Adding and removing covered lifelines to and from interaction occurrences

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:
  1. 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).
  2. In the window that opens, click the lifelines and click OK.
Related concepts
Interaction occurrences
Lifelines
Related tasks
Creating interaction occurrences
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