[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Parser compliance
Tim Bray <tbray@t...> writes: > I have often wondered where this myth arose that validating against > a DTD will tell you, in useful real-world terms, "what's wrong with > your XML". That's probably a rhetorical question, but for those new to the field (i.e. who didn't come from SGML), SGML consultancies throughout the 1990's made an enormous portion of their money writing (and rewriting and rerewriting and rererewriting) massive and incomprehensible DTDs for government, military, and big industry, so naturally they (OK, "we") hyped the importance of DTDs as the cornerstone of any system. In XML, I've noticed that most of my consulting work has to do with designing running systems and integrating components, and that document-type design is only a small (though important) part of that. In brief, then, SGML systems tend to be DTD-centric while XML systems tend to be component-centric. There's nothing in SGML or XML that forces that distinction; it's just the way things fell out. Tim's right -- DTD-based validation will tell you only a tiny portion of what's wrong with your document, though that portion can be helpful in some circumstances. All the best, David -- David Megginson david@m... http://www.megginson.com/ 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 unsubscribe, mailto:majordomo@i... the following message; unsubscribe 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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