Transcription: At this point you may be saying to yourself, well that's just great, valid documents have valid content, but type checking in XML and element types and attribute type capabilities are pretty weak. Yeah, they are pretty weak. We're not talking about data level data integrity here. That's very different. There's no data integrity rules that you're going to be applying to an XML document. XML is very lenient as to the types of content. Basically what we're talking about here is making sure that what limited types there are, that it's adhering to it. That's about it.
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