The Darwin Information Typing Architecture (DITA) 1.2 specification defines a set of document types for authoring and organizing topic-oriented information, as well as a set of mechanisms for combining, extending, and constraining document types.

The DITA 1.2 Specification can be downloaded from:

http://docs.oasis-open.org/dita/v1.2/spec/DITA1.2-spec.html

Note that this is a specification primarily for developers rather than an explanatory text for users, so if you are unfamiliar with DITA and its concepts it should be read in association with tutorial material.

Status

The DITA 1.2 specification has been approved by OASIS Members:

http://dita.xml.org/node/3106

Introductory Material

Several books have been written on DITA 1.2, including:

to be completed