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Downloads: REFI-QDA Codebook

The documents below enable users to understand and other software developers to implement the REFI-QDA Codebook. Here you will find:

  • the UML class diagram

  • the XSD schema


Please note that the specification for the REFI-QDA Codebook is contained within the REFI-QDA Project specification.


If you decide to implement the REFI-QDA Codebook export and import option in your software, please refer to it in your menu texts as: REFI-QDA Codebook.

The UML class diagram of the REFI-QDA Codebook


XSD file of the REFI-QDA Codebook

The XML schema of an imported or exported Codebook, is a description of a type of XML document (here a .qdc file) expressed in terms of constraints on the structure and content of .qdc files.


This means that beyond the basic syntactical constraints imposed by XML itself (a well formed xml file), each .qdc file exported from a software should be valid according to this .xsd file.


Below is a graphical representation of the REFI-QDA Codebook XSD.

REFI Codebook

The XSD file of the REFI-QDA Codebook can be downloaded here.


If you are planning on implementing the REFI-QDA Codebook in your own software, we expect you to implement both import and export.


If you want to be listed on this website, you need to provide an example export file first. Please contact us at

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