標題: A relaxable service selection algorithm for QoS-based web service composition
作者: Lin, Chia-Feng
Sheu, Ruey-Kai
Chang, Yue-Shan
Yuan, Shyan-Ming
資訊工程學系
Department of Computer Science
關鍵字: Web service;Quality of service;Service composition;Service selection
公開日期: 1-十二月-2011
摘要: Context: Web services are emerging technologies that enable application to application communication and reuse of autonomous services over Web. Composition of web services is a concept of integrating individual web services to conduct complex business transactions based on functionality and performance constraints Objective: To satisfy user requirements, technologies of Quality of service (QoS)-based web service composition (QWSC) are widely used to build complex applications by discovering the best-fit web services in term of QoS. Method: In this paper, a QoS-based service selection (RQSS) algorithm is proposed to help composite web application development by discovering feasible web services based on functionalities and QoS criteria of user requirements. The RQSS recommends prospective service candidates to users by relaxing QoS constraints if no suitable or available web service could exactly fulfill user requirements. Results: A generic framework is implemented to demonstrate the feasibility and performance of RQSS by adapting WS-BPEL standards, and can be reused for QoS-based web composition applications. Conclusion: The experimental results show that the RQSS algorithm indeed performs well and increases the system availability and reliability. (C) 2011 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.infsof.2011.06.010
http://hdl.handle.net/11536/14623
ISSN: 0950-5849
DOI: 10.1016/j.infsof.2011.06.010
期刊: INFORMATION AND SOFTWARE TECHNOLOGY
Volume: 53
Issue: 12
起始頁: 1370
結束頁: 1381
顯示於類別:期刊論文


文件中的檔案:

  1. 000296986900006.pdf