The French National Institute of Statistics and Economic Studies (Insee) has developed a metadata-driven survey data collection process including a questionnaire generator code-named Eno ). This tool operates on a formal description of a questionnaire in DDI and executes a completely automated chain of transformations to produce the actual collection instrument(s) (web and paper forms, interviewer questionnaire) and their documentation.
Example showing the grouping approach for comparable variables, description of derived variables as well as the relationship of waves and the household / person relationship
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