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Q5210 What are XML vocabularies?

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XML vocabularies are the elements used in particular applications or data formats - the definitions of the meanings of those formats. For example, in CDF, element names such as <SCHEDULE>, <CHANNEL>, and <ITEM> make up the vocabulary for describing collections of pages, when these pages should be downloaded, etc.

Vocabularies, along with the structural relationships between the elements, are defined in XML DTDs or XML schemas.

©2018 Martin Webb