Legacy Issue Number: 17047
Source: University of Applied Sciences Dresden ( Michael Gruenert)
An interesting rule (page 245):
‘A Start Event MUST NOT be a target for Sequence Flows; it MUST NOT have incoming Sequence Flows. An exception to this is when a Start Event is used in an Expanded Sub-Process and is attached to the boundary of that Sub-Process. In this case, a Sequence Flow from the higher-level Process MAY connect to that Start Event in lieu of connecting to the actual boundary of the Sub-Process.’
I never found a tool who implements this rule. On page 261 a ‘Boundary Start event’ does not exist. Only Intermediate Events are of type ‘boundary’ (interrupting/non-interrupting). Or interrupting/non-interrupting Start Events for an Event-Sub-Process (but they are not of type ‘boundary’).
-> is it ok to remove this exception?
Reported: BPMN 2.0 — Tue, 24 Jan 2012 05:00 GMT
Updated: Fri, 6 Mar 2015 20:57 GMT
BPMN21 — Incomming sequence flow at start event
- Key: BPMN21-326
- OMG Task Force: BPMN 2.1 RTF