If the End Event for a process has multiple incoming parallel flows, under which condition will the process complete?

In BPMN, a process instance is considered complete only when there are no more active tokens flowing through it. When parallel paths are created (e.g., by a Parallel Gateway), each path has its own token. An End Event consumes a token from an incoming path, terminating that specific path. However, the overall process instance remains active until all other parallel paths have also completed and their tokens are consumed. Therefore, the process completes only after the last of the parallel paths has finished its execution.

A. This describes the behavior of merging gateways like an Inclusive or Event-Based Gateway, not the condition for completing a process with parallel flows.

C. The paths do not need to complete simultaneously. They can finish at different times; the process ends only after the last path is complete.

D. This statement is false. BPMN syntax allows an End Event to have multiple incoming Sequence Flows, acting as a sink for various process paths.

- Object Management Group (OMG). (2013). Business Process Model and Notation (BPMN) Version 2.0.2. OMG Document Number formal/2013-12-09.

- Section 10.3.4, Parallel Gateway (p. 298): Describes how parallel flows are created and synchronized. The implicit merge at the end of a process requires all parallel paths to complete.

- Section 10.5.3, End Event (p. 319): "If the End Event is in a top-level Process... then the Process instance is terminated." This termination happens when the last token is consumed.