DDI-Codebook (DDI-C)
Current Field Level Documentation
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
- Supports the use of external controlled vocabularies for improved searching and comparability between datasets
- Improved description of processing and analysis activities through incorporation of support for SDTL
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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.
- Metadata Examples
- A listing of available examples of DDI Codebook instances (filter by version is available)
- DDI Profiles
- Profiles used by organizations or applications
- Tools used to create, display, and access DDI instances (filtered by product)
- Training Materials
- DDI Glossary
- Development of DDI-Codebook is managed by the DDI Alliance Technical Committee (TC). The work of the TC can be found at Technical Committee - DDI - Confluence (atlassian.net) (external site). Issues related to the general development of DDI Codebook are managed at DDI: Codebook - Issues - JIRA (atlassian.net) (external site). File specific model issues in Development Repository (GitHub site).
DDI Codebook 2.6 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 2.6 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.