[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XML complexity, namespaces (was WG)
At 23:53 19/03/1999 , David Megginson wrote: | Almost correct. One expensive disadvantage of SGML (until WebSGML) is | that it requires full DTD conformance at every stage of production; as | a result, if your production chain consists of ten physical steps, | writing out SGML at each stage, you *must* have DTDs for all of the | intermediate steps. This one constraint can add $100K or more to a | large enterprise SGML project, since DTD writers are expensive to hire | (and a single, configured DTD becomes heavily obfuscated so that it | can almost never be maintained in-house). I'd like to take this point up. Having done a transformation with 12 steps in the chain, I would disagree that the DTD becomes a big problem. If you're using a tool like Omnimark, you can choose to view the document as SGML or text. In general, a lot of the steps use the latter, with some simple find-and-replace regexps. So in practice, we just ended up with about 5 DTDs that were very close to each other. Not a lot of work. And it did ensure that all was correct at each stage, catching errors in a most satisfying way. Cheers, James ------------------------- James Robertson Step Two Designs Pty Ltd SGML, XML & HTML Consultancy http://www.steptwo.com.au/ jamesr@s... "Beyond the Idea" ACN 081 019 623 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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