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QoS-based Late-Binding of Service Invocations in Adaptive Business Processes

Abstract : Computing has reached the time of distributed applications everywhere. Service-oriented architectures are more and more used to organize such complex and highly dynamic applications into business processes calling services discovered in registries at load-time. In this context, Quality of Service (QoS) and agility in business processes become key issues. Instead of binding business processes to services at load-time, this paper proposes to monitor sets of candidate services for their current QoS and to choose among them at call-time. This new form of late-binding paves the way to more agile and robust applications called adaptive business processes. Besides the conceptual background and implementation of this late-binding in an industrial-strength web service platform, this paper presents the LCP-net formalism introduced to provide programmers with a mean to express qualitatively their preferences among the different QoS properties of services, hence tackling the multi-criteria decision making arising from the run-time choice among candidate services given several unrelated QoS properties.
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Pierre Châtel, Jacques Malenfant, Isis Truck. QoS-based Late-Binding of Service Invocations in Adaptive Business Processes. ICWS 2010 - 15th IEEE International Conference on Web Services, Jul 2010, Miami, FL, United States. pp.227-234, ⟨10.1109/ICWS.2010.74⟩. ⟨hal-01243537⟩



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