QoS Evaluation Model for Web Services Composition

Abstract:

With the gradual development and standardization of services-oriented computing (SOC), it becomes a rapidly growing software developing pattern to composition Web services into applications. Since Web services composition are long-lasting, loosely coupled and cross application and administrative boundaries, it is essential to choose proper services to compose the composite Web services to meet user’s requirements. This paper presents a QoS evaluation method for aggregation services when failure occurs and defines QoS evaluation model of the common aggregation patterns of transaction compensation. Experiment results show that when it is used to evaluate the QoS of composite Web services, QoS evaluation method of aggregation transaction compensation is much better than the Web services composition method based on random selection, and it is feasible and effective.

• Periodical: Key Engineering Materials (Volume 500)
• Pages: 311-316
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.500.311
• Online since: January 2012
• Authors: Yi Yan Fan, Xiao Yong Mei
• Keywords: Composition Web Services, Failure Compensation, Petri Net, Quality of Service (QoS)

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