Vassilis Christophides is a professor of Computer Science at the University of Crete. He has been recently appointed to an advanced research position at INRIA Paris Rocquencourt. Previously, he worked as a Distinguished Scientist at Technicolor, R&I Center in Paris. He studied Electrical Engineering at the National Technical University of Athens (NTUA), Greece, July 1988, he received his DEA in computer science from the University PARIS VI, June 1992, and his Ph.D. from the Conservatoire National des Arts et Metiers (CNAM) of Paris, October 1996. His main research interests include Databases a...