Creating interaction occurrences

In Unified Modeling Language (UML) sequence diagrams, you can create an interaction occurrence by specifying a new unspecified occurrence or by creating a new interaction for visual representation only.

You must have a sequence diagram with multiple lifelines open in the diagram editor.
To create an interaction occurrence:
  1. In the Palette, click Interaction Occurrence.
  2. Click inside the interaction frame and, in the window that opens, complete one of the following steps:
    • To create an interaction occurrence with an unspecified interaction, click Unspecified.
    • To create an interaction occurrence with a new interaction, click Create New Interaction.
  3. In the Add Covered Lifelines window, click the lifelines to cover and click OK.
  4. Type a name for the interaction occurrence and press Enter.
Tip: To add an interaction occurrence to a single lifeline, in the Palette, click Interaction Occurrence and, in the interaction frame, click a lifeline; then in the window that opens, click Unspecified or Create New Interaction.
Related concepts
Interaction frames
Interaction occurrences
Related tasks
Adding and removing covered lifelines to and from interaction occurrences
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