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Official Release of the Data Documentation Initiative 3.0

May 21, 2008 -- The Alliance for the Data Documentation Initiative (DDI) is pleased to announce the official release of Version 3.0 of the DDI XML specification for documenting social science data. This long awaited version of the DDI represents a major advance by fully incorporating XML Schemas and moving to a data life cycle approach. We thank all the members of the DDI working groups as well as DDI users who have volunteered their time and efforts over the past years to make this specification a reality. The Data Documentation Initiative (DDI) is a project to create an international standard in XML for metadata describing social science data. The DDI Alliance is a self-sustaining membership organization whose members guide the development of the DDI specification. For further information, visit or contact Mary Vardigan Director, DDI Alliance Assistant Director, Inter-university Consortium for Political and Social Research (ICPSR)

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