In sequence diagrams, when you create a destroy message,
a stop node is created automatically. However, you can manually
create a stop node on a lifeline to terminate a participant in an
interaction. The lifeline ends at the stop node, which is designated
by an X.
To create a stop node:
- Open a sequence diagram that contains at least
one lifeline.
- In the Palette, click Stop Node.
- In the interaction frame, click a lifeline where you
want to terminate the participant.
Note: You cannot create a stop node if messages
and interaction fragments appear below the stop node.