ISSUE-71

ParallelMappingVocabulary

State:

CLOSED

Product:

SKOS

Raised by:

Antoine Isaac

Opened on:

2008-01-16

Description:

Currently, the SKOS vocabulary includes two "parallel" sets of URIs vocabulary
for hierarchical and associative links between conceptual resources. The
semantic relation properties skos:semanticRelation, skos:broader, skos:narrower
and skos:related are mirrored in skos:mappingRelation, skos:broadMatch,
skos:narrowMatch and skos:relatedMatch.

A separate, parallel mapping vocabulary provides a convenient way to
differentiate links *within* a scheme from links *between* a scheme (given that
certain conventions of practice are followed). However, there may also be other
mechanisms for making such a differentiation that do not require a separate
vocabulary, by e.g. keeping links between concepts within a scheme in a separate
RDF graph from mapping links. 

With a separate vocabulary for mapping relations, a number of interactions
between the parallel vocabularies then have to be considered, which increases
the size and complexity of the SKOS data model. Many of these interactions have
not yet been considered by the Working Group, and as such the model currently
leads to a number of counter-intuitive results. E.g. 

<A> skos:broader <B> .
<A> skos:exactMatch <B> .

is consistent with the SKOS data model (this is one of a number of similar
scenarios). 

Should we keep skos:broadMatch, skos:narrowMatch and skos:relatedMatch? 

Or should we drop them, and use skos:broader, skos:narrower and skos:related for
mapping, providing guidance on how to make a distinction between intra-scheme
and inter-scheme links by managing RDF graphs (or some other mechanism)?

Related emails:

