I want to know how to express the fact that the user has the chance to choose between action1 or action2 in sequence diagram UML : which means he can either do action1 or action2. Please help me if you know the answer and Thanks a lot in advance.
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1use a combined fragment 'alt' – bruno Aug 01 '20 at 10:12
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@bruno, you should make it an answer rather than putting it in the comment. Add an example diagram and you can be sure to have my upvote. – Ister Aug 01 '20 at 10:23
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@Ister no need, there are already answers on S.O. so I propose to close for duplicate – bruno Aug 01 '20 at 10:40