Deleting messages from sequence diagrams

You can delete messages from your project that you no longer need. When you delete a message, you have different results depending on the type of message that you delete.
You must have a sequence diagram open.

To delete a message, in the diagram editor, right-click a message; then click Delete from Model.

When you delete a message, the result differs depending on the type of message.
  • If you delete a send message from a synchronous message, the corresponding execution specification and return message are also deleted.
  • If you delete a return message from a synchronous message, the corresponding send message and execution specification remain intact.
  • If you delete an asynchronous message, the send message and corresponding execution specifications are deleted.
  • If you delete a create message, the lifeline extends vertically to the top of the interaction frame.
  • If you delete a destroy message, the lifeline extends vertically to the bottom of the interaction frame.
Related concepts
Lifelines in UML diagrams
Messages in UML diagrams

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