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    • Annual Report 2006 (PDF)
    • Annual Report 2005 (PDF)
    • Annual Report 2004 (PDF)
    • Strategic Plan, 2007 and Beyond (PDF)
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 Getting Started with the DDI
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 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

Working Groups

Controlled Vocabularies Working Group

Charge: To develop controlled vocabularies on already identified DDI elements. Stage 2: To determine which other DDI elements require controlled vocabularies and develop those.

Timetable: Start November 2007, Stage 1 completed by June 2008. Stage 2 completed by December 2009.

Membership opportunity: New members are welcomed. Please contact Taina Jääskeläinen.

Preservation Metadata Working Group

Charge: (1) To identify elements necessary for long-term preservation for integration into the DDI specification; (2) to develop a plan for digital preservation of DDI documentation that takes into account the referencing mechanisms.

This group is in the process of forming. Please contact Nancy McGovern for more information.

Qualitative Data Exchange Working Group

Charge: To develop a robust XML based schema for qualitative data exchange and encourage tools development based upon these needs.

Timetable: Start Jan 2008, first draft schema to be produced Jan 2009. Agreed schema Dec 2009.

Membership opportunity: New members are welcomed. Please contact Louise Corti.

Survey Design and Implementation Working Group

Charge: To develop requirements for new elements and attributes describing the process of survey design and implementation through the point of specifications for computer-assisted interviews.

Timetable: First draft December 2008.

Membership opportunity: New members are welcomed. Please contact Peter Granda.

Technical Implementation Committee (TIC)

Charge: To create, maintain, and enhance the DDI specification according to requirements of the DDI substantive content working groups and in alignment with other metadata standards and community-based needs.

Timetable: Ongoing work, with weekly phone conferences.

Membership opportunity: New members are welcomed. Please contact Wendy Thomas.

Usability and Outreach Working Group

Charge: The Usability and Outreach Group works to facilitate the use and usability of the DDI standard. The group therefore reaches out to the community of current and potential DDI users in order to promote DDI adoption, to obtain feedback on the standard, and to ensure its responsiveness to user needs.

Timetable: Under development

Membership opportunity: New members are welcomed. Please contact Kate McNeill or Stefan Kramer.

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