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Syntactic composition languages like BPEL, WSCI are insufficient for end users because of many technical details. In order to reduce the complexity of service composition, various approaches based on semantic technologies and planning techniques have been developed for automatic service composition. However these approaches have focused on composition aspects and have not facilitated users expressing...
The architecture of visual process modeling tools for Web services composition based on BPEL is introduced in detail. The concepts of arcs and nodes are imported and a visual process editor is implemented. Meanwhile, graphical method and the mapping technology which maps flow chart to BPEL elements are adopted. We give the method of describing QoS ontology of Web services and propose a solution to...
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