastType">
-    <xs:attribute name="high-contrast-support" type="xs:boolean" default="true"/>
-    <xs:attribute name="minimum-ratio" type="xs:decimal" default="4.5"/>
+    <xs:attribute name="required" type="xs:boolean" default="true"/>
   </xs:complexType>
 
-  <!-- Window Attributes -->
-  <xs:complexType name="WindowAttributesType">
-    <xs:sequence>
-      <xs:element name="attribute" maxOccurs="unbounded">
-        <xs:complexType>
-          <xs:attribute name="name" type="xs:string" use="required"/>
-          <xs:attribute name="value" type="xs:string" use="required"/>
-        </xs:complexType>
-      </xs:element>
-    </xs:sequence>
-  </xs:complexType>
-
-  <!-- View Properties -->
-  <xs:complexType name="ViewPropertiesType">
-    <xs:sequence>
-      <xs:element name="role" type="views:WindowRoleEnum"/>
-      <xs:element name="default" type="xs:boolean" minOccurs="0"/>
-      <xs:element name="modal" type="xs:boolean" minOccurs="0"/>
-      <xs:element name="data-context-binding" type="xs:string" minOccurs="0"/>
-      <xs:element name="parent-window" type="xs:string" minOccurs="0"/>
-    </xs:sequence>
-  </xs:complexType>
-
-  <!-- ENHANCED: Slot Overrides with conditional visibility -->
-  <xs:complexType name="SlotOverridesType">
-    <xs:sequence>
-      <xs:element name="slot" type="tns:SlotOverrideType" maxOccurs="unbounded"/>
-    </xs:sequence>
-  </xs:complexType>
-
-  <!-- ENHANCED: Slot Override Type with conditional visibility attributes -->
-  <xs:complexType name="SlotOverrideType">
-    <xs:complexContent>
-      <xs:extension base="tns:PlatformControlContentType">
-        <xs:attribute name="name" type="xs:string" use="required"/>
-        
-        <!-- NEW: Conditional visibility attributes for slot overrides -->
-        <xs:attribute name="visibility-binding" type="xs:string"/>
-        <xs:attribute name="visibility-value" type="xs:string"/>
-      </xs:extension>
-    </xs:complexContent>
-  </xs:complexType>
-
-  <!-- Wireframe Instance -->
-  <xs:complexType name="WireframeInstanceType">
-    <xs:sequence>
-      <xs:element name="slot" type="tns:SlotOverrideType" maxOccurs="unbounded"/>
-    </xs:sequence>
+  <!-- Structure Reference Type -->
+  <xs:complexType name="StructureRefType">
     <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="wireframe" type="xs:string" use="required"/>
-  </xs:complexType>
-
-  <!-- Platform-Aware Control Content -->
-  <xs:complexType name="PlatformControlContentType" mixed="true">
-    <xs:group ref="tns:PlatformControlContentGroup" minOccurs="0" maxOccurs="unbounded"/>
-    <xs:anyAttribute processContents="lax"/>
-  </xs:complexType>
-
-  <!-- Platform Control Content Group - Supports all platforms -->
-  <xs:group name="PlatformControlContentGroup">
-    <xs:choice>
-      <!-- Basic Controls (always available) -->
-      <xs:group ref="basic:BasicControlContentGroup"/>
-      
-      <!-- WinForms Controls (conditional) -->
-      <xs:group ref="winforms:WinFormsControlContentGroup"/>
-      
-      <!-- Avalonia Controls (conditional) -->
-      <xs:group ref="avalonia:AvaloniaControlContentGroup"/>
-      
-      <!-- Special Elements -->
-      <xs:element name="wireframe-instance" type="tns:WireframeInstanceType"/>
-      
-      <!-- Allow any other elements for extensibility -->
-      <xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
-    </xs:choice>
-  </xs:group>
-
-  <!-- Control Instance (unified across platforms) -->
-  <xs:complexType name="ControlInstanceType">
-    <xs:complexContent>
-      <xs:extension base="tns:PlatformControlContentType">
-        <xs:attribute name="name" type="xs:string" use="required"/>
-        <xs:attribute name="slot" type="xs:string"/>
-        <xs:attribute name="platform-hint" type="tns:PlatformEnum"/>
-        <!-- ENHANCEMENT: Schema version tracking -->
-        <xs:attribute name="schema-version" type="xs:string" default="1.2"/>
-      </xs:extension>
-    </xs:complexContent>
+    <xs:attribute name="override-attributes" type="xs:string"/>
   </xs:complexType>
 
 </xs:schema>

+ 209 - 407
UILayoutDefinitionFormat/ui-layout-patterns.xsd

@@ -20,7 +20,7 @@
     <xs:attribute name="target-platform" type="tns:PlatformEnum" default="basic"/>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Platform Enumeration -->
+  <!-- Platform Enumeration -->
   <xs:simpleType name="PlatformEnum">
     <xs:restriction base="xs:string">
       <xs:enumeration value="basic"/>
@@ -53,174 +53,163 @@
     <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
     <!-- ENHANCEMENT: Version tracking -->
     <xs:attribute name="schema-version" type="xs:string" default="1.3"/>
-    <xs:attribute name="deprecated" type="xs:boolean" default="false"/>
-    <xs:attribute name="replaced-by" type="xs:string"/>
   </xs:complexType>
 
