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Re: SKOS namspace for ORE was [ISSUE-77] [ISSUE-48]

From: Leonard Will <L.Will@willpowerinfo.co.uk>
Date: Fri, 25 Jan 2008 21:06:44 +0000
Message-ID: <AxFiZNEk9kmHFAFD@mail.willpowerinfo.co.uk>
To: public-esw-thes@w3.org

On Fri, 25 Jan 2008 at 14:00:38, Carl Mattocks 
<carlmattocks@checkmi.com> wrote
>Leonard et al:
>
>To help us focus on the boundary between a scheme for organising knowledge
>concepts and a scheme for cataloguing "documents" or resources ..
>
>would you agree that skos be a namespace Open Archives Initiative Object
>Reuse and Exchange ?
>
>http://www.openarchives.org/ore/0.1/toc
>... the ORE Model that makes it possible to associate an identity with
>aggregations of Resources and  provide descriptions of their structure and
>semantics.

I'm not familiar with the OAI-ORE model, but from the above it appears 
to be what we in the library/thesaurus community would call 
"cataloguing" or "collection level description". [Where by "collection" 
we mean an aggregation of resources, not the SKOS use of "collection" 
which we would call an "array" ... :-)  ]

I'm not clear why the ORE model restricts itself to aggregations of 
resources rather than individual resources. The distinction is not clear 
anyway - is a journal issue or conference publication a resource or an 
aggregation?

>... uses the following namespaces and prefixes to indicate
>those namespaces:
>
>Prefix Namespace URI Description
>dc http://purl.org/dc/elements/1.1/ Dublin Core elements
>dcterms http://purl.org/dc/terms/ Dublin Core terms
>ore http://www.openarchives.org/ore/terms/ ORE vocabulary terms

This one gives HTTP 404: not found. Do you mean

<http://www.openarchives.org/ore/vocabulary>  ?

>owl http://www.w3.org/2002/07/owl# OWL vocabulary terms
>rdf http://www.w3.org/1999/02/22-rdf-syntax-ns# RDF vocabulary terms

If OAI-ORE provides a format for cataloguing resources or collections of 
resources, then it would be sensible for it to be able to point to 
concepts held in a thesaurus or knowledge organisation scheme. If it 
needs to know the structure of that scheme in order to link to it 
properly, then it sounds as though an effective way of providing that 
information would be to specify the namespace of the KOS.

 From my superficial viewpoint, it seems that SKOS provides a scheme for 
organising knowledge concepts and OAI-ORE provides a scheme for 
cataloguing "documents" or resources. (Though perhaps it considers 
concepts to be resources too - slightly confusing.) As the KOS can be 
used with many different collections, it does not in general contain the 
linking information; that is stored in the catalogue records of the 
documents instead. In any specific implementation, though, the two can 
be closely integrated so that the link can be followed in either 
direction, from concept to resource or vice versa.

I am going away for a week tomorrow, so will probably not be able to 
continue this interesting discussion for a while.

Leonard
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Received on Friday, 25 January 2008 21:07:38 GMT

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