http://www.quark.com/Solutions/Applications/DITA.aspx
Darwin Information Typing Architecture (DITA) is an international XML standard for writing and delivering information. Originally designed for technical publications, DITA is being used for a variety of document types including marketing materials, policies and procedures, customer communications, and many others.
Quark offers software for authoring DITA information within Microsoft Word and publishing DITA information to many different media types, both print and electronic.
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Quark's solution also includes:
DITA map creation and editing, allowing complete DITA publications to be created entirely within Microsoft Word
Support for commenting and change tracking using the familiar Microsoft Word user interface
Publishing through Quark's optional DITA publishing module
Centralized content storage and archiving through Quark's content management system partners: Microsoft SharePoint®, EMC® Documentum®, and IBM® FileNet® Content Manager