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Dear all, I am reviewing some schemas following MEL Schema specification. I am kind of lost in a sense that my original thoughts about XML schema definition is that it is to define a sufficient but minimum number (ideally) of tags for my application domains. I used OO approach for analysis even designing schemas following XML-Data Reduced but never strictly mapped between them. Now with XML Schema which has lots of OO concepts in it, the schemas I am reviewing now tend to be bigger with finer classes, more relationships, more hierarchy, inheritance and so on because it follows the approach for defining a OO software system. It seems to me that defining XML data files (for data exchange) is different from defining OO software systems, but I can tell exactly what the optimization rules are to develop XML schema from OO perspectives. Help me out? Yimin Zhu
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