In sequence diagrams, you can add and remove covered lifelines
to combined fragments to visually represent constructs in interaction instances.
You must have a sequence diagram with lifelines and combined fragments
open.
To add or remove covered lifelines to or from a combined fragment:
- In the diagram editor, right-click a combined fragment; then click Covered
Lifelines and complete one of the following steps:
- To add lifelines, click Add Covered Lifeline(s).
- To remove lifelines, click Remove Covered Lifeline(s).
- In the window that opens, click the lifelines and click OK.
Note: When you remove a covered lifeline in a combined
fragment, all the messages and interaction fragments that are contained
in the combined fragment and are covered by the lifeline are also deleted.