Adding lifelines

In sequence diagrams, you can add a lifeline to show the participant in an interaction.

To add a lifeline:
  1. Open a sequence diagram.
  2. In the Palette, click Lifeline.
  3. In the interaction frame, complete one of the following steps:
    • To represent a specific participant type, click Create New Class, Create New Actor, or Enter Component Name. Type a name for the lifeline and click OK.
    • To represent an unspecified participant, click Unspecified.
    The new lifeline appears vertically aligned with other lifelines in the interaction frame.
Related concepts
Lifelines
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