UML 2.4.1 RTF Avatar
  1. OMG Issue

UML241 — UML 2.4: NamedElement.ownedRule could be ordered

  • Key: UML241-21
  • Legacy Issue Number: 16493
  • Status: closed  
  • Source: Model Driven Solutions ( Dr. Edward Willink)
  • Summary:

    Graphically, Constraints appear independently so the unordered
    characteristric of NamedElement.ownRule seems sensible. However in a textual
    rendering ordering is appropriate.

    For instance, Constraints may sensibly be layered so that simple Constraints
    come first and act as guards against redundant evaluation of later

    For instance, when auto-generating a specification such as the OCL
    specification, a specific ordering is required in the generated output.

    Please change to



  • Reported: UML 2.4 — Mon, 15 Aug 2011 04:00 GMT
  • Disposition: Resolved — UML 2.4.1
  • Disposition Summary:

    The ownedRule property is actually on Namespace, not NamedElement.
    In general, it is not appropriate to add constraints to the abstract syntax in order to capture presentation issues, like the
    textual rendering of an order. Further, the UML semantics provide no requirement that ownedRules be evaluated in
    any particular order, so, as far as UML is concerned, there is no underlying meaning to such ordering.
    Disposition: Closed - No Change

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