Question

What is the purpose of the labels in the messages in a sequence diagram?

a.

To show the time ordering of messages

b.

To show the conditions for the message to be sent

c.

To show the ordering of objects

d.

To show the numerical values for real-time applications

Posted under Software Engineering

Answer: (b).To show the conditions for the message to be sent Explanation:The labels in the messages in a sequence diagram may contain guards, boolean expressions that state the conditions which must hold for the message to be sent.

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Q. What is the purpose of the labels in the messages in a sequence diagram?

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