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  1. OMG Issue

SBVR11 — is-property-of fact types

  • Key: SBVR11-116
  • Legacy Issue Number: 15948
  • Status: closed  
  • Source: Ajilon ( Graham Witt)
  • Summary:

    The example fact type in section 11.1.5.1 under “is-property-of fact type” is “engine size is property of car model” yet the examples in Annex E do not have this form. Further if one tries to instantiate this fact type, one gets something like “351 cubic inches is property of Holden Marina” which misses essential information. I believe that ‘is-property-of’ fact types should each have the 2 forms “engine size of car model is cubic measurement”/“car model has engine size of cubic measurement” allowing for instantiations such as “engine size of Holden Marina is 351 cubic inches”/“Holden Marina has engine size of 351 cubic inches”.

  • Reported: SBVR 1.0 — Fri, 14 Jan 2011 05:00 GMT
  • Disposition: Resolved — SBVR 1.1
  • Disposition Summary:

    "Is-property-of fact type" was revised in the Resolution of Issue 13716.
    Specifically, the concept 'property association' (formerly 'is-property-of fact type') now gives these as examples:
    Example: the association 'engine size of car model'
    Example: the association 'person has eye color'
    The concept 'engine size' handles, as needed, appropriate units-of-measure as part of its definition. For example, here is a typical definition of 'engine size':
    Engine size: volume swept by all the pistons inside the cylinders of an internal combustion engine in a single movement from top dead centre (TDC) to bottom dead centre (BDC) [Engine size is commonly specified in cubic centimeters (cc), litres (l), or cubic inches (cid).]
    Example instances of engine size could be: 61 cid (cubic inches), 151 cid, 351 cid, etc. And an example fact could be "The car model 'Buick' has the engine size '151 cid'." Alternatively, this could be expressed as "The car model 'Buick' has an engine size '2.5 liter'." since '151 cid' and '2.5 liter' are alternative expressions of the same engine size value.
    The examples in Annex E are being revised to reflect changes made under Issue 13716 (et al).
    Revised Text:
    None needed.
    Disposition: No Change

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