Data Documentation Initiative

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The Data Documentation Initiative (DDI) is an international project to create a standard for information describing statistical and social science data (i.e., metadata). Begun in 1995, the effort brings together data professionals from around the world to develop the standard. The DDI specification, written in XML, provides a format for content, exchange, and preservation of information. Version 3.2 of the DDI standard was released in 2014.[1] DDI fills a need related to the challenge of storing and distributing social science metadata, due to the ubiquity of proprietary file formats and no international standard for the design of codebooks. Version 2 of the DDI standard has been implemented in the Dataverse data repository and the data archives of the Inter-university Consortium for Political and Social Research.

Member Institutions[2][edit]

Institution Abbr. Country
University of Alberta Canada
University of California UCDATA US
Centro De Investigaciones Sociológicas CIS Spain
Cornell University CISER US
Danish Data Archive DDA Denmark
Data Archiving and Networked Services DANS Netherlands
Finnish Social Science Data Archive Finland
German Socio-Economic Panel Study SOEP Germany
GESIS – Leibniz Institute for the Social Sciences GESIS Germany
University of Guelph
Institute for Quantitative Social Science at Harvard University IQSS US
Institute for the Study of Labor IZA Germany
Inter-university Consortium for Political and Social Research ICPSR US
Massachusetts Institute of Technology MIT US
University of Minnesota, Minnesota Population Center MPC US
Norwegian Social Science Data Services NSD Norway
Open Data Foundation
Princeton University US
Research Data Centre of the German Federal Employment Agency, Institute for Employment Research IAB Germany
Roper Center for Public Opinion Research US
Stanford University US
Survey Research Operations, University of Michigan US
Swedish National Data Service SND Sweden
Swiss Foundation for Research in Social Sciences FORS Swiss
University of Toronto Scholars Portal Canada
University of Washington, Center for Studies in Demography & Ecology CSDE US
U.S. Bureau of Labor Statistics (Associate Member) US
Australian Bureau of Statistics ABS Australia
World Bank, Development Data Group DECDG US

See also[edit]


  1. ^ DDI Specification
  2. ^ DDI-Members

External links[edit]

Related software/tools[edit]