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RelaxNG – The Best Way To Write XML Schemas

In a previous article I explained why XML Schema 1.0 is incapable of implementing the XML ignore rule and why this means that validating multiple versions of the same document is impossible using XML Schema in the general case. In this article I look at RelaxNG and show why it can handle multiple version validation without a hitch. I then discuss how to use RelaxNG in the real world, including with Web Services and conclude that the time has come for the XML and especially Web Services community to transition from XML Schema 1.0 to RelaxNG.

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