Middleware-based Model for Dynamic Reconfiguration of Web Service

International Journal of Grid and Distributed Computing Pub Date : 2018-03-31 DOI:10.14257/IJGDC.2018.11.3.08

R. Ilahi, N. Admodisastro, Norhayati Mohd. Ali, A. B. Sultan

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Abstract

Dynamic reconfiguration of web services(WSs)is a method to replace WSs in service-oriented architecture (SOA) software system during runtime.The method allows the service requester to replace WSs in their system without interruption of other operations in the system. However, dynamic reconfiguration is a difficult process and attempts to handle the process appropriately are still lacking.In this paper, we propose a middleware-based model to improve SOA dynamic reconfiguration service process during runtime.The model isused as the main standard to out line the dynamic reconfiguration of WSs that can handle quality of service (QoS)requirements and to provide explicit mechanism during pre-, in-, and post-adaptation stages. A self-adaptive tool was developed based on the model to support the dynamic reconfiguration of WSs with minimum human intervention. Finally, an evaluation using an experiment is conducted to evaluate the effectiveness of the model.The evaluation results show that the model supported the dynamic reconfiguration of WSs effectively.

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基于中间件的Web服务动态重构模型

动态重新配置web服务是在运行时替换面向服务体系结构(SOA)软件系统中的web服务的一种方法。该方法允许服务请求者替换其系统中的web服务，而不会中断系统中的其他操作。然而，动态重新配置是一个困难的过程，并且仍然缺乏适当处理该过程的尝试。在本文中，我们提出了一个基于中间件的模型来改进SOA运行时的动态重构服务流程。该模型被用作主要标准，用于描述能够处理服务质量(QoS)需求的web服务的动态重构，并在适应前、适应中和适应后阶段提供明确的机制。在此基础上，开发了一种自适应工具，在最小的人为干预下支持web服务的动态重构。最后，通过实验对模型的有效性进行了评价。评价结果表明，该模型能够有效地支持WSs的动态重构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Grid and Distributed Computing COMPUTER SCIENCE, SOFTWARE ENGINEERING-

自引率

0.00%

发文量

期刊介绍： IJGDC aims to facilitate and support research related to control and automation technology and its applications. Our Journal provides a chance for academic and industry professionals to discuss recent progress in the area of control and automation. To bridge the gap of users who do not have access to major databases where one should pay for every downloaded article; this online publication platform is open to all readers as part of our commitment to global scientific society. Journal Topics: -Architectures and Fabrics -Autonomic and Adaptive Systems -Cluster and Grid Integration -Creation and Management of Virtual Enterprises and Organizations -Dependable and Survivable Distributed Systems -Distributed and Large-Scale Data Access and Management -Distributed Multimedia Systems -Distributed Trust Management -eScience and eBusiness Applications -Fuzzy Algorithm -Grid Economy and Business Models -Histogram Methodology -Image or Speech Filtering -Image or Speech Recognition -Information Services -Large-Scale Group Communication -Metadata, Ontologies, and Provenance -Middleware and Toolkits -Monitoring, Management and Organization Tools -Networking and Security -Novel Distributed Applications -Performance Measurement and Modeling -Pervasive Computing -Problem Solving Environments -Programming Models, Tools and Environments -QoS and resource management -Real-time and Embedded Systems -Security and Trust in Grid and Distributed Systems -Sensor Networks -Utility Computing on Global Grids -Web Services and Service-Oriented Architecture -Wireless and Mobile Ad Hoc Networks -Workflow and Multi-agent Systems