QVT 1.4 RTF Avatar
  1. OMG Issue

QVT14 — QVTo: Relationship between QVTo Mapping and QVTr Relation

  • Key: QVT14-4
  • Legacy Issue Number: 15390
  • Status: open  
  • Source: Model Driven Solutions ( Dr. Edward Willink)
  • Summary:

    8.1.4 states "a mapping operation is always a refinement of an implicit relation" but 8.2.15 defines "refinedRelation: Relation [0..1] The refined relation, if any." Clearly a contradiction.

    8.1.4. provides the REL_PackageToSchema example of how an implicit relation might be defined, but no other examples or synthesis rules are supplied.

    enforce and checkonly appear in the REL_PackageToSchema example indicating that these define execution mode of a QVTo trnasformation, but there does not appear to be any description of how a transformation might be executed to for instance update an output model. Perhaps the 'output' parameter is 'inout' for create/update but 'out' for create/overwrite.

  • Reported: QVT 1.1 — Fri, 30 Jul 2010 04:00 GMT
  • Updated: Tue, 22 Dec 2015 15:31 GMT