diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/CallTreeGraphNode.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/CallTreeGraphNode.java
index a47f96b..12a6d92 100644
--- a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/CallTreeGraphNode.java
+++ b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/model/CallTreeGraphNode.java
@@ -18,17 +18,16 @@
 	
 	public CallTreeGraphNode(IContainer graphModel, int style, MethodExecution method) {
 		super(graphModel, style, method.getMethodName(), method);
-		setSize(20.0, 5.0);
-//		set
+//		setSize(20.0, 5.0);
 	}
 		
 	public void highlight() {
 		this.focus = true;
 		System.out.println(this.getSize().height() + ", " + this.getSize().width());
-		GUIUtil.openEditor(this.getMethod());		
+		GUIUtil.openEditor(this.getMethodExecution());
 	}
 	
-	public MethodExecution getMethod() {
+	public MethodExecution getMethodExecution() {
 		return (MethodExecution)this.getData();
 	}
 	
diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/CallTreeGraph.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/CallTreeGraph.java
index 2d68300..3d91f81 100644
--- a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/CallTreeGraph.java
+++ b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/CallTreeGraph.java
@@ -48,7 +48,7 @@
 	}
 	
 	public CallTreeGraphNode createCallerTreeGraphNode(CallTreeGraphNode calleeNode) {
-		MethodExecution parent = calleeNode.getMethod().getCallerMethodExecution();
+		MethodExecution parent = calleeNode.getMethodExecution().getCallerMethodExecution();
 		if (parent == null) return null;
 		CallTreeGraphNode callerNode = createTreeGraphNode(this, SWT.NONE, parent);
 		setCurrentNode(callerNode);
@@ -57,12 +57,6 @@
 		return callerNode;
 	}
 	
-	public void openFile() {
-		IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
-//		IEditorPart editorPart = page.openEditor
-		
-	}
-	
 	public CallTreeGraphNode getCurrentNode() {
 		return currentNode;
 	}
diff --git a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/InteractionComposite.java b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/InteractionComposite.java
index 663ae21..878dc89 100644
--- a/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/InteractionComposite.java
+++ b/org.ntlab.interactiveFeatureLocator/src/interactivefeaturelocator/views/InteractionComposite.java
@@ -41,7 +41,7 @@
 		comboData.top = new FormAttachment(0, 10);
 		comboData.right = new FormAttachment(100, -10);
 		combo.setLayoutData(comboData);
-		updateCombo(me);
+		updateCombo(combo, me);
 		combo.setVisible(!dataflow);
 				
 		decideButton = new Button(this, SWT.NONE);
@@ -62,7 +62,7 @@
 		decideButton.setLayoutData(decideButtonData);
 
 		discription = new Label(this, SWT.NONE);
-		updateDiscription(me);
+		updateDiscription(discription, me);
 		FormData textData = new FormData();
 		textData.top = new FormAttachment(0, 0);
 		textData.left = new FormAttachment(0, 0);
@@ -86,11 +86,11 @@
 	}
 	
 	public void update(MethodExecution me) {
-		updateCombo(me);
-		updateDiscription(me);
+		updateCombo(combo, me);
+		updateDiscription(discription, me);
 	}
 
-	public void updateCombo(MethodExecution me) {
+	public void updateCombo(Combo combo, MethodExecution me) {
 		ArrayList<MethodProperty> propertyList = new ArrayList<>(((MethodInfo)me.getAugmentation()).getProperties());
 		setData(propertyList);
 		for (MethodProperty property : (ArrayList<MethodProperty>)this.getData()) {
@@ -114,7 +114,7 @@
 		}
 	}
 	
-	public void updateDiscription(MethodExecution me) {
+	public void updateDiscription(Label discription, MethodExecution me) {
 		String text = "";
 		text += "Current Method : " + me.getSignature() + "\n";
 		discription.setText(text);