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DDI-Codebook (DDI-C)

Structured, descriptive documentation of the content, meaning, provenance, and access for a single data set. Originally developed as an XML DTD, DDI-Codebook retains the hierarchical structure of a DTD in describing the contents of a descriptive codebook for a data set including: identification, authorship, ownership, purpose, background methodologies, source information, provenance, quality control, access, physical file structures, variables/variable groupings, and related materials. Extensive information is found within the variable description covering the data source, derivation activity, representation, data typing, variable role, and restrictions.
 

 Supports Activities

  • Descriptive documentation of the content, meaning, provenance, and access for a single data set
  • Archival preservation of descriptive content
  • Input basis for more complex descriptions
  • Input content for discovery and exchange of data at the study, data file, variable, and question level
  • Input content for a structured human-readable codebook for the data set as a whole
  • Populate variable and question banks to explore available data and question structures for reuse in new surveys
 

Download current version

 

Learn more about specific versions:

V.2.5 (2014) [current]

V.2.1 (2005)
V.2.0 (2003)
V.1.x (2001)
 
Best Practices
  • Bullet list of titles and link to document
  • Add short description if useful
  • Include links to Use Cases here
Examples
  • Metadata Examples
    • A listing of available examples of DDI Codebook instances (filter by version is available)
  • DDI Profiles
    • Profiles used by organizations or applications

 

Resources
License

DDI Codebook 2.5 XML Schema is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
DDI Codebook 2.5 XML Schema is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Development Work
  • Link to development history
  • Development Team (short statement and link to Atlassian site and documents folder)
  • GitHub location
  • Contribute by filing any issues or suggestions you have for this product (form)