A message in a Sequence diagram represents a dynamic interaction from one element to another. Sometimes when you are designing your model you might have to change either the start or end point of a message as the responsibilities of elements change during design. For this reason, Enterprise Architect enables you to change the message scope by setting a new start or end element.
Change Message Scope
To change message scope, follow the steps below:
| 1. | Select the message in the Sequence diagram. |
| 2. | Right-click on the message to open the context menu. |
| 3. | Select Set Message Scope. |
| 4. | In the pop up dialog, click on the drop-down arrows in the From Element and To Element fields, and select the required elements. |
| 5. | Click on the OK button to save changes. |
The message is re-routed to meet your changed requirements.