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Semantics Of Business Vocabulary And Rules — Open Issues

  • Acronym: SBVR
  • Issues Count: 4
  • Description: Issues not resolved
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Issues not resolved

Issues Descriptions

Correct the styling errors in Definition text

  • Key: SBVR15-98
  • Legacy Issue Number: 19901
  • Status: open  
  • Source: Business Rule Solutions, LLC ( Keri Healy)
  • Summary:

    Correctly style the text at the end of the Definition text of two entries on p. 36. The styling should not be all in ’keyword’ style.

  • Reported: SBVR 1.4 — Wed, 15 Feb 2017 05:00 GMT
  • Updated: Tue, 28 Feb 2017 15:16 GMT

Use of 'Classifies'

  • Key: SBVR15-97
  • Legacy Issue Number: 19902
  • Status: open  
  • Source: Business Rule Solutions, LLC ( Ron Ross)
  • Summary:

    Problems:

    1. By my count, the verb "classifies" appears 8 times in SBVR in stylized font, indicating there should be a defined verb concept for it. However, I do not find one.

    2. These 8 instances do not appear to me to necessarily conform to a single meaning. They should be reviewed if kept in stylized font.

    3. Issue 15-28 (was 19631) "Definition of 'categorization scheme contains category'" addressed a minor wording improvement for this verb concept. It has been noted that "divides" in that definition should probably be replaced by "classifies". However, that point was deferred to this new issue.

    Discussion:

    In SBVR, “classification” is a relationship between two concepts. That meaning is generally not what 'classification' means in natural language. Any formal definition of "classifies" should align itself with the existing meaning of "classification". Doing so, however, is likely to result in further misinterpretations.

    Recommendations:

    1. Remove the styling from the 8 existing uses of 'classifies'.

    2. Change "divides" in the definition of "categorization scheme contains category" to "classifies" (unstyled).

  • Reported: SBVR 1.4 — Wed, 22 Feb 2017 05:00 GMT
  • Updated: Thu, 23 Feb 2017 20:59 GMT

Rules Based on Implications

  • Key: SBVR15-87
  • Legacy Issue Number: 19900
  • Status: open  
  • Source: Business Rule Solutions, LLC ( Keri Healy)
  • Summary:

    On physical page p. 45 of Version 1.4 of SBVR, the Necessity listed under the entry for Implied Characteristic includes ”logical implication” as a defined (styled) term. However, there is no definition entry for “logical implication” in SBVR 1.4.

    Logical implications underlie a very important form of (business) rules. A standard covering rules from the business perspective is incomplete without appropriate treatment. Such treatment must fully explain what “logical implication” means ­ and does not mean ­ selectively for both behavioral and definitional rules. SBVR needs to address the fundamental semantics of rules based on implications.

  • Reported: SBVR 1.4 — Fri, 27 Jan 2017 05:00 GMT
  • Updated: Fri, 27 Jan 2017 18:07 GMT

Note for Advice of Permission

  • Key: SBVR15-86
  • Legacy Issue Number: 19899
  • Status: open  
  • Source: Business Rule Solutions, LLC ( Ron Ross)
  • Summary:

    Acceptance of the Resolution for 19840 under Ballot 4 in the second half of 2016 resulted in the following text being substituted for a Note in the entry for Advice of Possibility.
    Note: Every definitional rule implies an advice of possibility. Consider the definitional rule expressed as:
    It is necessary that each rental has exactly one car group.
    Alternatively:
    Each rental always has exactly one car group.
    This definitional rule implies an advice of possibility that can be expressed as:
    It is possible that a rental has exactly one car group.
    Alternatively:
    A rental can have exactly one car group.
    There is no practical reason, however, to express the advice of possibility implied by a definitional rule explicitly. In such cases, best practice generally favors keeping the number of elements of guidance to be managed to a minimum.
    The equivalent substitution needs to be done for Advice of Permission. It’s just a clarification of the Note, which is otherwise somewhat hard to decipher

  • Reported: SBVR 1.4 — Tue, 24 Jan 2017 05:00 GMT
  • Updated: Tue, 24 Jan 2017 19:32 GMT