SysML 2.0b2 FTF Avatar
  1. OMG Issue

SYSML2 — Message and flow connection ends should be occurrence usages

  • Key: SYSML2-305
  • Status: open  
  • Source: Model Driven Solutions ( Mr. Ed Seidewitz)
  • Summary:

    The end features of MessageConnection, FlowConnection and SuccessionFlowConnection in the standard library package Connections are typed as Occurrences, but they are currently syntactically reference usages, not occurrence usages. However, the abstract syntax for EventOccurrenceUsage requires that its referenced eventOccurrence must actually be an OccurrenceUsage. This means that the source and target ends of, e.g., a message, if inherited from MessageConnection and not redefined, cannot be referenced by EventOccurrenceUsages, which prevents an intended use in "sequence diagram" modeling.

  • Reported: SysML 2.0b1 — Sun, 16 Jul 2023 20:35 GMT
  • Updated: Mon, 8 Apr 2024 18:21 GMT