Dissertation > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > The application of computer network

Application of Web Service Composition

Author SongCi
Tutor CuiLiQun
School Liaoning Technical University
Course Computer Software and Theory
Keywords Web Services Service Portfolio BPEL specification Service composition model Process
CLC TP393.09
Type Master's thesis
Year 2009
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In recent years , Web services implementation system has gradually become the main tool for cross-platform applications , but as people 's understanding of Web services technology , a single Web service for its services which led to a small particle size range of applications is limited this defect gradually exposed , in order to solve this flaw industry proposed a single Web service portfolio of services to meet the growing needs of enterprises . To this end we introduce the BPEL specification language such services portfolio , we propose a service composition based on this specification model . The main use of semi-automatic service composition model is a combination of methods , while using convenient service options , and dynamic binding techniques to enhance the flexibility of service composition ; when business processes a Web service exception , BPEL execution engine can UDDI registry center for inquiry, the replacement of abnormal dynamic Web service to prevent interruption of business processes . This service composition model based on a combination of business process services by running analysis, this paper shows that the Web service composition process designed to facilitate reuse of existing services, reduce unnecessary duplication of function code is written , greatly improve the software production efficiency.

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