Looping in an activity diagram is best represented using what?

Looping in an activity diagram is best represented using what?

A. looping in an activity diagram is best represented by synchronizaton bars.
B. 1
C. 2
D. 3

Answer Explanation:

A. looping in an activity diagram is best represented by synchronizaton bars. In an activity diagram, looping can be represented using a looping symbol. This is a small circle with an arrow pointing back to the activity that is being repeated. The looping symbol is placed on the flow arrow that leads back to the activity that is being repeated.

The looping symbol is accompanied by a condition, which specifies the criteria that must be met in order for the loop to continue. For example, the condition could be “number of iterations is less than 5,” or “input is not valid.” When the condition is no longer met, the loop is terminated and control flows to the next activity in the diagram.

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