ISSUE-182

Last Call Comment: Index Terms

State:

CLOSED

Product:

SKOS

Raised by:

Sean Bechhofer

Opened on:

2008-10-08

Description:

Raised by Michael Panzer [1]:


2. Index terms
--------------

An important part of many classification systems is an index, in the
case of the DDC its "Relative Index". Index terms associated with a
given class generally reflect several of the topics falling within the
scope of that class. There is no easy way of modeling this relationship
in SKOS:

Class/Concept:
616 Diseases

Index terms:
   Clinical medicine
   Diseases--humans--medicine
   Illness--medicine
   Internal medicine
   Physical illness--medicine
   Sickness--medicine

Currently, a possible workaround is to construct the complete Relative
Index as a separate skos:ConceptScheme and relate the concepts in these
two independent schemes by using mapping relations:

skosclass:hasIndexTerm rdfs:subPropertyOf skos:closeMatch .

skosclass:isIndexTermOf rdfs:subPropertyOf skos:closeMatch ;
  owl:inverseOf skosclass:hasIndexTerm .

<class/616> a skos:Concept ;
  skosclass:hasIndexTerm <index/Clinical%20medicine> ;
  skos:inScheme <classification> .

<index/Clinical%20medicine> a skos:Concept ;
  skosclass:isIndexTermOf <class/616> ;
  skos:inScheme <index> .

This seems to be a satisfactory best-practice solution in this case, but
it has broader implications as index terms are just one instance of 
Class-Topic Relations


[1] http://lists.w3.org/Archives/Public/public-swd-wg/2008Oct/0061.html

Related emails:

1. ISSUE-182: Last Call Comment: Index Terms (from dean+cgi@w3.org on 2008-10-08)
2. Re: SKOS comment: Last Call Working Draft (from sean.bechhofer@manchester.ac.uk on 2008-10-08)
3. Re: ISSUE-182: Last Call Comment: Index Terms (from aisaac@few.vu.nl on 2008-10-08)
4. LC Comments: Classification Schemes (from sean.bechhofer@manchester.ac.uk on 2008-10-09)
5. Re: LC Comments: Classification Schemes (from aisaac@few.vu.nl on 2008-10-13)
6. ISSUE-182 draft response (from aisaac@few.vu.nl on 2008-10-17)
7. ISSUE-182 new draft response (from aisaac@few.vu.nl on 2008-10-22)
8. meeting record: 2008-11-04 SWD telecon (from swick@w3.org on 2008-11-04)
9. [SKOS] Re: SKOS comment: Last Call Working Draft [ISSUE-182] (from aisaac@few.vu.nl on 2008-11-06)
10. [SKOS] Re: SKOS comment: Last Call Working Draft [ISSUE-182] (from aisaac@few.vu.nl on 2008-11-04)
11. [SKOS] Update on Last Call Comments (from alistair.miles@zoo.ox.ac.uk on 2008-12-02)

Related notes: