diff --git a/DeedyDesigner/Deedy.Design/Collection/DeedyElementCollection.cs b/DeedyDesigner/Deedy.Design/Collection/DeedyElementCollection.cs
new file mode 100644
index 0000000..ea1eb80
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/Collection/DeedyElementCollection.cs
@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Deedy.Design
+{
+    public class DeedyElementCollection : ObservableCollection<IDeedyElement>
+    {
+        public DeedyElementCollection() : this(false) { }
+        public DeedyElementCollection(bool needDistinct = false)
+        {
+            this._needDistinct = needDistinct;
+        }
+        private bool _needDistinct = false;
+        public void AddRange(params IDeedyElement[] elements)
+        {
+            foreach (var element in elements) this.Add(element);
+        }
+        public void AddRange([AllowNull] IEnumerable<IDeedyElement> elements)
+        {
+            if (elements != null) foreach (var element in elements) this.Add(element);
+        }
+        public new void Add([AllowNull] IDeedyElement element)
+        {
+            if (element == null) return;
+            if (this._needDistinct)
+            {
+                foreach (var item in this.Items)
+                {
+                    if (element.DEClass == item.DEClass && element.DETitle == item.DETitle) return;
+                }
+            }
+            base.Add(element);
+        }
+    }
+}
diff --git a/DeedyDesigner/Deedy.Design/DeedyAction.cs b/DeedyDesigner/Deedy.Design/DeedyAction.cs
new file mode 100644
index 0000000..ccad2fb
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/DeedyAction.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Deedy.Design
+{
+    public abstract class DeedyAction : IDeedyAction
+    {
+        public string DEClass { get; protected internal set; } = "";
+        public string DETitle { get; set; } = "";
+        public string DERemark { get; set; } = "";
+        public string DEIdentify { get; set; } = "";
+        public IDeedyElement? DeedyParent { get; protected internal set; }
+        public IDeedyViewer? DeedyViewer { get; protected internal set; }
+
+        public event PropertyChangedEventHandler? PropertyChanged;
+
+        /// <summary>
+        /// 发送属性变更通知
+        /// </summary>
+        /// <param name="propertyName">发生变更的属性</param>
+        protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName = null) => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        /// <summary>
+        /// 读取一个字段的值
+        /// </summary>
+        /// <typeparam name="T">值的类型，可以通过参数进行自动判定</typeparam>
+        /// <param name="field">字段的引用【注意：此参数通过引用传递】</param>
+        /// <param name="propertyName">属性名称；如果在属性的读取访问器中调用可以自动注入</param>
+        /// <returns>字段中的值</returns>
+        protected virtual T GetField<T>(ref T field, [CallerMemberName] string? propertyName = null)
+        {
+            return field;
+        }
+        /// <summary>
+        /// 检查新值是否与原值相等，如果不相等便赋值并发出通知
+        /// </summary>
+        /// <typeparam name="T">值的类型，可以通过参数进行自动判定</typeparam>
+        /// <param name="field">字段的引用【注意：此参数通过引用传递】</param>
+        /// <param name="value">字段的新值</param>
+        /// <param name="propertyName">要进行变更通知的属性名称；如果在属性的设置访问器中调用可以自动注入</param>
+        /// <returns>值是否有变更</returns>
+        protected virtual bool SetField<T>(ref T field, T value, [CallerMemberName] string? propertyName = null)
+        {
+            if (EqualityComparer<T>.Default.Equals(field, value)) return false;
+            field = value;
+            OnPropertyChanged(propertyName);
+            return true;
+        }
+    }
+}
diff --git a/DeedyDesigner/Deedy.Design/DeedyHelper.cs b/DeedyDesigner/Deedy.Design/DeedyHelper.cs
