BPMN: Inclusive Gateways Must Be Clever

18. November 2021 - 11:03 Uhr

In the previous post I have shown how the three most important gateway types behave when they are executed by a process engine. The inclusive gateway is very flexible. At an inclusive split, one or more exits can be selected. A corresponding inclusive merge waits until all selected paths have been completed.

However, what happens when there is another splitting gateway in one of these paths, so that in some cases the inclusive merge may not be reached via this path anymore? In order to ensure that such processes do not get stuck, inclusive gateways must be clever, since they need to determine via which paths they still can be reached.

In order to test this behavior, i have inserted a splitting exclusive gateway in the previous example.

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