Interactors: Capturing Qos and Resource Requirements between Multiple Cooperating Objects

Complex distributed applications, including virtual environments, and real-time multimedia require quality of service (QoS) guarantees in the end-to-end transfer of information across a network. For many applications, these QoS requirements are formulated on application-level objects and are dynamic, since they may change during the execution of the application. To support dynamic QoS guarantees requires the management of processing , memory, and network resources. Consequently, we introducèinteractors', which capture the dynamic QoS and resource requirements at each stage in the generation , processing, and transfer of information between multiple cooperating objects.