Professor of Data Modelling and Decision Support Systems, Department of Informatics, Ionian University, GR 49100, Corfu, Greece and Unit of Medical Technology and Intelligent Information Systems, U...view moreProfessor of Data Modelling and Decision Support Systems, Department of Informatics, Ionian University, GR 49100, Corfu, Greece and Unit of Medical Technology and Intelligent Information Systems, University of Ioannina, GR 45110 Ioannina, Greece, e-mail: exarchos@cc.uoi.gr, Phone: +302651008821view less