Junction points in state machine diagrams

In state machine diagrams, junction points are vertices that allow one or more incoming transitions as well as one or more outgoing transitions. The decision of which outgoing branches to take is made statically, before the incoming transition is taken.

Junction points can link multiple transitions together. Typically, you use junction points to create compound transition paths between states or to make static conditional branches. For example, you can use a junction to merge multiple incoming transitions into a single outgoing transition, or to split an incoming transition into multiple outgoing transition segments.


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