Transcription: Hi, I'm David Harding with Keystone Learning Systems. In our previous course we talked a lot about content modeling. We're going to continue that discussion, drill down a little further on element declarations, but then we're going to talk about how to declare your attributes and the various attribute types that are available. Then we're going to talk about a really powerful feature of XML which is external entities. Being able to reference external documents within an document and create a logical entity, a logical structure that combines all of the external documents that you stipulate. Then ...
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