The documents available here enable users to understand the Project Exchange Standard, and software developers to implement it. You can find here

  • the UML class diagram
  • an introduction by Fred van Blommestein to the class model
  • the QDA-XML specification
  • the XSD schema

UML class diagram of the REFI Project Exchange Standard

An introduction to the class diagram can be downloaded here.

XSD schema of the REFI Project Exchange Standard
The XML schema of an imported or exported Project is a description of a type of XML document (here a .qdpx file) expressed in terms of constraints on the structure and content of .qdpx files. This means that beyond the basic syntactical constraints imposed by XML itself (a well formed xml file), each .qdpx file exported from a software should be valid according to this .xsd file. 

XSD file of the Project Exchange Standard is downloadable here

Specification of the REFI Project Exchange Standard

The complete specification can be downloaded as a pdf file here.

If you have implemented the Project Exchange Standard in your own software and want to be listed on this website, please contact Jeanine Evers