DTV 1.0b2 FTF Avatar
  1. OMG Issue

DTV — Quantity Kind is a categorization type

  • Key: DTV-36
  • Legacy Issue Number: 17404
  • Status: closed  
  • Source: Thematix Partners LLC ( Mr. Edward J. Barkmeyer)
  • Summary:

    Specification: Date Time Vocabulary
    Version: beta-1
    Title: Quantity Kind is a categorization type
    Source: Ed Barkmeyer, NIST, (as directed by the FTF)


    Section D.3.1 of the Date Time Vocabulary declares the concept 'quantity type' as follows:
    Definition: categorization type for ‘quantity’ that characterizes quantities as being mutually comparable
    Concept Type: concept type
    Figure D.5 shows 'quantity kind' as a <<concept type>>

    It appears that the SBVR tag Concept Type should have the value 'categorization type', to match the definition. Moreover, the UML <<concept type>> stereotype does not carry the more important "powertype" semantics that typifies a categorization type. The UML diagram should show 'quantity kind' as a powertype or categorization type. Making it a powertype should also result in a formal UML specification that its instances classify 'quantity'.

  • Reported: DTV 1.0b1 — Mon, 4 Jun 2012 04:00 GMT
  • Disposition: Resolved — DTV 1.0b2
  • Disposition Summary:

    The FTF agrees that that quantity kind is a categorization type. The powertype aspect is addressed in the UML Profile for SBVR.
    Also a CLIF Axiom for ‘quantity kind’ is mis-stated.

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