Multiple outgoing sequence flows from one action in a UML activity diagram

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Is it possible that an action has multiple outgoing sequence flows in an UML activity diagram?

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Yes, it is possible to have multiple outgoing flows from an action in UML, but it may not be obvious to everyone what this means. In the latest versions of the UML specifications, it means that all these outgoing flows are traversed, not just one. It is equivalent to a fork. If you want only one outgoing flow to be chosen, you should use a decision node. Example:

actdiagr