Joint Achievement of Services' Personal Goals

Web service specifications can be quite complex, including various operations and message exchange patterns. In this work, we give a rule-based declarative representation of services, and in particular of WSDL operations, that enables the application of techniques for reasoning about actions and change, that are typical of agent systems. This makes it possible to reason on a rule-based specification of choreography roles and about the selection of possible role players on a goal-driven basis, and allows us to attack the problem of the joint achievement of individual goals for a set of services which animate a choreography.