Legacy Issue Number: 13263
Source: Change Vision ( Michael Chonoles)
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
Disposition: Deferred — SysML 1.6
Postponed to the next RTF
Updated: Mon, 1 Apr 2019 18:17 GMT