UML 2.5 FTF Avatar
  1. OMG Issue

UML25 — TestIdentityAction for datatypes

  • Key: UML25-674
  • Legacy Issue Number: 14989
  • Status: closed  
  • Source: NIST ( Mr. Conrad Bock)
  • Summary:

    In UML, TestIdentityAction does not currently apply to datatypes. The
    introduction and description of TestIdentityAction say
    "TestIdentifyAction is an action that tests if two values are identical
    objects. This action returns true if the two input values are the same
    identity, false if they are not." Data type values are not objects and
    do not have identity (that is, you cannot tell one data type value from

    If it is decided that the execution engine should not reflect the above
    semantics, the semantics of TestIdentityAction needs to be extended for
    unstructured datatype values to test whether the values are the same.
    For structured values, such as strings, the values and their contents
    would need to be the same, recursively if they contain more datatype

  • Reported: FUML 1.0b2 — Tue, 19 Jan 2010 05:00 GMT
  • Disposition: Resolved — UML 2.5
  • Disposition Summary:

    This issue is obsolete. The specification of the semantics of TestIdentityAction in the UML 2.5 beta specification, in
    Subclause 16.4.3, under “Test Identity Actions”, covers the testing of instances of data types.
    Disposition: Closed - No Change

  • Updated: Fri, 6 Mar 2015 20:59 GMT