An Austrian proposal for the Classification of Open Access Tuples (COAT) - Distinguish different Open Access types beyond colors

In the working paper I describe in detail the approach for Open Access definitions which was presented in the Workshop "Open Access Monitoring - Approaches and Perspectives" in Vienna. It defines five criteria on which are the definitions build. Each criteria can be out of 4 classes. The minimum classes for the criteria which are used in a Open Access definition can be presented as the Classification of Open Access Tuples e.g. Open Access (Berlin Declaration) (1,1,1,1,3) this methods allows much easier to distinguish between different Open Access definitions. This is needed if the Open Access Universe should be measured in studies or monitoring approaches and the results should become more comparable.