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Functionality Aware dynamic composition of Web Services

Computer Systems Science & Engineering 2021年第1期36卷 201-211页

作者： Mohemmed Sha Abdalla Alameen Department of Computer Science College of Arts and SciencePrince Sattam bin Abdulaziz UniversityWadi Al dawaser11991Saudi Arabia

The composition of the web service is a common technique to attain the best results of complex web *** selection of appropriate web services,linking those services in the action flow and attaining the actual functionality of the task are the important factors to be *** though different frameworks and methods have been proposed to dynamically compose web services,each method has its advantage and disadvantage over the *** of the methods give much importance to the Quality of Service(QoS)but fail to achieve the actual functionality after *** paper proposes a functionalityoriented composition technique for composing web ***,this method helps reach the extreme functionality of each web service in the composition towards customer *** from considering the overall QoS of every single service,the non-functional parameters associated with these services are also considered for achieving the expected *** of these nonfunctional parameters has a vital role in the functional performance of the web *** web services that satisfy the non-functional requirements are chosen to form the composition to attain the best *** list of services in the proposed composition method is different from the conventional one,which is composed based on the overall *** non-functional parametric values,the QoS of each web service and the overall QoS after composition are evaluated for the proposed method and experimentally analyzed to prove their advantage over the others.

关键词： Web service service composition quality of service dynamic composition

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dynamic web service composition based on OWL-S

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Science in China(Series F) 2006年第6期49卷 843-863页

作者： Jing DONG Yongtao SUN Sheng YANG Kang ZHANG Department of Computer Science University of Texas at Dallas Richardson TX 75083 USA American Airlines 4333 Amon Carter Blvd Fort Worth TX 76155 USA

Composing existing web services for enterprise applications may enable higher level of reuse. However the composition processes are mostly static and lack of support for runtime redesign. In this paper, we describe our approach to the extension of the OWL-S ontology framework for dynamic web service composition. We raise the level of abstraction and propose an abstract service layer so that web services can be composed at the abstract service level instead of the concrete level. Each abstract service is attached with an instance pool including all instances of the abstract service to facilitate fail-over and dynamic compositions.

关键词： web service instance pool abstract service ontology dynamic composition

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