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Uma Avaliação Empírica de Políticas de Invocação para Serviços Web Replicados

José Airton Fernandes da SilvaNabor das Chagas Mendonça

This paper presents an invocation framework for geographically replicated web services. The framework includes several server selection and invocation policies which aim at reducing web service access time at the client side. The invocation policies implemented were evaluated empirically through a series of experiments involving a web service replicated in four servers distributed over three continents, and two clients with different connection characteristics. The results show that, in addition to the individual capacity of each server, the replica selection process is affected mainly by client differences in terms of network configuration and workload distribution throughout the day.

http://www.lbd.dcc.ufmg.br:8080/colecoes/sbrc/2004/058.pdf

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