• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint

Richness and Entropy

If you want to do something with a piece of information in an XML document, you must identify it. It doesn't matter whether you mark it up using elements or attributes, but if you haven't marked it up, you either won't be able to find it at all, and even if you can find it, you won't be able to do anything with it.

A DTD that contains a lot of (informative) markup is called a rich DTD. As the DTD designer, you will always face a difficult compromise between the complexity of the DTD and the information richness of XML documents that conform to that DTD. Where humans are the authors of those documents, the complexity of the DTD can become a major obstacle.


PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint