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Journal Articles Software and Systems Modeling Year : 2020

Automated synthesis of local time requirement for service composition


Service composition aims at achieving a business goal by composing existing service-based applications or components. The response time of a service is crucial especially in time critical business environments, which is often stated as a clause in service level agreements between service providers and service users. To meet the guaranteed response time requirement of a composite service, it is important to select a feasible set of component services such that their response time will collectively satisfy the response time requirement of the composite service. In this work, we use the BPEL modeling language, that aims at specifying Web services. We extend it with timing parameters, and equip it with a formal semantics. Then, we propose a fully automated approach to synthesize the response time requirement of component services modeled using BPEL, in the form of a constraint on the local response times. The synthesized requirement will guarantee the satisfaction of the global response time requirement, statically or dynamically. We implemented our work into a tool, Selamat, and performed several experiments to evaluate the validity of our approach.

Dates and versions

hal-02512449 , version 1 (19-03-2020)





Étienne André, Tian Huat Tan, Manman Chen, Shuang Liu, Jun Sun, et al.. Automated synthesis of local time requirement for service composition. Software and Systems Modeling, 2020, 19, pp.983-1013. ⟨10.1007/s10270-020-00787-5⟩. ⟨hal-02512449⟩
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