Constraints have emerged as the basis of a representational and Computational paradigm that draws from many disciplines and can be brought to bear on many problem domains. The conference is concerned with all aspects of computing with constraints including algorithms, applications, environments, languages, models, and systems. Contributions are welcome from any discipline concerned with constraints, including artificial intelligence, combinatorial algorithms, computational logic, concurrent computation, databases, discrete mathematics, operations research, programming languages, and symbolic computation. We also solicit papers from any domain employing constraints, including computational linguistics, configuration, decision support, design, diagnosis, graphics, hardware verification, molecular biology, planning, qualitative reasoning, real-time systems, resource allocation, robotics, scheduling, software engineering, temporal reasoning, vision, visualization, and user interfaces. Papers that bridge disciplines or combine theory and practice are especially welcome.