Again, my opinion only… BPMN is meant to show one party’s view of the
collaboration. If you are the provider, the requester’s process is opaque
and vice versa. If the full details of both parties’ processes are known,
representing the collaboration as 2 process pools is allowed. But I put
back to you your original question, if the 2 actors are separate
participants in the collaboration, how to you represent an activity
involving both? Technically you can’t. This is why I doubt these are
independent processes.
Bruce Silver
Principal, Bruce Silver Associates/BPMessentials
+1 831.685.8803
