Stop nodes

In sequence diagrams, a stop node represents the destruction of a participant in an interaction.

As the following figure illustrates, a stop node appears at the bottom of a lifeline and is displayed by an X.

An interaction frame shows two lifelines with one synchronous message and one combined fragment that crosses the lifelines. A stop node appears on the left lifeline below the combined fragment.

When you create a destroy message, a stop node is created automatically. However, you can manually create a stop node on a lifeline to represent the destruction of a participant at a specific position.

Related tasks
Terminating participants in interactions by using stop nodes
Creating stop nodes
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