Creating lifelines

In Unified Modeling Language (UML) sequence diagrams, you can create lifelines to show how instances participate in interactions between C/C++ elements.

You must have a sequence diagram open and active in the diagram editor.
To create a lifeline:
  1. In the Palette, click Lifeline.
  2. Click an interaction frame where you want to add the new lifeline.
  3. Type a name for the new lifeline (instance) followed by a colon (:) to indicate that the type name is to be specified, and press Enter.
A lifeline is created at the x-location where you clicked in the interaction frame, is aligned vertically with other lifelines in the interaction, and extends downward to cover the height of the interaction frame.

Parent topic: Developing lifelines

Related concepts
Lifelines

Related tasks
Deleting lifelines
Specifying class names and types for lifelines
Terminating lifelines with stop nodes
Repositioning lifelines

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