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Application creation through service composition is a cornerstone for several architectures including Service-Oriented Architecture. As the number and diversity of applications created based on this paradigm increase, the need for guaranteeing quality of service becomes more important. In this paper, we present a distributed algorithm for guaranteeing a specified level of application completion probability. The algorithm is designed to control service commitments in both queue-less and queue-enabled service-oriented systems. The algorithm does not assume a specific distribution type for service execution times and application request inter-arrival times, and hence is suitable for systems with stationary or non-stationary request arrivals. We show that the proposed distributed algorithm achieves its performance objectives for both queue-less and queue-enabled service oriented systems.
Network and Service Management, IEEE Transactions on (Volume:7 , Issue: 4 )
Date of Publication: December 2010