   <!-- Control Type Enumeration -->
   <xs:simpleType name="ControlTypeEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="base"/>
-      <xs:enumeration value="action"/>
-      <xs:enumeration value="input"/>
       <xs:enumeration value="display"/>
+      <xs:enumeration value="input"/>
+      <xs:enumeration value="button"/>
       <xs:enumeration value="container"/>
+      <xs:enumeration value="menu"/>
+      <xs:enumeration value="list"/>
+      <xs:enumeration value="tree"/>
       <xs:enumeration value="data"/>
-      <xs:enumeration value="navigation"/>
-      <xs:enumeration value="system"/>
       <xs:enumeration value="dialog"/>
-      <xs:enumeration value="layout"/>
+      <xs:enumeration value="system"/>
       <xs:enumeration value="media"/>
-      <xs:enumeration value="decoration"/>
-      <!-- ENHANCEMENT: New control types -->
+      <xs:enumeration value="navigation"/>
       <xs:enumeration value="composite"/>
-      <xs:enumeration value="virtual"/>
-      <xs:enumeration value="utility"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- ENHANCEMENT: Expanded Control Category Enumeration -->
+  <!-- Control Category Enumeration -->
   <xs:simpleType name="ControlCategoryEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="abstract"/>
       <xs:enumeration value="basic"/>
-      <xs:enumeration value="input"/>
-      <xs:enumeration value="action"/>
-      <xs:enumeration value="layout"/>
-      <xs:enumeration value="data"/>
-      <xs:enumeration value="navigation"/>
-      <xs:enumeration value="composite"/>
-      <xs:enumeration value="windows-specific"/>
       <xs:enumeration value="winforms-basic"/>
       <xs:enumeration value="winforms-input"/>
-      <xs:enumeration value="winforms-action"/>
-      <xs:enumeration value="winforms-container"/>
       <xs:enumeration value="winforms-data"/>
-      <xs:enumeration value="winforms-status"/>
+      <xs:enumeration value="winforms-dialog"/>
+      <xs:enumeration value="winforms-layout"/>
       <xs:enumeration value="winforms-menu"/>
       <xs:enumeration value="winforms-toolbar"/>
-      <xs:enumeration value="winforms-scroll"/>
-      <xs:enumeration value="winforms-display"/>
       <xs:enumeration value="winforms-system"/>
-      <xs:enumeration value="winforms-validation"/>
-      <xs:enumeration value="winforms-dialog"/>
       <xs:enumeration value="winforms-web"/>
-      <xs:enumeration value="avalonia-specific"/>
-      <xs:enumeration value="avalonia-layout"/>
+      <xs:enumeration value="avalonia-basic"/>
       <xs:enumeration value="avalonia-input"/>
-      <xs:enumeration value="avalonia-display"/>
+      <xs:enumeration value="avalonia-layout"/>
       <xs:enumeration value="avalonia-data"/>
-      <xs:enumeration value="avalonia-container"/>
-      <xs:enumeration value="avalonia-decoration"/>
+      <xs:enumeration value="avalonia-media"/>
       <xs:enumeration value="avalonia-navigation"/>
       <xs:enumeration value="avalonia-popup"/>
       <xs:enumeration value="avalonia-window"/>
-      <xs:enumeration value="avalonia-media"/>
       <xs:enumeration value="avalonia-notification"/>
       <xs:enumeration value="avalonia-composite"/>
       <xs:enumeration value="avalonia-graphics"/>
       <xs:enumeration value="kde-specific"/>
       <xs:enumeration value="web-specific"/>
       <xs:enumeration value="mobile-specific"/>
-      <!-- ENHANCEMENT: v1.3 new categories -->
       <xs:enumeration value="virtualization"/>
       <xs:enumeration value="ai-enhanced"/>
       <xs:enumeration value="accessibility-specialized"/>
+      <xs:enumeration value="layout"/>
+      <xs:enumeration value="composite"/>
+      <xs:enumeration value="abstract"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- ENHANCEMENT: Validation Rules Type -->
-  <xs:complexType name="ValidationRulesType">
+  <!-- Structure Definition -->
+  <xs:complexType name="StructureType">
     <xs:sequence>
-      <xs:element name="rule" type="tns:ValidationRuleType" maxOccurs="unbounded"/>
+      <xs:element name="description" type="xs:string" minOccurs="0"/>
+      <xs:element name="constraints" type="tns:ConstraintsType" minOccurs="0"/>
+      <xs:element name="attributes" type="tns:AttributesType" minOccurs="0"/>
+      <xs:element name="template" type="tns:TemplateType"/>
+      <!-- ENHANCEMENT: v1.3 structure enhancements -->
+      <xs:element name="composition" type="tns:CompositionType" minOccurs="0"/>
     </xs:sequence>
+    <xs:attribute name="name" type="xs:string" use="required"/>
+    <xs:attribute name="type" type="xs:string" use="required"/>
+    <xs:attribute name="category" type="tns:ControlCategoryEnum" use="required"/>
+    <xs:attribute name="inherits" type="xs:string"/>
+    <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
+    <!-- ENHANCEMENT: Version tracking -->
+    <xs:attribute name="schema-version" type="xs:string" default="1.3"/>
   </xs:complexType>
 
-  <xs:complexType name="ValidationRuleType">
-    <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="tns:ValidationTypeEnum" use="required"/>
-    <xs:attribute name="pattern" type="xs:string"/>
-    <xs:attribute name="message" type="xs:string"/>
-    <xs:attribute name="severity" type="tns:ValidationSeverityEnum" default="error"/>
+  <!-- Composition Type -->
+  <xs:complexType name="CompositionType">
+    <xs:sequence>
+      <xs:element name="component" type="tns:ComponentType" maxOccurs="unbounded"/>
+    </xs:sequence>
   </xs:complexType>
 
