In sequence diagrams, you can change the source lifeline or target
lifeline of a message to reconnect the message to the new lifeline.
To reconnect a message to another lifeline:
- Open a sequence diagram that contains existing lifelines and messages.
- In the interaction frame, complete one of the following steps:
- To reconnect a message to a different lifeline, click a message handle
and drag it to another lifeline. The message is reconnected to the new lifeline.
- To reconnect a message on the same lifeline, click a message handle
of a synchronous, asynchronous, or destroy message and drag it to the same
lifeline. The message becomes self-directed and the send message appears higher
than the receive message.