A Document Type Definition (DTD) is a file (or several files) which contains a formal definition of a particular XML-based or SGML-based language. The DTD describes the allowed elements and their legal value types. DTDs are written to be machine sensible. Computer applications like browsers, editors, and parsers use DTDs to understand and enforce language compliance.
The TDML language is formally defined by the TDML DTD. This DTD was generated at the direction of the TDML Working Group under the Si2 Electronic Component Information eXchange (ECIX) Project.
For more information on XML, see: