Institutional quality data are primary quantitative data, which are annually collected by the QAU and refer to a specific academic period. These data are grouped and processed appropriately so that qualitative indicators can be extracted, which facilitate the data analysis and presentation processes.

The Hellenic Authority for Higher Education (HAHE) maintains the Integrated National Quality Information System (NISQA), part of which is the Quality Data Management System. Purpose of this system is to simplify and facilitate the process of data collection as well as their appropriate grouping, to support the accreditation procedures of the Programmes of Studies and the Internal Quality Assurance Systems of all Quality Assurance Units and any other quality assurance process.