From: Pat Hayes (phayes@ai.uwf.edu)
Date: 10/02/01
> > [Dan Connolly] >> >It's also possible to design a language where the type of >> >a literal may *depend* on a declaration from an XML schema: >> > >> > <kr:KRLang xmlns:rdf="http://...new-kr-lang..." >> > xmlns:ex="http://example/vocab"> >> > <ex:Person> >> > <ex:name>John Doe</ex:name> >> > <ex:shoeSize>10</ex:shoeSize> >> > </ex:Person> >> > >> >so that the "10" above is not a logical constant at all; >> >not until you find a/the schema for http://example/vocab >> >do you know how to parse/interpret "10"... i.e. the >> >meaning of that chunk of XML is dependent on all the >> >trust issues around following links from one document >> >to another (not to mention a complete implementation >> >of XML Schema, an effort several orders of magnitude >> >larger than an RDF 1.0 parser). >> > >> >This sort of language is not a candidate for a future >> >version of RDF: it fails to meet >> >one of the basic requirements of RDF: that an RDF document >> >stands on its own as a logical formula. > >I fail to see how this follows. I think the point is that it wouldn't follow if RDF were identified with XML/RDF, but that identification is itself in violation of the 'stand-alone' idea. Pat -- --------------------------------------------------------------------- IHMC (850)434 8903 home 40 South Alcaniz St. (850)202 4416 office Pensacola, FL 32501 (850)202 4440 fax phayes@ai.uwf.edu http://www.coginst.uwf.edu/~phayes
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