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RE: [VM] SKOS dereferencing (was: Telecon on Tuesday, 27 September)

From: Ralph R. Swick <swick@w3.org>
Date: Tue, 27 Sep 2005 08:52:46 -0400
Message-Id: <>
To: "Miles, AJ (Alistair)" <A.J.Miles@rl.ac.uk>
Cc: <public-swbp-wg@w3.org>, <public-esw-thes@w3.org>

At 12:47 PM 9/27/2005 +0100, Miles, AJ (Alistair) wrote:
>To bring into line with FOAF & DCMI, I would like to propose a change to this dereferencing policy.  I propose the following:
>1. A GET against http://www.w3.org/2004/02/skos/core with 'Accept: application/rdf+xml' redirects (via response code 303) to the latest snapshot of the SKOS Core RDF description (currently http://www.w3.org/2004/02/skos/core/history/2005-03-31).
>(This ensures that provenance of RDF statements about SKOS Core classes & props is always a historical (date-stamped) snapshot, allowing run-time distinction between 'versions'.)

nice idea.

I note the following in http://www.w3.org/2004/02/skos/core/history/2005-03-31 :

1. <rdf:RDF xml:base="http://www.w3.org/2004/02/skos/core">
2.   <rdf:Description rdf:about="">
3.     <dc:title xml:lang="en">SKOS Core Vocabulary</dc:title>
4.     <dc:description xml:lang="en">
5.      An RDF vocabulary for encoding simple concept schemes such as thesauri and subject heading lists.
6.     </dc:description>
7.     <dc:creator>Alistair Miles</dc:creator>
8.     <dc:creator>Nikki Rogers</dc:creator>
9.     <dc:creator>Dave Beckett</dc:creator>
10.    <dc:contributor>
11.     Members of the public-esw-thes@w3.org mailing list.
12.    </dc:contributor>
13.    <dct:modified>2005-03-22</dct:modified>
14.    <foaf:homepage rdf:resource="http://www.w3.org/2004/02/skos/core/"/>

Line 1 is fine, as it allows convenient relative URIs in the rest of
the document.  However line 2 is suspect as, for example, the
date modified should apply (only?) to this historical version.
I suspect that lines 7-9 probably also should be properties of
a particular historical version rather than the canonical namespace.

Received on Tuesday, 27 September 2005 12:56:33 UTC

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