XML Schemas
As you know, all XML documents must be well formed. For example, tags cannot overlap. They must specify some sort of hierarchy. But often the benefits of producing a well-formed document aren't enough. Saying that the XML elements cannot overlap is not as useful as saying that the XML elements cannot overlap and must follow a specific order or use certain tag names. The XML Schema specification identifies an XML vocabulary that you can use to create other XML vocabularies. In doing so, you tell consumers of your schema how your XML should be constructed to be considered valid by your design.
Understanding XML Schemas
Many times as you develop XML documents, you often need to place constraints on the way data is represented in the ...
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