42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
---
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title: "Data Documentation Initiative"
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chunk: 1/1
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source: "https://en.wikipedia.org/wiki/Data_Documentation_Initiative"
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category: "reference"
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tags: "science, encyclopedia"
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date_saved: "2026-05-05T12:14:22.787580+00:00"
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instance: "kb-cron"
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---
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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.
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Begun in 1995, 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.
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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.
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== Member Institutions ==
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== See also ==
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Colectica
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Metadata standards
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== References ==
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== External links ==
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DDI Project
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Official website
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DDI Tools
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=== Related software/tools ===
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Colectica
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CSM's XCONVERT
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IHSN Microdata Management Toolkit
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Nesstar Publisher (development was discontinued and Nesstar reached end-of-life status in 2022)
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SDA to XML
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SPSSOMS2DDI
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The Dataverse Project
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Scholars Portal's Dataverse Data Explorer v.2
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Rich Data Services. |