1. Laboratory for Studies of Research and Technology Transfer; Institute for System Analysis and Computer Science-National Research Council of Italy (IASI-CNR); Viale Manzoni 30 00185 Rome Italy
2. Department of Engineering and Management; University of Rome “Tor Vergata,”; Via del Politecnico 1 00133 Rome Italy
3. Department of Computer, Control and Management Engineering; University of Rome “Sapienza,”; Via Ariosto 25 00185 Rome Italy