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Sequence diagram - Activation bar

Shruti Verma

Joined: Dec 18, 2011
Posts: 8

Is it necessary to show activation bars on the life line in sequence diagrams? Can I do without them as I understand they are generally optional. Candidates who have passed the exam, can you kindly provide your suggestions?

Murali Ranga
Ranch Hand

Joined: Dec 16, 2011
Posts: 38
My design was with activation bar.
It shows time the object is "active or object is performing an action.I always prefer with activation bar
In my opinion the diagram will be very clear and easy to understand If you have multiple scenarios in one diagram.
Shruti Verma

Joined: Dec 18, 2011
Posts: 8
Thanks Murali for sharing your opinion.
I agree. Here's the link:
subject: Sequence diagram - Activation bar
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