A Trusted Cooperative Evaluation Model and Its Algorithm for Web Services Composition
With the widespread development of web services application, more and more researchers have focused on the quality of web services composition in multi-domains. However, the research on the evaluation method for web services composition is still little nowadays. Therefore, a QoS-driven trusted cooperative evaluation model (TCEM) is proposed in this paper, which is composed of several components named domain service discovery, global index, composition method selecting, case-based reasoning (CBR) system and result evaluating separately. The TCEM can judge the business stream effectively and comprehensively by choosing an appropriate and trusted evaluation method for the generated services composition chains. Furthermore, on the basis of CBR and the retrieval mechanism oriented to web services coordination, the TCEM-based execution engine and algorithm is implemented to evaluate the quality of web service composition. The proposed algorithm has the satisfied result compared with the traditional method, and it shows more efficient and trustworthy where web services composition is widely used in multi domains.
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Document Type: Research Article
Publication date: March 1, 2012
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