Implicit Parallel Split

Multiple sequence flows out of an Activity or Event has the same behavior as if there were a Parallel Gateway following the Activity. We strongly recommend making all flow control explicit in Gateways.


As we will see in the next examples, there are several behaviors possible, depending on conditions attached to the Sequence Flows. We have also observed that vendors do not all implement this correctly. A model created in one tool may behave differently when imported into another tool. By adding the gateway, the behavior is explicit with no possibility for misinterpretation by readers or tools.

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