Document, Discover and Interoperate
The Data Documentation Initiative (DDI) is an international standard for describing the data produced by surveys and other observational methods in the social, behavioral, economic, and health sciences. DDI is a free standard that can document and manage different stages in the research data lifecycle, such as conceptualization, collection, processing, distribution, discovery, and archiving. Documenting data with DDI facilitates understanding, interpretation, and use -- by people, software systems, and computer networks.
Why Use DDI?
- Generate interactive codebooks
- Implement data catalogs
- Build question banks
- Create concordance mappings
- Harmonize and compare data
- Manage longitudinal data sets
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Featured DDI Adopters
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The Consortium of European Social Science Data Archives (CESSDA) offers a data catalogue providing access to research data from archives across Europe. The catalogue includes nearly 30,000 studies (~22,000 with english descriptions) distributed by members of the CESSDA European Research...
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An international consortium of more than 750 academic institutions and research organizations, Inter-university Consortium for Political and Social Research (ICPSR) provides leadership and training in data access, curation, and methods of analysis for the social science research community. ICPSR...
The IHSN program of activities includes:
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