Araujo,J;NOVA University Lisbon, Quinta da Torre, Caparica;la Vara,JL;University of Castilla La Mancha, Avda Espana s/n, Albacete;Condori Fernandez,N;Universidade de Santiago de Compostela, Higher Technical Engineering School, Rua Lope Gomez de Marzoa, s/n, 15782, Santiago de Compostela;Bruel,JM;Universite de Toulouse, Maison la Recherche, allees Antonio Machado, Toulouse cedex,59;Santos,MY;Universidade do Minho, Escola de Engenharia, Departamento de Sistemas de Informacao, Campus de Azurem, Guimaraes;Assar,S;Institut Mines Telecom, Business School, Evry campus, Rue Charles Fourier, Evry Cedex,9;De Moor,K;NTNU, Postboks 8900, Trondheim, Torgarden;Gharib,M;University of Tartu, Institute of Computer Science, Narva mnt 18, Tartu linn, Tartumaa;Li,T;Beijing University of Technology, 100 Pingleyuan, Chaoyang District, Beijing;Barros,JP;Instituto Politecnico de Beja, Rua Pedro Soares, Beja;Brito,IS;Instituto Politecnico de Beja, Rua Pedro Soares, Beja;Machado,I;Universidade Federal da Bahia, Instituto de Computacao, Campus Ondina, Av Milton Santos s/n, PAF 2, Salvador;Karagiannis,D;Universitat Wien, Wahringer Strasse 29, Wien;Sales,TP;University of Twente, Drienerlolaan 5, Enschede;Salinesi,C;Universite Paris Pantheon Sorbonne, 12 Place du Pantheon, Paris Cedex,1