-  <xs:simpleType name="ValidationTypeEnum">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="required"/>
-      <xs:enumeration value="pattern"/>
-      <xs:enumeration value="range"/>
-      <xs:enumeration value="length"/>
-      <xs:enumeration value="custom"/>
-      <xs:enumeration value="email"/>
-      <xs:enumeration value="url"/>
-      <xs:enumeration value="number"/>
-      <xs:enumeration value="date"/>
-    </xs:restriction>
-  </xs:simpleType>
+  <xs:complexType name="ComponentType">
+    <xs:attribute name="name" type="xs:string" use="required"/>
+    <xs:attribute name="type" type="xs:string" use="required"/>
+    <xs:attribute name="required" type="xs:boolean" default="false"/>
+    <xs:attribute name="multiple" type="xs:boolean" default="false"/>
+  </xs:complexType>
 
-  <xs:simpleType name="ValidationSeverityEnum">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="error"/>
-      <xs:enumeration value="warning"/>
-      <xs:enumeration value="info"/>
-    </xs:restriction>
-  </xs:simpleType>
+  <!-- Wireframe Definition -->
+  <xs:complexType name="WireframeType">
+    <xs:sequence>
+      <xs:element name="description" type="xs:string" minOccurs="0"/>
+      <xs:element name="template" type="tns:TemplateType"/>
+      <!-- ENHANCEMENT: v1.3 wireframe enhancements -->
+      <xs:element name="responsive" type="tns:ResponsiveType" minOccurs="0"/>
+      <xs:element name="theme-support" type="tns:ThemeSupportType" minOccurs="0"/>
+    </xs:sequence>
+    <xs:attribute name="name" type="xs:string" use="required"/>
+    <xs:attribute name="type" type="xs:string" use="required"/>
+    <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
+    <xs:attribute name="schema-version" type="xs:string" default="1.3"/>
+  </xs:complexType>
 
-  <!-- ENHANCEMENT: Accessibility Requirements Type -->
-  <xs:complexType name="AccessibilityRequirementsType">
+  <!-- FIXED: Responsive Type -->
+  <xs:complexType name="ResponsiveType">
     <xs:sequence>
-      <xs:element name="requirement" type="tns:AccessibilityRequirementType" maxOccurs="unbounded"/>
+      <xs:element name="breakpoint" type="tns:BreakpointType" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
 
-  <xs:complexType name="AccessibilityRequirementType">
-    <xs:attribute name="standard" type="tns:AccessibilityStandardEnum" use="required"/>
-    <xs:attribute name="level" type="tns:AccessibilityLevelEnum" use="required"/>
+  <!-- FIXED: Complete BreakpointType Definition -->
+  <xs:complexType name="BreakpointType">
+    <xs:attribute name="name" type="xs:string" use="required"/>
+    <xs:attribute name="min-width" type="xs:int" use="required"/>
+    <xs:attribute name="max-width" type="xs:int"/>
+    <xs:attribute name="orientation" type="tns:OrientationEnum" default="any"/>
+    <xs:attribute name="density" type="xs:string"/>
+    <xs:attribute name="platform" type="tns:PlatformEnum"/>
     <xs:attribute name="description" type="xs:string"/>
-    <xs:attribute name="required" type="xs:boolean" default="true"/>
   </xs:complexType>
 
-  <xs:simpleType name="AccessibilityStandardEnum">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="wcag"/>
-      <xs:enumeration value="section-508"/>
-      <xs:enumeration value="ada"/>
-      <xs:enumeration value="en-301-549"/>
-    </xs:restriction>
-  </xs:simpleType>
-
-  <xs:simpleType name="AccessibilityLevelEnum">
+  <!-- Orientation Enumeration -->
+  <xs:simpleType name="OrientationEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="a"/>
-      <xs:enumeration value="aa"/>
-      <xs:enumeration value="aaa"/>
+      <xs:enumeration value="portrait"/>
+      <xs:enumeration value="landscape"/>
+      <xs:enumeration value="any"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- ENHANCEMENT: Data Binding Capabilities Type -->
-  <xs:complexType name="DataBindingCapabilitiesType">
+  <!-- FIXED: Theme Support Type -->
+  <xs:complexType name="ThemeSupportType">
     <xs:sequence>
-      <xs:element name="bindable-property" type="tns:BindablePropertyType" maxOccurs="unbounded"/>
+      <xs:element name="theme" type="tns:ThemeType" maxOccurs="unbounded"/>
     </xs:sequence>
-    <xs:attribute name="supports-two-way" type="xs:boolean" default="false"/>
-    <xs:attribute name="supports-commands" type="xs:boolean" default="false"/>
-    <xs:attribute name="supports-validation" type="xs:boolean" default="false"/>
+    <xs:attribute name="default-theme" type="xs:string" default="default"/>
+    <xs:attribute name="auto-theme-switching" type="xs:boolean" default="true"/>
   </xs:complexType>
 
-  <xs:complexType name="BindablePropertyType">
+  <!-- Theme Type -->
+  <xs:complexType name="ThemeType">
     <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="xs:string" use="required"/>
-    <xs:attribute name="mode" type="tns:BindingModeEnum" default="OneWay"/>
-    <xs:attribute name="default-value" type="xs:string"/>
-    <xs:attribute name="dependency-property" type="xs:boolean" default="false"/>
+    <xs:attribute name="type" type="tns:ThemeTypeEnum" use="required"/>
+    <xs:attribute name="resource-path" type="xs:string"/>
+    <xs:attribute name="base-theme" type="xs:string"/>
   </xs:complexType>
 
