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Resource Description Framework : Infrastructure de description de ressources.
Développer un "Web sémantique" en permettant :
RDF définit des métadonnées (description de données)
RDF utilise XML.
Un exemple de document RDF est :
<?xml:namespace href="http://www.w3c.org/RDF/" as="RDF"?>
<?xml:namespace href="http://purl.oclc.org/RDF/DC/" as="DC"?>
<RDF:RDF>
<RDF:Description RDF:HREF="http://www.ariadne.ac.uk/" RDF:BAGID="ARIADNE_RDF">
<DC:Title>Ariadne - The Web Version</DC:Title>
<DC:Subject>journal, magazine, elib, electronic libraries, digital libraries, networking, Web, IT, higher education</DC:Subject>
<DC:Description>A Web and print magazine of Internet issues for librarians and information specialists</DC:Description>
<DC:Publisher>UKOLN, University of Bath</DC:Publisher>
<DC:Type>Text.Serial.Magazine</DC:Type>
<DC:Format>text/html</DC:Format>
<DC:Identifier>URN:ISSN:1361-3200</DC:Identifier>
</RDF:Description>
<RDF:Description RDF:HREF="#ARIADNE_RDF">
<DC:Creator RDF:HREF="http://www.ukoln.ac.uk/ukoln/staff/a.powell.rdf#Andy_Powell"/>
<DC:Date>
<RDF:Description>
<DC:Date.Type>Created</DC:Date.Type>
<DC:Date.Value>1998-03-07</DC:Date.Value>
</RDF:Description>
</DC:Date>
</RDF:Description>
</RDF:RDF>
Un sous-ensemble de RDF est RSS.
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