Jean-Charles Billaut is a computer science professor at the Polytechnic School of the University of Tours-France. He is a boardmember of the French OR Society and will serve as president from 2006-2007. Aziz Moukrim is a computer science professor at the University of Technology of Compiegne-France, and is a member of the UTC-CNRS research laboratory (Heudiasyc). He is coleader of the CNRS Group (Scheduling and Transportation Networks). Eric Sanlaville is an associate professor of computer science at the University of Clermont-Ferrand-France. He is a boardmember of the French OR Society.