Class-Diagram.md

@@ -9,6 +9,22 @@ Do not use in production.
 endheader
 
 package Model.Common {
+    abstract class Action {
+        + GetName() : string
+        + Act(object...) : object {abstract}
+        + GetSignature() : ActionSignature {abstract}
+    }
+
+    class ActionSignature {
+        + Args: IEnumerable<Type>
+        + ReturnType: Type
+    }
+
+    abstract class Property {
+        + GetName() : string
+        + IsReadOnly() : bool
+    }
+
     interface IDisplayable {
         + GetPosition() : Vector2
         + GetVisible() : bool