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RE: Concurrent namespaces for Creative Commons ontology

From: Søren Roug <Soren.Roug@eea.europa.eu>
Date: Tue, 21 Dec 2010 14:07:33 +0100
To: Bernard Vatant <bernard.vatant@mondeca.com>, Linking Open Data <public-lod@w3.org>
CC: "me@aaronsw.com" <me@aaronsw.com>, "nathan@yergler.net" <nathan@yergler.net>
Message-ID: <ECDBB484CB145E429AAB0661F935E4E302879F6B7FFA@SLOTHMAIL.eea.eu.int>
According to footnote 8 of http://wiki.creativecommons.org/images/d/d6/Ccrel-1.0.pdf :

8 ... CC initially used the http://web.resource.org/cc/ namespace, migrating to http://creativecommons.org/ns# for superior human interaction with the vocabulary when it became apparent RDFa would facilitate this. In 2004 the Dublin Core Metadata Initiative approved a "license" refinement of its "rights" term (see http://dublincore.org/usage/decisions/2004/2004-01.Rights-terms.shtml). Had http:
//purl.org/dc/terms/license existed in 2002, CC would not have defined http://web.resource.org/cc/license.
Thanks to the extensibility properties of RDF, http://creativecommons.org/ns#license describes its relationship
to each of these other properties.
Sincerely yours / Med venlig hilsen, Søren Roug <soren.roug@eea.europa.eu<mailto:soren.roug@eea.europa.eu>>
European Environment Agency, Kongens Nytorv 6, DK-1050 Copenhagen K
Tel: +45 2368 3660 Jabber: roug@jabber.eea.europa.eu<mailto:roug@jabber.eea.europa.eu>
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From: public-lod-request@w3.org [mailto:public-lod-request@w3.org] On Behalf Of Bernard Vatant
Sent: 21 December 2010 10:26
To: Linking Open Data
Cc: me@aaronsw.com; nathan@yergler.net
Subject: Concurrent namespaces for Creative Commons ontology

Hi folks

It seems that there are two concurrent publications and namespaces for the Creative Commons Rights Expression Language.

http://creativecommons.org/schema.rdf uses http://creativecommons.org/ns#<http://creativecommons.org/ns>
http://web.resource.org/cc/schema.rdf uses http://web.resource.org/cc/

The first one looks at first sight more reliable since it is maintained by Creative Commons folks themselves
It is apparently the namespace underlying CC tag on CKAN packages http://ckan.net/tag/format-cc
Datasets under this tag indeed use it, such as Eurostat or Geospecies
(and BTW it would be great if CKAN tags pages could explicit the vocabulary namespace underlying the tag, if any)

OTOH I found the second one to be used by a bunch of more or less famous ontologies such as:

BIO http://purl.org/vocab/bio/0.1
Music Ontology http://purl.org/ontology/mo/
FRBR http://purl.org/vocab/frbr/core
Review Ontology http://purl.org/stuff/rev
Talis Address Schema http://schemas.talis.com/2005/address/schema
VANN http://purl.org/vocab/vann

So I wonder ... I cc people behind both vocabularies, maybe they can do something about it?



Bernard Vatant
Senior Consultant
Vocabulary & Data Engineering
Tel:       +33 (0) 971 488 459
Mail:     bernard.vatant@mondeca.com<mailto:bernard.vatant@mondeca.com>
3, cité Nollez 75018 Paris France
Web:    http://www.mondeca.com
Blog:    http://mondeca.wordpress.com
Received on Tuesday, 21 December 2010 13:11:09 UTC

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