DITA (Darwin Information Typing Architecture) is a standard XML data model for authoring and publishing. It is the most widely-used way that corporations with large document sets are organizing their data by topic. The list of companies who implement DITA includes:
If your company’s goals are to do business with or to integrate with larger international organizations, then organizing your data in this topic-based format is a smart plan.
For more information about DITA please visit dita.xml.org.