[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Success factors for the Web and Semantic Web
At 01:54 PM 12/21/00 +0000, Sean B. Palmer wrote: >To me, TimBL's vision is clear but the process isn't. Let's clarify thet: >There are just a few problems with the Semantic Web vision that need to be >solved (not moaned at, or used as evidence to show how the SW will fail!):- > > 1. A Namespace is not definitive. Two different langauges point > to the same NS, but it has no Schema - which one is correct? > (Action: make sure that namespaces are dereferencable) > 2. A Namespace is still not definitive. Tim's example was of a URI > for Zip codes. There could be hundreds of them: no one is going > to use the same one! Or you could just say that the relationship of a URI to information resources is very weakly defined, and that's something the URI community appears to have little interest in changing. Yes, I'm aware of DDDS, content-negotiation, and other related projects, but while they help, URIs in general remain deeply amorphous. It's not yet clear whether the problems lies in URIs as a concept (my opinion) or people's interpretations of/applications of URIs (what I'd call the URI community opinion), but I'd suggest that URIs are too amorphous to be meaningful as identifiers outside of tightly controlled contexts. As a result, anything built on URIs is going to have problems like (and beyond) the problems you describe above. I don't mind if they block the Semantic Web, but I'm thoroughly frustrated with the complications they've introduced for XML itself. Simon St.Laurent XML Elements of Style / XML: A Primer, 2nd Ed. XHTML: Migrating Toward XML http://www.simonstl.com - XML essays and books
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