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From: "Andrzej Jan Taramina" <andrzej@c...> > Seems that embedding Schematron assertions in an <appinfo> tag would > probably do the trick (and keeps the validation "logic" embedded in the > XMLSchema document), but is that the best way to handle such validation? > > Are there validation solutions "better" than Schematron for such a > requirement? XLinkIt is better than Schematron, as far as power and completeness, especially if you need to check constraints between multiple documents using a server. http://www.xlinkit.com/ But it does not embed in XML Schemas AFAIK and has a much steeper learning curve. Examplotron is better than Schematron if your document structures are fairly simple and your constraints are fairly simple. http://www.examplotron.org/ But it does not embed in XML Schemas AFAIK and only has a single implementation so far. I suspect you can use RELAX NG for that too. But I don't expect many people will be embedding RELAX schemas inside XML Schemas :-) > Would definitely appreciate some ideas/opinions/ruminations/best practices on > the "best" way to handle such validations. If you decide to adopt Schematron (+ DTDs, or +XML Schemas, or + RELAX) from the start, you will have more leeway to structure your documents naturally. Each schema language can do less. And you can rapidly add constraints to handle/expose particular issues. Cheers Rick Jelliffe Topologi, Pty. Ltd.
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