Creating combined fragments in sequence diagrams

In sequence diagrams, you can create combined fragments to visually represent control structures in interactions.
You must have a sequence diagram open that contains lifelines.
  1. In the Palette, click a type of combined fragment.
  2. Click in the interaction frame.
  3. Drag the combined fragment across the elements that you want to include in it.
The covered messages and interaction fragments are displayed in the first interaction operand of the combined fragment.
Related concepts
Sequence diagrams
Lifelines in UML diagrams
Combined fragments in sequence diagrams

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