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  1. OMG Issue

SYSML17 — Support BDD's for State Machines

  • Key: SYSML17-32
  • Legacy Issue Number: 13263
  • Status: open  
  • Source: Change Vision ( Michael Chonoles)
  • Summary:

    One very powerful organizational technique of SysML is the pairing of definitional diagrams with usage diagrams

    BDD (for Blocks) IBDs

    BDD (for Activities) ACTs

    BDD (for Constraint Blocks) PARs

    The BDD form identifies the elements (structural, functional, constraint) and the 2nd form assembles the elements using detailed design techniques suitable for the element form.

    It would be convenient and symmetric to support a similar diagram for for State Machines

    BDD(for States) STMs

    In the past, Class diagrams for States (in UML 1.x) were used. However, it appears that UML 2.x has deleted the ability to use inheritance relationships among states. Though we could look to UML to fix this, I believe it is possible to model state->substate relationships as compositions without a change to UML to produce a satisfactory conclusion.

  • Reported: SysML 1.4 — Thu, 15 Jan 2009 05:00 GMT
  • Updated: Tue, 23 Apr 2019 00:20 GMT