SysML 1.2 RTF Avatar
  1. OMG Issue

SYSML12 — Non-atomic flow ports use property type incorrectly

  • Key: SYSML12-37
  • Legacy Issue Number: 14424
  • Status: closed  
  • Source: NIST ( Mr. Conrad Bock)
  • Summary:

    Non-atomic flow ports use the type of
    the port for an interface with
    properties specifying the type of things
    that flow. If the various types of
    things flowing are intended to flow at
    the same time, then flow specifications
    aren't needed. This can be done with an
    atomic port flowing objects supporting
    the interface. If the the various types
    of things flowing are meant to flow at
    different times, this is isn't UML
    semantics, or at least is very
    unintuitive from an engineering point.
    This can be done either with 1) an
    atomic port flowing a supertype of the
    various types of things that flow 2) the
    association mentioned in in the first
    paragraph having multiple types, which
    the semantics defined to be union of the

  • Reported: SysML 1.1 — Wed, 16 Sep 2009 04:00 GMT
  • Disposition: Resolved — SysML 1.2
  • Disposition Summary:

    Ports typed by flow specifications do not mean that items supporting the interface
    are flowing. This is clarified in the resolution to issue 13178.
    Disposition: Closed, no change

  • Updated: Fri, 6 Mar 2015 20:58 GMT