文章基本信息

标题：Providing a Semi-Central Model for Web Service Composition
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作者：Saman Rouhi ; Mehregan Mahdavi
期刊名称：International Journal of Information Technology Convergence and Services (IJITCS)
印刷版ISSN：2231-1939
电子版ISSN：2231-153X
出版年度：2012
卷号：2
期号：2
出版社：AIRCC
摘要：In recent years, plenty of research has been done related to the methods of composition of web services. Notwithstanding much effort, it seems that this technology has a long way till it attains perfection. In this research, providing a suggestive model, we performed service orchestration semi-centrally. To do this, we need to group web services. We created groups or clusters of web services and put services in appropriate groups, by this way, the number of control flow and data flow notifications decreases considerably. For each group a controller and a Tuple space is considered and the controller is responsible for invoking services of that group Simulation results show that service orchestration can be influential in decreasing the amount of traffic, especially in composite services with a high level of communication in their component services. In addition, a decrease in the level of distribution in service orchestration can improve capability of execution monitoring and failure compensation.
关键词：Service Oriented architecture; Web Services Composition; Web Services Orchestration Models; Service;Grouping