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Geographically replicating the contents and executable objects of dynamic web applications is one of the most common technique to enhance the performance of web based applications. This work addresses the problem of delivering updates and maintaining data freshness efficiently for the distributed environment in which servers are organized in a hierarchical structure. In this paper, the cost of update...
This paper, after a careful study of the standard workflow meta-model given by WFMC, proposes a new workflow meta-model based on Web Service. This model takes advantage of the strong points of the Web service distributed computing model. Being a good extension and modification of early meta-model, it is more flexible, adaptive, and customizable. It can also smooth over the difference between various...
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