The Darwin Information Typing Architecture (DITA) is an XML-based architecture for authoring, producing, and delivering technical information. It divides content into small, self-contained topics that can be reused in different deliverables. The extensibility of DITA permits organizations to define specific information structures and still use standard tools to work with them.
A file is considered to be a DITA topic document when either of the following occurs:
The default schema used for DITA topic documents is located in ${frameworks}/dita/dtd/ditabase.dtd, where ${frameworks} is a subdirectory of the Oxygen XML Developer install directory.
The default XML catalog is ${frameworks}/dita/catalog.xml.