-  <xs:simpleType name="BindingModeEnum">
+  <!-- Theme Type Enumeration -->
+  <xs:simpleType name="ThemeTypeEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="OneWay"/>
-      <xs:enumeration value="TwoWay"/>
-      <xs:enumeration value="OneTime"/>
-      <xs:enumeration value="OneWayToSource"/>
+      <xs:enumeration value="light"/>
+      <xs:enumeration value="dark"/>
+      <xs:enumeration value="high-contrast"/>
+      <xs:enumeration value="custom"/>
+      <xs:enumeration value="auto"/>
     </xs:restriction>
   </xs:simpleType>
 
@@ -239,7 +228,7 @@
     </xs:sequence>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Platform Constraints Type -->
+  <!-- Platform Constraints Type -->
   <xs:complexType name="PlatformConstraintsType">
     <xs:sequence>
       <xs:element name="platform-constraint" type="tns:PlatformConstraintType" maxOccurs="unbounded"/>
@@ -254,7 +243,7 @@
     <xs:attribute name="alternative-control" type="xs:string"/>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Performance Hints Type -->
+  <!-- Performance Hints Type -->
   <xs:complexType name="PerformanceHintsType">
     <xs:attribute name="virtualization-supported" type="xs:boolean" default="false"/>
     <xs:attribute name="heavy-rendering" type="xs:boolean" default="false"/>
@@ -278,7 +267,6 @@
     <xs:attribute name="min" type="xs:int"/>
     <xs:attribute name="max" type="xs:int"/>
     <xs:attribute name="values" type="xs:string"/>
-    <!-- ENHANCEMENT: v1.3 attribute enhancements -->
     <xs:attribute name="deprecated" type="xs:boolean" default="false"/>
     <xs:attribute name="platform-specific" type="tns:PlatformEnum"/>
     <xs:attribute name="validation-pattern" type="xs:string"/>
@@ -286,7 +274,7 @@
     <xs:attribute name="description" type="xs:string"/>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Expanded Attribute Type Enumeration -->
+  <!-- Attribute Type Enumeration -->
   <xs:simpleType name="AttributeTypeEnum">
     <xs:restriction base="xs:string">
       <xs:enumeration value="string"/>
@@ -294,35 +282,18 @@
       <xs:enumeration value="bool"/>
       <xs:enumeration value="enum"/>
       <xs:enumeration value="color"/>
+      <xs:enumeration value="font"/>
       <xs:enumeration value="date"/>
       <xs:enumeration value="datetime"/>
       <xs:enumeration value="timespan"/>
       <xs:enumeration value="icon"/>
       <xs:enumeration value="image"/>
-      <xs:enumeration value="object"/>
+      <xs:enumeration value="url"/>
       <xs:enumeration value="decimal"/>
-      <xs:enumeration value="float"/>
-      <xs:enumeration value="double"/>
+      <xs:enumeration value="regex"/>
+      <xs:enumeration value="object"/>
       <xs:enumeration value="char"/>
-      <xs:enumeration value="font"/>
-      <xs:enumeration value="size"/>
-      <xs:enumeration value="point"/>
-      <xs:enumeration value="padding"/>
-      <xs:enumeration value="thickness"/>
-      <xs:enumeration value="corner-radius"/>
-      <xs:enumeration value="brush"/>
-      <xs:enumeration value="geometry"/>
-      <!-- ENHANCEMENT: v1.3 new types -->
-      <xs:enumeration value="command"/>
-      <xs:enumeration value="binding"/>
-      <xs:enumeration value="template"/>
-      <xs:enumeration value="style"/>
-      <xs:enumeration value="resource"/>
-      <xs:enumeration value="converter"/>
-      <xs:enumeration value="validator"/>
-      <xs:enumeration value="collection"/>
-      <xs:enumeration value="uri"/>
-      <xs:enumeration value="version"/>
+      <xs:enumeration value="array"/>
     </xs:restriction>
   </xs:simpleType>
 
