Membership Documents
  • Bylaws
  • Charter
  • Join the DDI Alliance
  • Membership Form (PDF)
 Alliance Structure
  • Member Institutions
  • Expert Committee
  • Steering Committee
  • Committee Meeting Minutes
 Publications
  • General Brochure
  • Newsletter
  • Reports
    • Annual Report 2006 (PDF)
    • Annual Report 2005 (PDF)
    • Annual Report 2004 (PDF)
    • Strategic Plan, 2007 and Beyond (PDF)

 Papers, Presentations, and Reports
 Projects Using the DDI
 DDI Users' Listserv
 Getting Started with the DDI
 Frequently Asked Questions (FAQ)
 DDI Logo

 Document Type Definition (DTD)
 XML Schema (XSD)
 DDI Lite (Recommended Elements)
 Version Control for DTD
 Information on DTD Elements (DDI Tag Library)

 Mapping to Other Metadata Standards
  • Dublin Core
  • Recommended Fields (CESSDA) (PDF)
 Related Tools
  • Software/Tools
  • XML/XSLT

Schema Documentation for DDI Version 3.0 (4-28-2008)

The following links lead to a module-by-module explanation of the schemas for DDI version 3.0.

• Archive module
• Comparative module
• Conceptual components module
• Data collection module
• Dataset module
• Dublin Core Elements module
• DDI profile module
• Grouping module
• Instance module
• Logical product module
• Physical data product module
• Physical data product - inline n-cube module
• Physical data product - normal n-cube module
• Physical data product - tabular n-cube module
• Physical data product - proprietary module (beta)
• Physical instance module
• Reusable module
• Study unit module

Note: There are also some non-DDI modules in this package, to facilitate the use of XHTML and XML Schema. These are documented separately by their maintainers.