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   RE: Namespaces and Schemes

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  • From: Jonathan Borden <jborden@mediaone.net>
  • To: xml-dev@lists.xml.org
  • Date: Wed, 29 Nov 2000 22:28:27 -0500

Henry S. Thompson wrote:
>    4) An application may attempt to dereference namespace URIs and use
>       schema documents found as a result.

Or fragments of schema documents which define types.

In particular the RDF definition of a typed node associates the type of an
element to the URI formed by concatenating the element name to the namespace
URI. This works fine when RDF namespace URIs end in '#' as is recommended
... in this case the URI reference may point to a type definition (e.g. an
rdfs:Class or rdfs:Property derived type). I have suggested that when
namespace URIs end in other than a Letter or '_' that an '#' be inserted
between the namespaceURI and element name to form a URI reference defining
the type (see http://www.openhealth.org/RDF/QNameToURI.htm )

Jonathan Borden
The Open Healthcare Group


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