0 Sérgio Guerreiro, INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Portugal David Aveiro, University of Madeira and Madeira Interactive Technologies Institute, Portugal Henderik A. Proper, Luxembourg Institute of Science and Technology, Luxembourg Marné de Vries, University of Pretoria, South Africa Hans Mulder, Antwerp Management School , Boogkeers 5, BE-2000, Antwerp, Belgium Martin Op 't Land, Capgemini , University of Antwerp, Antwerp Management School , Belgium