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On Fri, 9 Jul 1999, Andrew Layman wrote: > Adding to what David said, W3C management have made it clear that the W3C is > not going to generally be in the position of endorsing domain-specific DTDs > or schemas. This means that DTDs and schemas are going to need other > development and cataloging services, e.g. Oasis and BizTalk. There's a big distinction there between development and cataloguing; simply being able to _find_ pertinent DTDs and schemata doesn't strike me as a great value added service. Development, on the other hand.... We already have an industry focussed around discovery and cataloguing: web search engines, portals, directories. We're already seeing things such as specialised MP3 search options as natural extensions of these; since XML schemas are just more Web data, it seems to me likely that a few such services will start offering schema-oriented searches. Trust is of course a big issue -- but if professional societies and industry bodies could circulate (by email, NNTP, CD-ROM) digitally signed schemata and inter-schema crosswalks, these would fit very well into the search-engine oriented approach to discovery. Oasis, BizTalk might take on this role, but I'd imagine the existing engines would be well set up to compete. Development, discussion, data modelling and consensus building, (particularly regarding vocabulary overlap), seems of far more importance. And this latter is a very human, social service which might(?I've no idea) turn out to need input from more stakeholders than are inclined to pay to join. It's this "community centre" aspect, and prospect of such communities pragmatically blessing certain schemas, which seems a plausible role for OASIS, BizTalk etc. Any techno-centric database, search, cataloguing role seems to be in direct competion with the major search services. I can't see any technical reason why solutions for discovery and trust w.r.t. normal XML (and HTML and MP3...) documents won't also serve equally well for discovery and trust management of XML schemata, mappings, crosswalks, business rules etc etc. After all, wasn't this synergy the whole point of moving to an XML syntax for next-generation DTDs? (ie. to allow the special case to borrow technology from the general one). IMHO, Dan -- Daniel.Brickley@b... Institute for Learning and Research Technology http://www.ilrt.bris.ac.uk/ University of Bristol, Bristol BS8 1TN, UK. phone:+44(0)117-9287096 xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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