However, if the Action is an invocation of a Behavior with streaming Parameters ... then the Action execution may also post data to OutputPins corresponding to streaming output Parameters before completion of the execution ... Source Unified Modeling Language 2.5.1
When completed, an Action execution provides any output data on the OutputPins of the Action, and it terminates. Source Unified Modeling Language 2.5.1
An ActivityFinalNode is a FinalNode that stops all flows in an Activity (or StructuredActivityNode, see sub clause 16.11). A token reaching an ActivityFinalNode owned by an Activity terminates the execution of that Activity. Source Unified Modeling Language 2.5.1
A FlowFinalNode is a FinalNode that terminates a flow. All tokens accepted by a FlowFinalNode are destroyed. This has no effect on other flows in the Activity. Source Unified Modeling Language 2.5.1
terminate – Entering a terminate Pseudostate implies that the execution of the StateMachine is terminated immediately. The StateMachine does not exit any States nor does it perform any exit Behaviors. Any executing doActivity Behaviors are ... aborted Source Unified Modeling Language 2.5.1