The most important components of the IST.net application are: updating of the IST metadata, generated input data ('data entry' 'interpreter'), generator for 'web' applications, data editing and data correction, automatic correction, advanced search of individual and aggregated data from the database, generating reports and the ability to manage procedures in database containing individual and aggregate data.
Components of the IST.net application don’t depend on each other very much, i.e. they are "loosely" coupled. This principle allows easy upgrading of the IST.net program and easy adapting to any new needs.