An Object-Oriented Framework for Managing the Quality of Service of Distributed Applications

In this paper we present a framework aiming at easing the design and implementation of distributed object-oriented applications, especially interactive ones, where quality of service has to be monitored and controlled. Our framework relies on a new computation model based on a contract concept. Contracts are used to specify execution requirements and to monitor the remote execution of methods; they enable a good separation of concern between the application domain issues and the distribution domain ones, while promoting structured interactions between objects in these two domains, especially regarding quality of service.