In Unified Modeling Language (UML) sequence diagrams,
you can add and remove covered lifelines to interaction occurrences
to visually represent executions in interaction instances.
You must have a sequence diagram that contains
at least one interaction occurrences with multiple lifelines open
in the diagram editor.
To add or remove covered lifelines to or from an interaction
occurrence:
- In the diagram editor, right-click an interaction
occurrence; then click Covered Lifelines and
complete one of the following steps:
- To add covered lifelines, click Add
Covered Lifeline(s).
- To remove covered lifelines, click Remove Covered
Lifeline(s).
- In the window that opens, click the lifelines and click OK.