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RE: [xml-dev] The Semantic Web: An Introduction
To: James Strachan <james_strachan@-----.--.-->,"Sean B. Palmer" <sean@-------------.--->, xml-dev@-----.---.---
Date: 9/18/2001 8:49:00 AM
One should not confuse "data on the web" as a purely Semantic Web notion. Providing a semantic cue and a structure to data is markup in its most basic form and most other databases as well. Ontologies as such, are classification systems and not novel. So far, the distinguishing charcteristic of the Semantic Web effort is to add the well-known but non-interoperable technologies of inferencing engines to the web architectures. A cursory review suggests that RDF is well suited to inference-capable databases (eg, expert system types with chaining, a la prolog). Given that XML is only a syntax for creating languages, it is the responsibility of the application developer to determine the suitability and applicability of any given XML-conformant language. A pure RDF web is very unlikely. How data strutured with an XML Schema and systems using RDF classifications are to interoperate is a good question that should be explored by this list. Len http://www.mp3.com/LenBullard Ekam sat.h, Vipraah bahudhaa vadanti. Daamyata. Datta. Dayadhvam.h -----Original Message----- From: James Strachan [mailto:james_strachan@y...] Are there Semantic Web efforts out there to assume the worst case, that data is available in 'just' XML along with maybe some kind of schema (DTD / RelaxNG / XML Schema), and to just adorn and work with that, rather than wait for the world to go RDF? Or to generate RDF given an instance XML document based on an XSLT / XPath / Schematron kind of mechanism?