@@ -330,7 +301,6 @@
   <xs:complexType name="BehaviorType">
     <xs:sequence>
       <xs:element name="event" type="tns:EventType" maxOccurs="unbounded"/>
-      <!-- ENHANCEMENT: v1.3 behavior enhancements -->
       <xs:element name="command" type="tns:CommandType" minOccurs="0" maxOccurs="unbounded"/>
       <xs:element name="gesture" type="tns:GestureType" minOccurs="0" maxOccurs="unbounded"/>
     </xs:sequence>
@@ -339,27 +309,20 @@
   <xs:complexType name="EventType">
     <xs:attribute name="name" type="xs:string" use="required"/>
     <xs:attribute name="alias" type="xs:string"/>
-    <xs:attribute name="required" type="xs:boolean" default="false"/>
-    <xs:attribute name="handler-required" type="xs:boolean" default="false"/>
-    <xs:attribute name="bubbles" type="xs:boolean" default="false"/>
-    <xs:attribute name="parameters" type="xs:string"/>
-    <!-- ENHANCEMENT: v1.3 event enhancements -->
     <xs:attribute name="async" type="xs:boolean" default="false"/>
     <xs:attribute name="cancelable" type="xs:boolean" default="false"/>
-    <xs:attribute name="platform-specific" type="tns:PlatformEnum"/>
+    <xs:attribute name="bubbles" type="xs:boolean" default="false"/>
     <xs:attribute name="accessibility-event" type="xs:boolean" default="false"/>
+    <xs:attribute name="description" type="xs:string"/>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Command Type -->
   <xs:complexType name="CommandType">
     <xs:attribute name="name" type="xs:string" use="required"/>
     <xs:attribute name="can-execute-property" type="xs:string"/>
-    <xs:attribute name="parameter-type" type="xs:string"/>
     <xs:attribute name="async" type="xs:boolean" default="false"/>
     <xs:attribute name="description" type="xs:string"/>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Gesture Type -->
   <xs:complexType name="GestureType">
     <xs:attribute name="name" type="xs:string" use="required"/>
     <xs:attribute name="type" type="tns:GestureTypeEnum" use="required"/>
@@ -381,362 +344,201 @@
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- Control Structure (simplified for patterns) -->
-  <xs:complexType name="ControlStructureType">
-    <xs:choice maxOccurs="unbounded">
-      <xs:element name="items" type="tns:ItemsType"/>
-      <xs:element name="menu-items" type="tns:MenuItemsType"/>
-      <xs:element name="columns" type="tns:ColumnsType"/>
-      <xs:element name="children" type="tns:ChildrenType"/>
-      <xs:element name="selected-items" type="tns:SelectedItemsType"/>
-      <xs:element name="context-menu" type="tns:ContextMenuType"/>
-      <xs:element name="panel1" type="tns:PanelType"/>
-      <xs:element name="panel2" type="tns:PanelType"/>
-      <xs:element name="pane" type="tns:PaneType"/>
-      <xs:element name="content" type="tns:ContentType"/>
-      <xs:element name="grid-definitions" type="tns:GridDefinitionsType"/>
-      <!-- ENHANCEMENT: v1.3 new structure types -->
-      <xs:element name="templates" type="tns:TemplatesType"/>
-      <xs:element name="resources" type="tns:ResourcesType"/>
-      <xs:element name="animations" type="tns:AnimationsType"/>
+  <!-- Template Type -->
+  <xs:complexType name="TemplateType" mixed="true">
+    <xs:choice minOccurs="0" maxOccurs="unbounded">
+      <!-- Allow any content for flexibility -->
+      <xs:any processContents="lax"/>
     </xs:choice>
   </xs:complexType>
 
-  <!-- ENHANCEMENT: Templates Type -->
-  <xs:complexType name="TemplatesType">
+  <!-- Validation Rules Type -->
+  <xs:complexType name="ValidationRulesType">
     <xs:sequence>
-      <xs:element name="template" type="tns:TemplateDefinitionType" maxOccurs="unbounded"/>
+      <xs:element name="rule" type="tns:ValidationRuleType" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
 
-  <xs:complexType name="TemplateDefinitionType">
+  <xs:complexType name="ValidationRuleType">
     <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="tns:TemplateTypeEnum" use="required"/>
-    <xs:attribute name="target-type" type="xs:string"/>
-    <xs:attribute name="data-type" type="xs:string"/>
+    <xs:attribute name="type" type="tns:ValidationTypeEnum" use="required"/>
+    <xs:attribute name="pattern" type="xs:string"/>
+    <xs:attribute name="message" type="xs:string"/>
+    <xs:attribute name="severity" type="tns:ValidationSeverityEnum" default="error"/>
   </xs:complexType>
 
-  <xs:simpleType name="TemplateTypeEnum">
+  <xs:simpleType name="ValidationTypeEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="control"/>
-      <xs:enumeration value="data"/>
-      <xs:enumeration value="item"/>
-      <xs:enumeration value="header"/>
-      <xs:enumeration value="footer"/>
-      <xs:enumeration value="cell"/>
+      <xs:enumeration value="required"/>
+      <xs:enumeration value="pattern"/>
+      <xs:enumeration value="range"/>
+      <xs:enumeration value="length"/>
+      <xs:enumeration value="custom"/>
+      <xs:enumeration value="email"/>
+      <xs:enumeration value="url"/>
+      <xs:enumeration value="number"/>
+      <xs:enumeration value="date"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- ENHANCEMENT: Resources Type -->
-  <xs:complexType name="ResourcesType">
-    <xs:sequence>
-      <xs:element name="resource" type="tns:ResourceDefinitionType" maxOccurs="unbounded"/>
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="ResourceDefinitionType">
-    <xs:attribute name="key" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="tns:ResourceTypeEnum" use="required"/>
-    <xs:attribute name="value" type="xs:string"/>
-    <xs:attribute name="source" type="xs:string"/>
-  </xs:complexType>
-
-  <xs:simpleType name="ResourceTypeEnum">
+  <xs:simpleType name="ValidationSeverityEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="string"/>
-      <xs:enumeration value="brush"/>
-      <xs:enumeration value="color"/>
-      <xs:enumeration value="font"/>
-      <xs:enumeration value="image"/>
-      <xs:enumeration value="style"/>
-      <xs:enumeration value="template"/>
+      <xs:enumeration value="error"/>
+      <xs:enumeration value="warning"/>
+      <xs:enumeration value="info"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- ENHANCEMENT: Animations Type -->
-  <xs:complexType name="AnimationsType">
+  <!-- Accessibility Requirements Type -->
+  <xs:complexType name="AccessibilityRequirementsType">
     <xs:sequence>
-      <xs:element name="animation" type="tns:AnimationDefinitionType" maxOccurs="unbounded"/>
+      <xs:element name="requirement" type="tns:AccessibilityRequirementType" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
 
-  <xs:complexType name="AnimationDefinitionType">
-    <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="tns:AnimationTypeEnum" use="required"/>
-    <xs:attribute name="duration" type="xs:string" default="0.3s"/>
-    <xs:attribute name="easing" type="tns:EasingEnum" default="ease"/>
-    <xs:attribute name="trigger" type="xs:string"/>
+  <xs:complexType name="AccessibilityRequirementType">
+    <xs:attribute name="standard" type="tns:AccessibilityStandardEnum" use="required"/>
+    <xs:attribute name="level" type="tns:AccessibilityLevelEnum" use="required"/>
+    <xs:attribute name="description" type="xs:string"/>
+    <xs:attribute name="required" type="xs:boolean" default="true"/>
   </xs:complexType>
 
