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2005 W3C XML Schema Workshop Microsoft Implementors’ User Experience Report

2005 W3C XML Schema Workshop Microsoft Implementors’ User Experience Report. Derek Denny-Brown Microsoft. XML Schema is Out There. XML Schema support shipped in many products. Customers are using it. None of the alternatives meet all our scenarios

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2005 W3C XML Schema Workshop Microsoft Implementors’ User Experience Report

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  1. 2005 W3C XML Schema WorkshopMicrosoft Implementors’User Experience Report Derek Denny-Brown Microsoft

  2. XML Schema is Out There • XML Schema support shipped in many products. Customers are using it. • None of the alternatives meet all our scenarios • Breaking changes / revisions will take years to roll out and will be released unevenly across products • Any new product that integrates will need to support both old and new

  3. Complexity = Incompatibility • It has taken years to resolve crucial misunderstandings and inconsistencies in the standard • 5 years later, vendor incompatibility continues to confound customers • Customers require tools for even the most basic tasks

  4. Nitty Gritty • UPA vs Wildcards (Versioning) • Derivation / Substitution-Groups • Physical representation ambiguous. • Redefine (enough said) • xs:all too weak • co-occurrence constraints

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