文章基本信息

标题：Towards Distributed BPEL Orchestrations
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作者：Luciano Baresi ; Andrea Maurino ; Stefano Modafferi 等
期刊名称：Electronic Communications of the EASST
电子版ISSN：1863-2122
出版年度：2007
卷号：3
语种：English
出版社：European Association of Software Science and Technology (EASST)
摘要：Web services are imposing as the technology to integrate highly heterogeneous systems. BPEL, the standard technology to compose services, assumes a single âorchestratorâ that controls the execution flow and coordinates the interactions with selected services. This centralized approach simplifies the coordination among components, but it is also a too heavy constraint. To this end, the paper introduces the idea of distributed orchestrations and presents a proposal to couple BPEL and distributed execution in mobile settings. The approach âexemplified on a simple case studyâ transforms a centralized BPEL process into a set of coordinated processes. An explicit meta-model and graph transformation supply the formal grounding to obtain a set of related processes, and to add the communication infrastructure among the newly created processes. The paper also presents a communication infrastructure based on tuple spaces to make the different orchestrators interact in mobile contexts. Keywords: WS-BPEL, Graph