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

Alliance Structure

Alliance Member Institutions
Expert Committee
Steering Committee
Working Groups
Committee Meeting Minutes

Member Institutions

University of Alberta, Canada
University of California, Berkeley -- Computer-Assisted Survey Methods Program and UCDATA
University of California, California Digital Library
Centre for Survey Research and Methodology (ZUMA)
Centro De Investigaciones Sociologicas (CIS), Spain
CEPS/INSTEAD -- Luxembourg
Danish Data Archive
Data Archiving and Networked Services (DANS), The Netherlands
Emory University
Finnish Social Science Data Archive
German Socio-Economic Panel Study (SOEP)
GESIS-ZA (Zentralarchiv fuer Empirische Sozialforschung, University of Koeln [ZA])
GESIS-ZUMA (Zentrum fuer Umfragen, Methoden und Analysen [ZUMA])
University of Guelph
Harvard University
Institute for the Study of Labor (IZA)
Inter-university Consortium for Political and Social Research (ICPSR)
Massachusetts Institute of Technology (MIT)
University of Minnesota
National Opinion Research Center (NORC)
Norwegian Social Science Data Service (NSD)
Open Data Foundation
Princeton University
Roper Center
Stanford University
University of Surrey
Swedish Social Science Data Service (SSD)
Swiss Data Archive for the Social Sciences (SIDOS)
United Kingdom Data Archive
University of Wisconsin
World Bank, Development Data Group (DECDG)
Yale University

The DDI Expert Committee is comprised of XML experts, social science researchers, and data archivists who serve as Alliance representatives from their respective institutions and organizations. The Expert Committee also has a number of working groups devoted to improving the specification's handling of special types of data.

Iris Alfredsson, Swedish Social Science Data Service (SSD)
Micah Altman, Harvard University
Atle Alvheim, Norwegian Social Science Data Service (NSD)
Nikos Askitas, Institute for the Study of Labor (IZA)
Olivier Dupriez, World Bank, Development Data Group (DECDG)
Michelle Edwards, University of Guelph
Julie Gibbs, University of Surrey
Jan Goebel, German Socio-Economic Panel Study (SOEP)
Arofan Gregory, AEON Consulting
Pierre Hausman, CEPS/INSTEAD -- Luxembourg
Pascal Heus, Open Data Foundation
Stefan Kramer, Yale University
Fredy Kuhn, Swiss Data Archive for the Social Sciences (SIDOS)
Chuck Humphrey, University of Alberta
Sanda Ionescu, Inter-university Consortium for Political and Social Research (ICPSR)
Mari Kleemola, Finnish Social Science Data Archive
Hans Jørgen Marker, Danish Data Archive (Chair)
Eric Marlier, CEPS/INSTEAD -- Luxembourg
Reiner Mauer, GESIS-ZA
Mark G. Maynard, Roper Center, University of Connecticut
Katherine McNeill-Harman, Massachusetts Institute of Technology
Ken Miller, UK Data Archive
Peter Ph. Mohler, GESIS-ZUMA (Zentrum fuer Umfragen, Methoden und Analysen [ZUMA])
Meinhard Moschner, GESIS-ZA (Zentralarchiv fuer Empirische Sozialforschung, University of Koeln [ZA])
Ron Nakao, Stanford University (Vice Chair)
Rob O'Reilly, Emory University
Tom Piazza, University of California, Berkeley -- Computer-Assisted Survey Methods Program
Clay Redding, Princeton University
Pilar Rey del Castillo, Centro De Investigaciones Sociologicas (CIS), Spain
Pascal Heus, Open Data Foundation
Winona Salesky, Princeton University Library
Janet M. Eisenhauer Smith, University of Wisconsin
John Sokolowski, National Opinion Research Center (NORC)
Jon Stiles, University of California, Berkeley -- UCDATA
Wendy Thomas, University of Minnesota
Mary Vardigan, Inter-university Consortium for Political and Social Research (ICPSR)
Joachim Wackerow, Centre for Survey Research and Methodology (ZUMA)
Marion Wittenberg, DANS, The Netherlands
Wolfgang Zenk-Möltgen, GESIS-ZA

Steering Committee

Members of the Steering Committee include the following individuals from Alliance host institutions and associations:

Myron Gutmann, representing the Inter-university Consortium for Political and Social Research (ICPSR)
Kevin Schurer, United Kingdom Data Archive, representing the Council of European Social Science Data Services (CESSDA)
Hans Jorgen Marker, Danish Data Archive -- DDI Alliance Expert Committee Chair
Ekkehard Mochmann, Zentralarchiv fur Empirische Sozialforschung (ZA), representing the International Federation of Data Organizations (IFDO)
Ron Nakao, Stanford University -- DDI Alliance Expert Committee Vice Chair
Mary Vardigan, ICPSR, DDI Alliance Director
Melanie Wright, United Kingdom Data Archive (UKDA), representing the International Association of Social Science Information Service and Technology (IASSIST)

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