1. ISSUE-71: ParallelMappingVocabulary (from dean+cgi@w3.org on 2008-01-16)
2. ISSUE-74: MappingPropertyConventions (from dean+cgi@w3.org on 2008-01-16)
3. Re: ISSUE-74: MappingPropertyConventions (from aisaac@few.vu.nl on 2008-01-21)
4. Re: ISSUE-71: ParallelMappingVocabulary (from aisaac@few.vu.nl on 2008-01-21)
5. Several emails to reply to (from Margherita.Sini@fao.org on 2008-02-04)
6. Comment: ISSUE-71 (from rde2@utk.edu on 2008-02-09)
7. [SKOS] Issues Review [From Alistair] (from aisaac@few.vu.nl on 2008-02-17)
8. [SKOS] On ISSUE-71 ParallelMappingVocabulary and ISSUE-74 MappingPropertyConventions [From Alistair Miles!] (from aisaac@few.vu.nl on 2008-02-17)
9. Re: [SKOS] On ISSUE-71 ParallelMappingVocabulary and ISSUE-74 MappingPropertyConventions (from aisaac@few.vu.nl on 2008-02-17)
10. [SKOS] Proposal ISSUE 47 MappingProvenanceInformation (from aisaac@few.vu.nl on 2008-02-17)
11. RE: [SKOS] On ISSUE-71 ParallelMappingVocabulary and ISSUE-74 MappingPropertyConventions (from Margherita.Sini@fao.org on 2008-02-18)
12. Re: [SKOS] Proposal ISSUE 47 MappingProvenanceInformation (from agray@dcs.gla.ac.uk on 2008-02-18)
13. [SKOS] Closing ISSUE-71 ParallelMappingVocabulary (from aisaac@few.vu.nl on 2008-02-19)
14. [SKOS] Closing ISSUE-74 MappingPropertyConventions (from aisaac@few.vu.nl on 2008-02-19)
15. [SKOS] Closing ISSUE 47 MappingProvenanceInformation (from aisaac@few.vu.nl on 2008-02-19)
16. Re: [SKOS] Closing ISSUE-71 ParallelMappingVocabulary (from dlrubin@stanford.edu on 2008-02-19)
17. Re: [SKOS] Closing ISSUE-71 ParallelMappingVocabulary (from sean.bechhofer@manchester.ac.uk on 2008-02-20)
18. Re: [SKOS] Closing ISSUE-71 ParallelMappingVocabulary (from aisaac@few.vu.nl on 2008-02-20)
19. [SKOS] on ISSUE-71 and ISSUE-74 (from alistair.miles@zoo.ox.ac.uk on 2008-02-21)
20. [Fwd: [SKOS] Issues Review (from alistair.miles@zoo.ox.ac.uk on 2008-02-21)
21. [SKOS] Issues Review (from alistair.miles@zoo.ox.ac.uk on 2008-02-21)
22. Re: [SKOS] on ISSUE-71 and ISSUE-74 (from aisaac@few.vu.nl on 2008-02-22)
23. Re: [SKOS] on ISSUE-71 and ISSUE-74 (from schreiber@cs.vu.nl on 2008-02-27)
24. Re: [SKOS] on ISSUE-71 and ISSUE-74 (from aisaac@few.vu.nl on 2008-02-27)
25. RE: [SKOS] on ISSUE-71 and ISSUE-74 (from dstudhope@glam.ac.uk on 2008-02-28)
26. Meeting Record: 2008-02-27 SWD telecon (from ehs@pobox.com on 2008-03-01)
27. RE: [SKOS] on ISSUE-71 and ISSUE-74 (from sdclarke@lukehouse.demon.co.uk on 2008-03-03)
28. Minutes from 2008-03-18 telecon (from cred@loc.gov on 2008-03-19)
29. Comment: ISSUE-71 (from GK@ninebynine.org on 2008-03-31)
30. [ALL] Agenda - SWD telecon Apr 01 - 1500 UTC - Europeans back to normal time (from baker@sub.uni-goettingen.de on 2008-03-31)
31. Re: [ALL] Agenda - SWD telecon Apr 01 - 1500 UTC - Europeans back to normal time (from ekendall@sandsoft.com on 2008-04-01)
32. Minutes from 2008-04-01 telecon (from Margherita.Sini@fao.org on 2008-04-02)
33. [ALL] agenda 8 April telecon 1500 UTC (from schreiber@cs.vu.nl on 2008-04-07)
34. Re: [ALL] agenda 8 April telecon 1500 UTC (from ekendall@sandsoft.com on 2008-04-07)
35. Re: [ALL] agenda 8 April telecon 1500 UTC (from simone.onofri@gmail.com on 2008-04-08)
36. meeting record: 2008-04-08 SWD telecon (from swick@w3.org on 2008-04-08)
37. [ALL] Agenda - Apr 15 SWD telecon - 1500 UTC (from baker@sub.uni-goettingen.de on 2008-04-14)
38. RE: [ALL] Agenda - Apr 15 SWD telecon - 1500 UTC (from alistair.miles@zoo.ox.ac.uk on 2008-04-15)
39. Re: [ALL] Agenda - Apr 15 SWD telecon - 1500 UTC (from simone.onofri@gmail.com on 2008-04-15)
40. [SKOS] Issue owners - preparation for Washington (from baker@sub.uni-goettingen.de on 2008-04-15)
41. meeting record: 2008-04-15 SWD telecon (from vit.novacek@deri.org on 2008-04-15)
42. Re: [ALL] Agenda - Apr 15 SWD telecon - 1500 UTC (from ekendall@sandsoft.com on 2008-04-15)
43. Re: [SKOS] Issue owners - preparation for Washington (from aisaac@few.vu.nl on 2008-04-21)
44. [ALL] agenda 22 April telecon 1500 UTC (from schreiber@cs.vu.nl on 2008-04-21)
45. Re: [ALL] agenda 22 April telecon 1500 UTC (from jphipps@madcreek.com on 2008-04-22)
46. Re: [ALL] agenda 22 April telecon 1500 UTC (from ekendall@sandsoft.com on 2008-04-22)
47. meeting record: 2008-04-22 SWD telecon (from sean.bechhofer@manchester.ac.uk on 2008-04-23)
48. [ALL] Agenda - Apr 29 2008 SWD telecon - 1500 UTC (from baker@sub.uni-goettingen.de on 2008-04-28)
49. Re: [ALL] Agenda - Apr 29 2008 SWD telecon - 1500 UTC (from sean.bechhofer@manchester.ac.uk on 2008-04-29)
50. [SKOS] ISSUE-71, ISSUE-74 preparation for Washington (from alistair.miles@zoo.ox.ac.uk on 2008-04-30)
51. Re: [SKOS] ISSUE-71, ISSUE-74 preparation for Washington (from aisaac@few.vu.nl on 2008-05-01)
52. RE: [SKOS] ISSUE-71, ISSUE-74 preparation for Washington (from alistair.miles@zoo.ox.ac.uk on 2008-05-01)
53. meeting record: 2008-04-29 SWD WG (from jphipps@madcreek.com on 2008-05-01)
54. [ALL] agenda 13 May telecon 1500 UTC (from schreiber@cs.vu.nl on 2008-05-12)
55. Meeting record: 2008-05-13 SWD telecon (from diego.berrueta@fundacionctic.org on 2008-05-14)
56. Re: ISSUE-186: Last Call Comment: Mappings (from aisaac@few.vu.nl on 2008-10-17)

Related notes: