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Re: Using RDF in XML documents

• To: "Morcom, Harvey" <Harvey.Morcom@K...>
• Subject: Re: Using RDF in XML documents
• From: Jonathan Borden <jonathan@o...>
• Date: Mon, 01 Sep 2003 20:13:55 -0400
• Cc: xml-dev@l...
• In-reply-to: <471D4FBBE091D6119D8D0002A560071EC41B69@UKSSQEXC02>
• References: <471D4FBBE091D6119D8D0002A560071EC41B69@UKSSQEXC02>
• User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5b) Gecko/20030723 Thunderbird/0.1

Morcom, Harvey wrote:

>...
><Document>
>	<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.0/">
>	  <rdf:Description rdf:about="RDF Test File">
>	    <dc:title> RDF Test File </dc:title>
>	    <dc:creator> John Smith </dc:creator>
>	    <dc:date> 2003-09-01 </dc:date>
>	  </rdf:Description>
>	</rdf:RDF>
>	<Section>
>	etc....
>
Right, except that you probably want to use <rdf:Description 
rdf:about=""> to refer to the "current document"

>
>I assume I would then need to add the RDF vocabulary to my XML Schema in order for the XML file to be valid?
>

Yes, while it is not possible to write an XML Schema for general 
RDF/XML, it certainly is possible to write an XML Schema for a specific 
fragment of RDF so embedded in an XML document.

>
>Finally, how does the RDF Schema fit in?
>  
>
I'd not worry about this for your specific application. "RDF Schema" is 
somewhat of a misnomer in the sense that it doesn't specify syntactic 
constraints, rather a mechanism of developing vocabularies and 
classifications e.g. ontologies. The <a 
href="http://www.w3.org/TR/owl-guide/">OWL guide</a> explains how such 
things might be used.

Jonathan

• References:
  • Using RDF in XML documents
    • From: "Morcom, Harvey" <Harvey.Morcom@K...>

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