diff --git a/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/CombinedDiagram.cs b/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/AtomicityStep.cs
similarity index 63%
rename from DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/CombinedDiagram.cs
rename to DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/AtomicityStep.cs
index 1811b87..273bdd0 100644
--- a/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/CombinedDiagram.cs
+++ b/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/AtomicityStep.cs
@@ -6,8 +6,8 @@ using System.Threading.Tasks;
 
 namespace Deedy.Activity
 {
-    public abstract class CombinedDiagram : FlowAction
+    public abstract class AtomicityStep : FlowAction
     {
-        public CombinedDiagram() { }
+        public AtomicityStep() { }
     }
 }
diff --git a/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/AtomicityDiagram.cs b/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/CombinedNode.cs
similarity index 63%
rename from DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/AtomicityDiagram.cs
rename to DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/CombinedNode.cs
index bb98616..abf8046 100644
--- a/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/AtomicityDiagram.cs
+++ b/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/CombinedNode.cs
@@ -6,8 +6,8 @@ using System.Threading.Tasks;
 
 namespace Deedy.Activity
 {
-    public abstract class AtomicityDiagram : FlowAction
+    public abstract class CombinedNode : FlowAction
     {
-        public AtomicityDiagram() { }
+        public CombinedNode() { }
     }
 }
diff --git a/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/ContainerDiagram.cs b/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/ContainerBlock.cs
similarity index 63%
rename from DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/ContainerDiagram.cs
rename to DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/ContainerBlock.cs
index 29883cb..5a3a419 100644
--- a/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/ContainerDiagram.cs
+++ b/DeedyDesigner/Deedy.Activity/DeedyAction/FlowAction/ContainerBlock.cs
@@ -6,8 +6,8 @@ using System.Threading.Tasks;
 
 namespace Deedy.Activity
 {
-    public abstract class ContainerDiagram : FlowAction
+    public abstract class ContainerBlock : FlowAction
     {
-        public ContainerDiagram() { }
+        public ContainerBlock() { }
     }
 }