A Model of Service Behavior Based on Petri Nets with Weights

Service composition technology promises a new solution to an age-old problem: how to implement complex, large scale, cross-enterprise business application. However, we must ensure the compatibility between component services in composite service. Current research works in this field only concern semantics compatibility of service interface, yet ignoring the compatibility of service behavior. Therefore, this paper proposes a model of service behavior based on Petri-nets with weight. Based on the novel model, a method is proposed to verify and compute service behavior compatibility.