new file mode 100644
index 0000000..e6d952c
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/DeedyHelper.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Deedy.Design
+{
+    public static class DeedyHelper
+    {
+    }
+}
diff --git a/DeedyDesigner/Deedy.Design/DeedyUIProxy.cs b/DeedyDesigner/Deedy.Design/DeedyUIProxy.cs
new file mode 100644
index 0000000..2523b72
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/DeedyUIProxy.cs
@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Deedy.Design
+{
+    public class DeedyUIProxy : IDeedyVisual
+    {
+        private readonly IDeedyVisual _Visual;
+        public DeedyUIProxy(IDeedyVisual visual) { this._Visual = visual; }
+        public string DEClass { get; protected internal set; } = "";
+        public string DETitle { get; set; } = "";
+        public string DERemark { get; set; } = "";
+        public string DEIdentify { get; set; } = "";
+        public IDeedyElement? DeedyParent { get; protected internal set; }
+
+        public event PropertyChangedEventHandler? PropertyChanged;
+
+        /// <summary>
+        /// 发送属性变更通知
+        /// </summary>
+        /// <param name="propertyName">发生变更的属性</param>
+        protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName = null) => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        /// <summary>
+        /// 读取一个字段的值
+        /// </summary>
+        /// <typeparam name="T">值的类型，可以通过参数进行自动判定</typeparam>
+        /// <param name="field">字段的引用【注意：此参数通过引用传递】</param>
+        /// <param name="propertyName">属性名称；如果在属性的读取访问器中调用可以自动注入</param>
+        /// <returns>字段中的值</returns>
+        protected virtual T GetField<T>(ref T field, [CallerMemberName] string? propertyName = null)
+        {
+            //TODO：这里处理内部属性获取逻辑（包括运行时参数映射逻辑）
+            return field;
+        }
+        /// <summary>
+        /// 检查新值是否与原值相等，如果不相等便赋值并发出通知
+        /// </summary>
+        /// <typeparam name="T">值的类型，可以通过参数进行自动判定</typeparam>
+        /// <param name="field">字段的引用【注意：此参数通过引用传递】</param>
+        /// <param name="value">字段的新值</param>
+        /// <param name="propertyName">要进行变更通知的属性名称；如果在属性的设置访问器中调用可以自动注入</param>
+        /// <returns>值是否有变更</returns>
+        protected virtual bool SetField<T>(ref T field, T value, [CallerMemberName] string? propertyName = null)
+        {
+            if (EqualityComparer<T>.Default.Equals(field, value)) return false;
+            //TODO：这里处理内部属性变更逻辑（包括运行时参数映射逻辑）
+            field = value;
+            OnPropertyChanged(propertyName);
+            return true;
+        }
+    }
+}
diff --git a/DeedyDesigner/Deedy.Design/DeedyViewer.cs b/DeedyDesigner/Deedy.Design/DeedyViewer.cs
index 6a600cd..948fbcf 100644
--- a/DeedyDesigner/Deedy.Design/DeedyViewer.cs
+++ b/DeedyDesigner/Deedy.Design/DeedyViewer.cs
@@ -1,6 +1,9 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
+using System.Runtime.CompilerServices;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
@@ -44,11 +47,65 @@ namespace Deedy.Design
     ///     <MyNamespace:DeedyViewer/>
     ///
     /// </summary>
-    public class DeedyViewer : Control
+    public class DeedyViewer : Control, IDeedyViewer
     {
         static DeedyViewer()
         {
             DefaultStyleKeyProperty.OverrideMetadata(typeof(DeedyViewer), new FrameworkPropertyMetadata(typeof(DeedyViewer)));
         }
+
+        public event PropertyChangedEventHandler? PropertyChanged;
+
+        /// <summary>
+        /// 发送属性变更通知
+        /// </summary>
+        /// <param name="propertyName">发生变更的属性</param>
+        protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName = null) => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        /// <summary>
