Sometimes we can’t undo our actions. Water under the bridge. But we can make it right by doing something else to compensate. BPMN allows us to use intermediate events to compensate for mistakes in the past. A classic example is cancellation of a purchase. Our example is a little more fun.
BPMN Diagrams – Stop The Presses! With Intermediate Cancel Events
Business processes often need to be cancelled. An error condition can cause a process to terminate, or an incoming message can cause a process to be terminated. Error conditions occur within transactional subprocesses and a cancel intermediate event is used to describe any special cancellation steps.
BPMN Diagrams – Play Catch With Intermediate Errors
Business Processes might start out as easy-to-diagram simple processes. Over time, these processes get more complex, as they have to deal with real-world considerations and unanticipated situations. Things can go wrong. Classical flow diagramming gets complex when dealing with errors or exceptions in a process, while BPMN modeling keeps things simple.