Re: If I want to use catalogs for XSDs, must document instance
At 2012-04-23 23:44 +0300, Victor Porton wrote: >23.04.2012, 23:28, "Liam R E Quin" <email@example.com>: > > On Mon, 2012-04-23 at 12:31 +0200, Jirka Kosek wrote: > > > >> Might be I'm not understanding you correctly Liam, but IMHO namespace > >> URI is perfect way to *indirectly* say where the schema is located. > >> > >> Good XML application support mapping file where namespace URI can be > >> mapped to schema which should be used for validation. > > > > Yes, that aspect is fine. Blindly dereferencing the namespace and > > expecting to find a schema there is what I was saying is not fine. > >I am writing a standard about what should be located at namespace URLs. Why compete with RDDL? http://www.rddl.org With RDDL you simultaneously get both human readable and machine readable information about the XML vocabulary. RDDL attributes are simply added to XHTML pages. OASIS Open uses the RDDL specification and here are the namespace URI pages for two of the standard XML vocabularies I've worked on in the code list technical committee: http://docs.oasis-open.org/codelist/ns/genericode/1.0/ http://docs.oasis-open.org/codelist/ns/ContextValueAssociation/1.0/ I've published a free stylesheet to help people write RDDL pages for their namespace URIs: http://www.CraneSoftwrights.com/resources/#showrddl There is no standard layout for an XHTML/RDDL page ... it can be whatever you want and you can point to whatever resources you want. It is all useful information and both human and machine discoverable through the namespace URI. >This should contain not only schemas (of any >kind) but also rules for transformations between different namespaces. It shouldn't contain anything but pointers to all of the possible things that might be of interest to users of the XML vocabulary. >I think this is an important standard (when I >will release a good draft), but we need work on >its promotion to become an agreed industry >standard. Your help to promote it could be essential. I think promoting something that competes with an established practice doesn't help the existing community of users. I hope this is considered helpful, especially if you've not heard of RDDL before. . . . . . . . . . . Ken -- Public XSLT, XSL-FO, UBL and code list classes in Europe -- May 2012 Contact us for world-wide XML consulting and instructor-led training Free 5-hour lecture: http://www.CraneSoftwrights.com/links/udemy.htm Crane Softwrights Ltd. http://www.CraneSoftwrights.com/x/ G. Ken Holman mailto:gkholman@CraneSoftwrights.com Google+ profile: https://plus.google.com/116832879756988317389/about Legal business disclaimers: http://www.CraneSoftwrights.com/legal
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