The Data Documentation Initiative (DDI) est un projet international destiné à créer un standard de documentation technique pour décrire les données de sciences sociales.
The Data Documentation Initiative is an international effort to establish a standard for technical documentation describing social science data. A membership-based Alliance is developing the DDI specification, which is written in XML.
queXML is a simple XML schema for designing questionnaires and is compatible with the DDI standard for data description.
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