Derivation by Restriction
Hi all. During the definition of a schema for instances product of Object serialization, I begin to wonder about the implications of derivation by restriction in XML: Schema when used with OO apps... Is derivation by restriction necessary/desirable? could anyone please explain the need behind it a bit? Is D by R a "threat" to the conformance principle when using schema to define object hierarchies? just oblique thoughts... ;) comments? Fabio  loosely put, the traditional conformance principle in OO states: If B inherits from A, B can be used wherever A can be used. -- Fabio Arciniegas A. Viaduct Technologies, Inc. fabio@v... Software Engineer Interests: XML, Wittgenstein and just about everything in between. Oblique Strategy of the day: "Feed the recording back out of the medium" 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/ or CD-ROM/ISBN 981-02-3594-1 Unsubscribe by posting to majordom@i... the message unsubscribe xml-dev (or) unsubscribe xml-dev your-subscribed-email@your-subscribed-address Please note: New list subscriptions now closed in preparation for transfer to OASIS.
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