Constraint reasoning has matured over the last three decades with contributions from a diverse community of researchers in artificial intelligence, databases an
Constraints are everywhere: most computational problems can be described in terms of restrictions imposed on the set of possible solutions, and constraint progr
Constraint satisfaction is a simple but powerful tool. Constraints identify the impossible and reduce the realm of possibilities to effectively focus on the pos
The use of constraints had its scientific and commercial breakthrough in the 1990s. Programming with constraints makes it possible to model and specify problems
This volume contains 15 thoroughly refereed full research papers selected from the presentations given during two workshops on constraint processing; these work