[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Linkbases, Topic Maps,and RDF Knowledge Bases -- help me understand,
Michael Champion wrote: > So, does the world need all three? Just RDF? RDF+XLink? RDF+XTM? It occurs to me that there's another difference between XLink and RDF: XLink "knows about" the internal structure of XML documents, whereas RDF only "knows about" URIs. XLink expresses relationships between nodes in documents; the fact that these nodes may be identified by URIs is secondary. RDF expresses relationships between resources, and the fact that a resource's URI may happen to contain an XPointer identifying a specific node is completely irrelevant. For example, in XLink <URL: http://www.foo.com/doc.xml#bar > and <URL: http://www.foo.com/doc.xml#xpointer(id('bar')) > mean the same thing, but in RDF they're different. --Joe English jenglish@f...
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