DITA is an XML topic-based data architecture for authoring and publishing content. Originally developed by IBM in 1999, many third party tools now support DITA authoring, such as Adobe FrameMaker, XMetaL, Arbortext, Quark XML Author, Oxygen XML Editor, SDL Xopus and CSOFT TermWiki.

With single-source publishing and systematic topic reuse, DITA allows organisations to improve content development consistency and efficiency. DITA also helps save localization costs by reducing DTP efforts on the translated content.