UML22 — Section: 15.3.14 Transition

In section 15.3.14, Transition, subsection Constraints you will find the following constraint: [6] An initial transition at the topmost level (region of a statemachine) either has no trigger or it has a trigger with the stereotype “create”. ... OCL body for constraint ... The element to be stereotyped in this constraint is a Trigger. If you look in Appendix C: Standard Stereotypes you will not find this stereotype. It appears that this constraint is left over from UML1.4/1.5. In UML 1.4 the corresponding stereotyped element in this constraint was an Event. In particular it was a CallEvent. The corresponding <<create>> stereotype is listed in Appendix C as a retired stereotype. So, either the constraint should be deleted or the stereotype must be brought out of retirement.

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