Dissemination and archiving of data, metadata and data files

Questasy was originally developed to disseminate and archive data and metadata from the LISS panel ( The database structure is based on the DDI 3 (Data Documentation Initiative) standard, is built on a PHP framework and uses a MySQL database. The system is easy to adapt and the Questasy access code is available for scientific and non-profit organizations.


  • Dissemination of data, metadata and data files
  • Indexed search engine
  • Supports longitudinal studies
  • Imports and exports SPSS
  • Produces data sets by using a ‘variable shopping cart’
  • Produces PDF code books
  • Supports multilingual use 

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