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This paper applies a formalization of the use of UML to the VPN service management system. An approach that supports a use case-driven, step-wised and incremental development in building models for the VPN service management system is studied in detail. The actual process of building the models shows the importance and feasibility of the formalization(More)
Nowadays, there are more and more services with the same functionality and different Quality of Web Services (QoWS) published on the web. For QoWS-aware service composition, the large number of candidate services will result in the increase of the process time for composing services under user constraints. In order to prevent to traverse all candidate(More)
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