The Data Documentation Initiative (also known as DDI) is an international standard for describing surveys, questionnaires, statistical data files, and social sciences study-level information. This information is described as metadata by the standard.
| Data Documentation Initiative Metadata Standard | |
 DDI | |
| Abbreviation | DDI |
|---|---|
| Status | Production Use |
| Year started | 1995 |
| First published | 1996 |
| Latest version | DDI 3.3 April 15, 2020 |
| Organization | DDI Alliance |
| Committee | Scientific Board and Technical Committee |
| Related standards | XML |
| Domain | Questionnaires Metadata Standard Statistical survey |
| License | Creative Commons Attribution 4.0 International |
| Website | ddialliance |
Begun in 1995,[1] the effort brings together data professionals from around the world to develop the standard. The DDI specification, most often expressed in XML, provides a format for content, exchange, and preservation of questionnaire and data file information. DDI supports the description, storage, and distribution of social science data, creating an international specification that is machine-actionable and web-friendly.[2]
Version 2 (also called "Codebook") 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. The latest version 3.3 (also called "Lifecycle") of the DDI standard was released in 2020.[3]
Member Institutions
editSee also
editReferences
editExternal links
edit- DDI Project
Related software/tools
edit- Colectica
- CSM's XCONVERT
- IHSN Microdata Management Toolkit
- Nesstar Publisher (development was discontinued and Nesstar reached end-of-life status in 2022)
- SDA to XML
- SPSSOMS2DDI
- The Dataverse Project
- Scholars Portal's Dataverse Data Explorer v.2
- Rich Data Services.
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