Improving QoS Delivered by WS-BPEL Scenario Adaptation through Service Execution Parallelization

Dionisis Margaris, Costas Vassilakis, and Panayiotis Georgiadis
In Proceedings of the ACM Symposium On Applied Computing (SAC), 2016

Abstract:
WS-BPEL scenario execution adaptation has been proposed by numerous researchers as a response to the need of users to tailor the WS-BPEL scenario execution to their individual preferences; these preferences are typically expressed through Quality of Service (QoS) policies, which the adaptation mechanism considers in order to select the services that will ultimately be invoked to realize the desired business process. In this paper, we study the potential to parallelize the execution of the WS-BPEL scenario in order to minimize its response time and/or achieving higher scores in the other qualitative dimensions, such as cost, reliability, etc., at the same time. We also describe, develop and validate a parallelization algorithm for realizing the proposed enhancements.

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