Describe joining and forking in an activity diagram.

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written 5.3 years ago by

teamques10 ★ 66k

Joining:

A joining may represent the synchronization of two or more concurrent flows of control. A joining can have two or more incoming transitions and one outgoing transition.
Above the joining, the activities associated with each of these paths continue in parallel.
At the joining, the concurrent flows synchronize, meaning that each waits until all incoming flow have reached the joining, at which point one flow of control continues below the joining.
The notation for a joining is a line segment with several activity edges entering it, and only one edge leaving it.

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Forking:

A forking can represent the splitting of a single flow of control into two or more concurrent flows of control.
A forking can have one incoming transition and two or more outgoing transitions, each of which represents an independent flow of control.
Below the forking, the activities associated with each of these paths continue in parallel i.e.concurrently. - - The notation for a forking is a line segment with a single activity edge entering it, and two or more edges leaving it.

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Example:

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