External Identifiers RE: Announcing SKOS-Core 1.0 - an RDF Schema for Thesauri

A remark about section 3.4 External Identifiers
http://www.w3c.rl.ac.uk/SWAD/skos/1.0/guide/draft01.html#3.4

Just providing the value of an external ID seems rather thin for efficient identification
purpose. An external ID is more useful if the source is known. And you can get several of
those, so you need to sort them out. Seems that dc:source would make it, for example:

	<skos:Concept rdf:about="http:/example.com/concept/0001">
		<skos:externalID>
			<dc:source>Food and Drug Administration Subject Headings</dc:source>
			<skos:externalIDValue>A.01.0001</skos:externalIDValue>
		</skos:externalID>
		<skos:externalID>
			<dc:source>World Cooking Thesaurus</dc:source>
			<skos:externalIDValue>UK.04.563</skos:externalIDValue>
		</skos:externalID>
		<skos:prefLabel>Bangers and mash</skos:prefLabel>
		<skos:altLabel>Sausage and mash</skos:altLabel>
		<skos:altLabel>Sausage and mashed potato</skos:altLabel>
		<skos:inScheme rdf:resource="http:/example.com/thesaurus"/>
	</Concept>

Of course having source identified by an URI rather than a name would be even better ...

Bernard Vatant
Senior Consultant
Knowledge Engineering
Mondeca - www.mondeca.com
bernard.vatant@mondeca.com


> -----Message d'origine-----
> De : public-esw-request@w3.org [mailto:public-esw-request@w3.org]De la
> part de Miles, AJ (Alistair)
> Envoyé : lundi 29 mars 2004 12:08
> À : 'public-esw@w3.org'
> Objet : Announcing SKOS-Core 1.0 - an RDF Schema for Thesauri
>
>
>
>
> > Anouncing: SKOS-Core 1.0 - an RDF Schema for thesauri and related
> > knowledge organisation systems.
> >
> > The SKOS-Core 1.0 schema can be found at
> >
> > http://www.w3.org/2004/02/skos/core
> >
> > The SKOS-Core 1.0 Guide accompanying the schema can be found at
> >
> > http://www.w3.org/2001/sw/Europe/reports/thes/1.0/guide/
> >
> > Also, the website for the SWAD-Europe Thesaurus Activity has moved to
> >
> > http://www.w3.org/2001/sw/Europe/reports/thes/
> >
> >
> > SKOS stands for Simple Knowledge Organisation System.  The Goal of
> > SKOS-Core is to provide a framework for bringing existing knowledge
> > organisation systems such as thesauri and the semantic web together.
> >
> > SKOS-Core exploits the features of RDFS and OWL to provide a flexible and
> > extensible framework within which different types of KOS can interoperate.
> > SKOS-Core is ideal for modelling thesauri, and can cope with the
> > variations commonly found in thesaurus design and structure.
> >
> > Yours on behalf of the Semantic Web Advanced Development for Europe
> > project [1],
> >
> > Alistair Miles.
> > Nikki Rogers.
> > Dave Beckett.
> >
> > [1] SWAD-Europe <http://www.w3.org/2001/sw/Europe/>
> >
> > ---
> > Alistair Miles
> > Research Associate
> > CCLRC - Rutherford Appleton Laboratory
> > Building R1 Room 1.60
> > Fermi Avenue
> > Chilton
> > Didcot
> > Oxfordshire OX11 0QX
> > United Kingdom
> > Email:        a.j.miles@rl.ac.uk
> > Tel: +44 (0)1235 445440
> >
> >
>

Received on Thursday, 1 April 2004 05:56:03 UTC