In Unified Modeling Language (UML) sequence diagrams, you can add
and remove covered lifelines to and from combined fragments to visually represent
constructs in interaction instances.
You must have a sequence diagram with lifelines and combined fragments
open in the diagram editor.
To add or remove covered lifelines to or from a combined fragment:
- In the diagram editor, right-click a combined fragment; then click and complete one of the following steps:
- To add covered lifelines, in the Add Covered Lifelines window,
click the lifelines to cover.
- To remove covered lifelines, in the Remove Covered Lifelines window,
click the covered lifelines to remove.
- Click OK.