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the meaning of RDF tokens

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Wed, 05 Feb 2003 10:55:22 -0500 (EST)
Message-Id: <20030205.105522.12923177.pfps@research.bell-labs.com>
To: www-rdf-comments@w3.org


The RDF primer, in Section 2.2, states

        Using URIrefs as subjects, predicates, and objects in RDF
        statements allows us to begin to develop and use a shared
        vocabulary on the Web, reflecting (and creating) a shared
        understanding of the concepts we talk about. For example, in
        the triple
		ex:index.html  dc:creator  exstaff:85740 .
        the predicate dc:creator, when fully expanded as a URIref, is an
        unambiguous reference to the "creator" attribute in the Dublin Core
        metadata attribute set (discussed further in Section 6.1, a
        widely-used set of attributes (properties) for describing
        information of all kinds. The writer of this triple is effectively
        saying that the relationship between the Web page (identified by
        http://www.example.org/index.html) and the creator of the page (a
        distinct person, identified by
        http://www.example.org/staffid/85740) is exactly the concept
        identified by http://purl.org/dc/elements/1.1/creator. Moreover,
        anyone else, or any program, that understands
        http://purl.org/dc/elements/1.1/creator will know exactly what is
        meant by this relationship.

This appears to me to state that the meaning of tokens in RDF *is*
their commonly agreed on meaning, regardless of how that meaning is
specified.  If so, this means that RDF reasoners are responsible for
implementing this meaning.  

Is this actually the case?  If so, how can RDF reasoners be implemented?
If not, please explain what the above quote means.
Received on Wednesday, 5 February 2003 10:55:32 GMT

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