+        /// 读取一个字段的值
+        /// </summary>
+        /// <typeparam name="T">值的类型，可以通过参数进行自动判定</typeparam>
+        /// <param name="field">字段的引用【注意：此参数通过引用传递】</param>
+        /// <param name="propertyName">属性名称；如果在属性的读取访问器中调用可以自动注入</param>
+        /// <returns>字段中的值</returns>
+        protected virtual T GetField<T>(ref T field, [CallerMemberName] string? propertyName = null)
+        {
+            return field;
+        }
+        /// <summary>
+        /// 检查新值是否与原值相等，如果不相等便赋值并发出通知
+        /// </summary>
+        /// <typeparam name="T">值的类型，可以通过参数进行自动判定</typeparam>
+        /// <param name="field">字段的引用【注意：此参数通过引用传递】</param>
+        /// <param name="value">字段的新值</param>
+        /// <param name="propertyName">要进行变更通知的属性名称；如果在属性的设置访问器中调用可以自动注入</param>
+        /// <returns>值是否有变更</returns>
+        protected virtual bool SetField<T>(ref T field, T value, [CallerMemberName] string? propertyName = null)
+        {
+            if (EqualityComparer<T>.Default.Equals(field, value)) return false;
+            field = value;
+            OnPropertyChanged(propertyName);
+            return true;
+        }
+
+        [AllowNull, DefaultValue(null)]
+        /// <summary>
+        /// 动作节点
+        /// </summary>
+        public IDeedyAction DeedyAction
+        {
+            get { return (IDeedyAction)GetValue(DeedyActionProperty); }
+            set { SetValue(DeedyActionProperty, value); }
+        }
+        public static readonly DependencyProperty DeedyActionProperty =
+            DependencyProperty.Register("DeedyAction", typeof(IDeedyAction), typeof(DeedyViewer), new PropertyMetadata(null,
+                (d, e) => (d as DeedyViewer)?.DeedyAction_PropertyChangedCallback(d, e)));
+        /// <summary>
+        /// 处理「DeedyActionViewer.DeedyAction」属性变更
+        /// </summary>
+        protected virtual void DeedyAction_PropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+
+        }
     }
 }
diff --git a/DeedyDesigner/Deedy.Design/IDeedyAction.cs b/DeedyDesigner/Deedy.Design/IDeedyAction.cs
new file mode 100644
index 0000000..66ba99f
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/IDeedyAction.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Deedy.Design
+{
+    public interface IDeedyAction : IDeedyElement
+    {
+        public IDeedyViewer? DeedyViewer { get; }
+    }
+}
diff --git a/DeedyDesigner/Deedy.Design/IDeedyElement.cs b/DeedyDesigner/Deedy.Design/IDeedyElement.cs
new file mode 100644
index 0000000..106fdfe
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/IDeedyElement.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Deedy.Design
+{
+    public interface IDeedyElement : INotifyPropertyChanged
+    {
+        public string DEClass { get; }
+        public string DETitle { get; set; }
+        public string DERemark { get; set; }
+        public string DEIdentify { get; set; }
+        public IDeedyElement? DeedyParent { get; }
+
+    }
+}
diff --git a/DeedyDesigner/Deedy.Design/IDeedyViewer.cs b/DeedyDesigner/Deedy.Design/IDeedyViewer.cs
new file mode 100644
index 0000000..7b7ca11
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/IDeedyViewer.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Deedy.Design
+{
+    public interface IDeedyViewer : INotifyPropertyChanged
+    {
+        [AllowNull]
+        public IDeedyAction DeedyAction { get; set; }
+    }
+}
diff --git a/DeedyDesigner/Deedy.Design/IDeedyVisual.cs b/DeedyDesigner/Deedy.Design/IDeedyVisual.cs
new file mode 100644
index 0000000..288a2cf
--- /dev/null
+++ b/DeedyDesigner/Deedy.Design/IDeedyVisual.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Deedy.Design
+{
+    public interface IDeedyVisual : IDeedyElement
+    {
+    }
+}