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.
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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