About the Author
is Associate Professor of Computer Engineering in the Department of Industrial Electronics at the University of Minho in Guimaräes, Portugal. Paula Swatman
is Professor of eBusiness and Director of the Institute for Management at the University of Koblenz-Landau in Germany, as well as Professor of Information Systems within the School of I.S. at Deakin University in Australia. Luis Valadares Tavares
is Professor of Operational Research and Systems Engineering at IST - Technical University of Lisbon, Portugal, as well as President of IST's Center for Urban and Regional Systems and of the Portuguese eBusiness Society.