-  <xs:simpleType name="AnimationTypeEnum">
+  <xs:simpleType name="AccessibilityStandardEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="fade"/>
-      <xs:enumeration value="slide"/>
-      <xs:enumeration value="scale"/>
-      <xs:enumeration value="rotate"/>
-      <xs:enumeration value="transform"/>
-      <xs:enumeration value="custom"/>
+      <xs:enumeration value="wcag"/>
+      <xs:enumeration value="section-508"/>
+      <xs:enumeration value="ada"/>
+      <xs:enumeration value="en-301-549"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <xs:simpleType name="EasingEnum">
+  <xs:simpleType name="AccessibilityLevelEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="linear"/>
-      <xs:enumeration value="ease"/>
-      <xs:enumeration value="ease-in"/>
-      <xs:enumeration value="ease-out"/>
-      <xs:enumeration value="ease-in-out"/>
-      <xs:enumeration value="bounce"/>
-      <xs:enumeration value="elastic"/>
+      <xs:enumeration value="a"/>
+      <xs:enumeration value="aa"/>
+      <xs:enumeration value="aaa"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- Structure Definition -->
-  <xs:complexType name="StructureType">
-    <xs:sequence>
-      <xs:element name="description" type="xs:string" minOccurs="0"/>
-      <xs:element name="constraints" type="tns:ConstraintsType" minOccurs="0"/>
-      <xs:element name="attributes" type="tns:AttributesType" minOccurs="0"/>
-      <xs:element name="template" type="tns:TemplateType"/>
-      <!-- ENHANCEMENT: v1.3 structure enhancements -->
-      <xs:element name="composition" type="tns:CompositionType" minOccurs="0"/>
-    </xs:sequence>
-    <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="xs:string" use="required"/>
-    <xs:attribute name="category" type="tns:ControlCategoryEnum" use="required"/>
-    <xs:attribute name="inherits" type="xs:string"/>
-    <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
-    <!-- ENHANCEMENT: Version tracking -->
-    <xs:attribute name="schema-version" type="xs:string" default="1.3"/>
-  </xs:complexType>
-
-  <!-- ENHANCEMENT: Composition Type -->
-  <xs:complexType name="CompositionType">
+  <!-- Data Binding Capabilities Type -->
+  <xs:complexType name="DataBindingCapabilitiesType">
     <xs:sequence>
-      <xs:element name="component" type="tns:ComponentType" maxOccurs="unbounded"/>
+      <xs:element name="bindable-property" type="tns:BindablePropertyType" maxOccurs="unbounded"/>
     </xs:sequence>
+    <xs:attribute name="supports-two-way" type="xs:boolean" default="false"/>
+    <xs:attribute name="supports-commands" type="xs:boolean" default="false"/>
+    <xs:attribute name="supports-validation" type="xs:boolean" default="false"/>
   </xs:complexType>
 
-  <xs:complexType name="ComponentType">
-    <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="xs:string" use="required"/>
-    <xs:attribute name="required" type="xs:boolean" default="false"/>
-    <xs:attribute name="multiple" type="xs:boolean" default="false"/>
-  </xs:complexType>
-
-  <!-- Wireframe Definition -->
-  <xs:complexType name="WireframeType">
-    <xs:sequence>
-      <xs:element name="description" type="xs:string" minOccurs="0"/>
-      <xs:element name="template" type="tns:TemplateType"/>
-      <!-- ENHANCEMENT: v1.3 wireframe enhancements -->
-      <xs:element name="responsive" type="tns:ResponsiveType" minOccurs="0"/>
-      <xs:element name="theme-support" type="tns:ThemeSupportType" minOccurs="0"/>
-    </xs:sequence>
+  <xs:complexType name="BindablePropertyType">
     <xs:attribute name="name" type="xs:string" use="required"/>
     <xs:attribute name="type" type="xs:string" use="required"/>
-    <xs:attribute name="platform" type="tns:PlatformEnum" default="basic"/>
-    <!-- ENHANCEMENT: Version tracking -->
-    <xs:attribute name="schema-version" type="xs:string" default="1.3"/>
-  </xs:complexType>
-
-  <!-- ENHANCEMENT: Responsive Type -->
-  <xs:complexType name="ResponsiveType">
-    <xs:sequence>
-      <xs:element name="breakpoint" type="tns:BreakpointType" maxOccurs="unbounded"/>
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="BreakpointType">
-    <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="min-width" type="xs:int"/>
-    <xs:attribute name="max-width" type="xs:int"/>
-    <xs:attribute name="orientation" type="tns:OrientationEnum"/>
-    <xs:attribute name="template-override" type="xs:string"/>
-  </xs:complexType>
-
-  <xs:simpleType name="OrientationEnum">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="portrait"/>
-      <xs:enumeration value="landscape"/>
-      <xs:enumeration value="any"/>
-    </xs:restriction>
-  </xs:simpleType>
-
-  <!-- ENHANCEMENT: Theme Support Type -->
-  <xs:complexType name="ThemeSupportType">
-    <xs:sequence>
-      <xs:element name="theme-variant" type="tns:ThemeVariantType" maxOccurs="unbounded"/>
-    </xs:sequence>
-  </xs:complexType>
-
-  <xs:complexType name="ThemeVariantType">
-    <xs:attribute name="name" type="xs:string" use="required"/>
-    <xs:attribute name="type" type="tns:ThemeTypeEnum" use="required"/>
-    <xs:attribute name="resource-override" type="xs:string"/>
+    <xs:attribute name="mode" type="tns:BindingModeEnum" default="OneWay"/>
+    <xs:attribute name="default-value" type="xs:string"/>
+    <xs:attribute name="dependency-property" type="xs:boolean" default="false"/>
   </xs:complexType>
 
