Henri Habrias is a Professor in the Department of Computer Science at the IUT Nantes, University of Nantes, France, and teaches software specification at graduate and undergraduate levels. He is a member of the LINA Laboratory (Laboratoire d’Informatique de Nantes Atlantique) and he has published six books in software engineering.

Marc Frappier is a Professor of Software Engineering in the Department of Computer Science at the University of Sherbrooke, Canada. His research interests focus on specification, synthesis and construction of software, project management and functional size measurement. Before joining the University of Sherbrooke, he held several positions, both at management and technical levels, in banking, manufacturing, telecommunications, aerospace and pharmaceutical roles.