Swan , Jerry and Woodward , John and Özcan , Ender and

We extend a previous mathematical formulation of hyperheuristics to reflect the emerging generalization of the concept. We show that this leads naturally to a recursive definition of hyper-heuristic and to a division of responsibility that is suggestive of a blackboard architecture, in which individual heuristics annotate a workspace with information that may also be of interest to other heuristics. Such a framework invites consideration of the kind of relaxations of the domain barrier that can be achieved without loss of generality.