Document Type Definition

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Definition by Wikipedia:

Document Type Definition (DTD), defined slightly differently within the XML and SGML specifications, is one of several SGML and XML schema languages, and is also the term used to describe a document or portion thereof that is authored in the DTD language.

A DTD is primarily used for the expression of a schema via a set of declarations that conform to a particular markup syntax and that describe a class, or type, of SGML or XML documents, in terms of constraints on the structure of those documents.

A DTD may also declare constructs that are not always required to establish document structure, but that may affect the interpretation of some documents. ( Read more)

See Also

• Documentation Team is using NovDoc DTD.

External Links

• DTD definition on Wikipedia.
• DTD tutorial on www.w3schools.com.
• NovDoc DTD