-  <xs:simpleType name="ThemeTypeEnum">
+  <xs:simpleType name="BindingModeEnum">
     <xs:restriction base="xs:string">
-      <xs:enumeration value="light"/>
-      <xs:enumeration value="dark"/>
-      <xs:enumeration value="high-contrast"/>
-      <xs:enumeration value="custom"/>
+      <xs:enumeration value="OneWay"/>
+      <xs:enumeration value="TwoWay"/>
+      <xs:enumeration value="OneTime"/>
+      <xs:enumeration value="OneWayToSource"/>
     </xs:restriction>
   </xs:simpleType>
 
-  <!-- Template (simplified - contains mixed content for flexibility) -->
-  <xs:complexType name="TemplateType" mixed="true">
-    <xs:sequence>
-      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
-    </xs:sequence>
-    <xs:anyAttribute processContents="lax"/>
+  <!-- Control Structure (simplified for patterns) -->
+  <xs:complexType name="ControlStructureType">
+    <xs:choice maxOccurs="unbounded">
+      <xs:element name="items" type="tns:ItemsType"/>
+      <xs:element name="menu-items" type="tns:MenuItemsType"/>
+      <xs:element name="columns" type="tns:ColumnsType"/>
+      <xs:element name="children" type="tns:ChildrenType"/>
+      <xs:element name="selected-items" type="tns:SelectedItemsType"/>
+      <xs:element name="context-menu" type="tns:ContextMenuType"/>
+      <xs:element name="panel1" type="tns:PanelType"/>
+      <xs:element name="panel2" type="tns:PanelType"/>
+      <xs:element name="pane" type="tns:PaneType"/>
+      <xs:element name="content" type="tns:ContentType"/>
+      <xs:element name="grid-definitions" type="tns:GridDefinitionsType"/>
+      <xs:element name="templates" type="tns:TemplatesType"/>
+      <xs:element name="resources" type="tns:ResourcesType"/>
+      <xs:element name="animations" type="tns:AnimationsType"/>
+    </xs:choice>
   </xs:complexType>
 
-  <!-- Supporting Types (simplified) -->
+  <!-- Supporting Structure Types -->
   <xs:complexType name="ItemsType">
-    <xs:sequence>
-      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
-    </xs:sequence>
     <xs:attribute name="min-count" type="xs:int" default="0"/>
-    <xs:attribute name="max-count" type="xs:string" default="unlimited"/>
-    <xs:attribute name="max-depth" type="xs:int"/>
-    <!-- ENHANCEMENT: v1.3 virtualization support -->
-    <xs:attribute name="virtualization" type="xs:boolean" default="false"/>
-    <xs:attribute name="lazy-loading" type="xs:boolean" default="false"/>
+    <xs:attribute name="max-count" type="xs:string" default="unbounded"/>
   </xs:complexType>
 
   <xs:complexType name="MenuItemsType">
-    <xs:sequence>
-      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
-    </xs:sequence>
-    <xs:attribute name="min-count" type="xs:int" default="1"/>
-    <xs:attribute name="max-count" type="xs:string" default="unlimited"/>
-    <xs:attribute name="max-depth" type="xs:int"/>
-    <!-- ENHANCEMENT: v1.3 menu enhancements -->
-    <xs:attribute name="dynamic" type="xs:boolean" default="false"/>
-    <xs:attribute name="context-aware" type="xs:boolean" default="false"/>
+    <xs:attribute name="max-depth" type="xs:int" default="5"/>
   </xs:complexType>
 
   <xs:complexType name="ColumnsType">
-    <xs:sequence>
-      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
-    </xs:sequence>
-    <xs:attribute name="min-count" type="xs:int" default="1"/>
-    <xs:attribute name="max-count" type="xs:int" default="50"/>
-    <!-- ENHANCEMENT: v1.3 column enhancements -->
-    <xs:attribute name="auto-generate" type="xs:boolean" default="false"/>
-    <xs:attribute name="reorderable" type="xs:boolean" default="true"/>
     <xs:attribute name="resizable" type="xs:boolean" default="true"/>
   </xs:complexType>
 
   <xs:complexType name="ChildrenType">
-    <xs:sequence>
-      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
-    </xs:sequence>
-    <xs:attribute name="allow-multiple" type="xs:boolean" default="true"/>
-    <!-- ENHANCEMENT: v1.3 children enhancements -->
-    <xs:attribute name="layout-strategy" type="tns:LayoutStrategyEnum" default="default"/>
+    <xs:attribute name="max-count" type="xs:string" default="unbounded"/>
   </xs:complexType>
 
-  <xs:simpleType name="LayoutStrategyEnum">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="default"/>
-      <xs:enumeration value="stack"/>
-      <xs:enumeration value="grid"/>
-      <xs:enumeration value="flow"/>
-      <xs:enumeration value="absolute"/>
-      <xs:enumeration value="responsive"/>
-    </xs:restriction>
-  </xs:simpleType>
-
   <xs:complexType name="SelectedItemsType">
-    <xs:attribute name="max-count" type="xs:string" use="required"/>
-    <!-- ENHANCEMENT: v1.3 selection enhancements -->
-    <xs:attribute name="selection-mode" type="tns:SelectionModeEnum" default="single"/>
+    <xs:attribute name="max-count" type="xs:int" default="1"/>
   </xs:complexType>
 
