diff --git a/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationCellEditor.java b/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationCellEditor.java
index 3d5098d..f3caaaf 100644
--- a/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationCellEditor.java
+++ b/AlgebraicDataflowArchitectureModel/src/application/editor/stages/ControlFlowDelegationCellEditor.java
@@ -1,12 +1,15 @@
 package application.editor.stages;
 
 import java.util.EventObject;
+import java.util.logging.Level;
 
+import javax.swing.CellEditor;
 import javax.swing.JOptionPane;
 
 import com.mxgraph.model.mxCell;
 import com.mxgraph.swing.mxGraphComponent;
 
+import application.ApplicationWindow;
 import application.editor.FlowCellEditor;
 import models.controlFlowModel.CallEdgeAttribute;
 import models.controlFlowModel.EntryPointObjectNode;
@@ -37,17 +40,25 @@
 	 */
 	@Override
 	public void startEditing(Object cellObj, EventObject eventObj) {
-		if (editingCell != null)
-			stopEditing(true);
+		if (editingCell != null) stopEditing(true);
 		ControlFlowDelegationStage cfdStage = (ControlFlowDelegationStage) stage;
 
 		switch (cfdStage.getCurState()) {
 		case SELECTING_AN_EDGE:
 			// Branching based on the edge click event.
-			// | double clicked > Showing delegatable nodes.
+			// | double clicked > Showing delegaeatable nodes.
+			ApplicationWindow.logger.log(Level.INFO, "Double clicked");
+			
 			if (graphComponent.getGraph().getModel().isEdge(cellObj)) {
 				// cache a target edge of cell;
 				targetEdgeCell = (mxCell) cellObj;
+				
+				// Logging			
+				CallEdgeAttribute callEdgeAttr = (CallEdgeAttribute) graphComponent.getGraph().getModel().getValue(targetEdgeCell);
+				if (callEdgeAttr == null) return;
+				
+				String pairNodeStr = "(" + callEdgeAttr.getSourceObjectNode().getName() + ", " + callEdgeAttr.getDestinationObjectNode().getName() + ")" ;
+				ApplicationWindow.logger.log(Level.INFO, "Selecting Control-Flow (src, dst) = " + pairNodeStr);
 
 				showDelegatableNodesBySelectedEdge(cellObj);
 				cfdStage.setState(ControlFlowDelegationStageStatus.SHOWING_DELEGATABLE_NODES);
@@ -68,12 +79,19 @@
 				if (dstObjNode == null)	throw new ClassCastException();
 
 				if (!cfdStage.isExecutableDelegation(callEdgeAttr, dstObjNode)) {
-					JOptionPane.showMessageDialog(graphComponent, "It's impossible for the chose object to delegate.");
+					JOptionPane.showMessageDialog(graphComponent, "It's impossible for \"" + dstObjNode.getName() + "\" to delegate.");
+					ApplicationWindow.logger.log(Level.INFO, "\"" + dstObjNode.getName() + "\"" + " wasn't able to apply to CFD");
 					return;
 				}
+
 				cfdStage.showDelegatedGraph(graphComponent.getGraph(), targetEdgeCell, (mxCell) cellObj);
+				ApplicationWindow.logger.log(Level.INFO, "Apply CFD to \"" + dstObjNode.getName() + "\"");
+
 				cfdStage.setState(ControlFlowDelegationStageStatus.SELECTING_AN_EDGE);
 			} else {
+				// Logging
+				ApplicationWindow.logger.log(Level.INFO, "CFD was canceled because it was selected a control-flow");
+
 				cfdStage.resetAllStyleOfCells();
 				cfdStage.setState(ControlFlowDelegationStageStatus.SELECTING_AN_EDGE);
 			}
@@ -96,15 +114,22 @@
 					
 					ObjectNode targetObjNode = targetObjNodeAttr.getObjectNode();
 					if (isNotStatelessObject(targetObjNode)) {
-						JOptionPane.showMessageDialog(graphComponent, "It's impossible for the chose object to dependent.");
+						JOptionPane.showMessageDialog(graphComponent, "It's impossible for \"" + targetObjNode.getName() + "\" to dependent.");
+						ApplicationWindow.logger.log(Level.INFO, "\"" + targetObjNode.getName() + "\"" + " wasn't able to apply to Depends on Mediator");
 						return;
 					}
 					
 					dependentObjectNode(targetObjCell);
+					
+					// Logging
+					ApplicationWindow.logger.log(Level.INFO,  "Apply Depedents on Mediator to " + "\"" + targetObjNode.getName() + "\"");
 
 					cfdStage.resetAllStyleOfCells();
 					cfdStage.setState(ControlFlowDelegationStageStatus.SELECTING_AN_EDGE);
 				} else {
+					// Logging
+					ApplicationWindow.logger.log(Level.INFO, "Depends on Mediator was canceled because it was selected a control-flow");
+
 					cfdStage.resetAllStyleOfCells();
 					cfdStage.setState(ControlFlowDelegationStageStatus.SELECTING_AN_EDGE);
 				}