RSS for Propagation in Constraints: How One Thing Leads to Another

At a conference such as CPAIOR, we have experts from many different approaches to searching huge combinatorial spaces. Much of what we all do is common, for example similar search methods, heuristics, and learning techniques. So what is it that is essentially different about Constraint Programming in particular? One answer is the power and diversity of constraint propagation algorithms. By contrast, other search disciplines often rely on just one propagation technique, such as unit propagation in SAT.