-  <xs:simpleType name="SelectionModeEnum">
-    <xs:restriction base="xs:string">
-      <xs:enumeration value="none"/>
-      <xs:enumeration value="single"/>
-      <xs:enumeration value="multiple"/>
-      <xs:enumeration value="extended"/>
-      <xs:enumeration value="range"/>
-    </xs:restriction>
-  </xs:simpleType>
-
   <xs:complexType name="ContextMenuType">
-    <xs:attribute name="max-count" type="xs:int" default="1"/>
-    <!-- ENHANCEMENT: v1.3 context menu enhancements -->
-    <xs:attribute name="dynamic" type="xs:boolean" default="false"/>
-    <xs:attribute name="platform-native" type="xs:boolean" default="true"/>
+    <xs:attribute name="enabled" type="xs:boolean" default="true"/>
   </xs:complexType>
 
   <xs:complexType name="PanelType">
-    <xs:sequence>
-      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
-    </xs:sequence>
-    <xs:attribute name="required" type="xs:boolean" default="true"/>
-    <!-- ENHANCEMENT: v1.3 panel enhancements -->
-    <xs:attribute name="collapsible" type="xs:boolean" default="false"/>
-    <xs:attribute name="resizable" type="xs:boolean" default="false"/>
+    <xs:attribute name="resizable" type="xs:boolean" default="true"/>
   </xs:complexType>
 
   <xs:complexType name="PaneType">
-    <xs:sequence>
-      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
-    </xs:sequence>
-    <!-- ENHANCEMENT: v1.3 pane enhancements -->
-    <xs:attribute name="dockable" type="xs:boolean" default="false"/>
-    <xs:attribute name="floatable" type="xs:boolean" default="false"/>
+    <xs:attribute name="collapsible" type="xs:boolean" default="false"/>
   </xs:complexType>
 
   <xs:complexType name="ContentType">
-    <xs:sequence>
-      <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax"/>
-    </xs:sequence>
-    <!-- ENHANCEMENT: v1.3 content enhancements -->
-    <xs:attribute name="scrollable" type="xs:boolean" default="false"/>
-    <xs:attribute name="virtualized" type="xs:boolean" default="false"/>
+    <xs:attribute name="type" type="xs:string" default="any"/>
   </xs:complexType>
 
   <xs:complexType name="GridDefinitionsType">
-    <xs:sequence>
-      <xs:element name="row-definitions" type="tns:RowDefinitionsType"/>
-      <xs:element name="column-definitions" type="tns:ColumnDefinitionsType"/>
-    </xs:sequence>
-    <!-- ENHANCEMENT: v1.3 grid enhancements -->
-    <xs:attribute name="auto-columns" type="xs:boolean" default="false"/>
-    <xs:attribute name="auto-rows" type="xs:boolean" default="false"/>
+    <xs:attribute name="auto-generate" type="xs:boolean" default="false"/>
   </xs:complexType>
 
-  <xs:complexType name="RowDefinitionsType">
+  <xs:complexType name="TemplatesType">
     <xs:sequence>
-      <xs:element name="row-definition" type="tns:RowDefinitionType" maxOccurs="unbounded"/>
+      <xs:element name="template" type="tns:TemplateDefinitionType" maxOccurs="unbounded"/>
     </xs:sequence>
   </xs:complexType>
 
-  <xs:complexType name="RowDefinitionType">
-    <xs:attribute name="height" type="xs:string" use="required"/>
-    <xs:attribute name="min-height" type="xs:string" default="0"/>
-    <xs:attribute name="max-height" type="xs:string" default="Infinity"/>
-    <!-- ENHANCEMENT: v1.3 row enhancements -->
-    <xs:attribute name="shared-size-group" type="xs:string"/>
+  <xs:complexType name="TemplateDefinitionType">
+    <xs:attribute name="name" type="xs:string" use="required"/>
+    <xs:attribute name="type" type="tns:TemplateTypeEnum" use="required"/>
+    <xs:attribute name="target-type" type="xs:string"/>
+    <xs:attribute name="data-type" type="xs:string"/>
   </xs:complexType>
 
-  <xs:complexType name="ColumnDefinitionsType">
-    <xs:sequence>
-      <xs:element name="column-definition" type="tns:ColumnDefinitionType" maxOccurs="unbounded"/>
-    </xs:sequence>
+  <xs:simpleType name="TemplateTypeEnum">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="control"/>
+      <xs:enumeration value="data"/>
+      <xs:enumeration value="item"/>
+      <xs:enumeration value="header"/>
+      <xs:enumeration value="footer"/>
+      <xs:enumeration value="cell"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="ResourcesType">
+    <xs:attribute name="auto-load" type="xs:boolean" default="true"/>
   </xs:complexType>
 
-  <xs:complexType name="ColumnDefinitionType">
-    <xs:attribute name="width" type="xs:string" use="required"/>
-    <xs:attribute name="min-width" type="xs:string" default="0"/>
-    <xs:attribute name="max-width" type="xs:string" default="Infinity"/>
-    <!-- ENHANCEMENT: v1.3 column enhancements -->
-    <xs:attribute name="shared-size-group" type="xs:string"/>
+  <xs:complexType name="AnimationsType">
+    <xs:attribute name="enabled" type="xs:boolean" default="true"/>
   </xs:complexType>
 
 </xs:schema>