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Previous issue date: 2012-08-09 === Currently, there is a growing trend for exposing software, through the Internet, as services. This new business model is called Software as a Service , where applications are no longer sold as a product, but instead are rented as a service and used by customers, who pay only according to use. However, solutions that were not developed with a focus on integration, can not easily enter into this new trend. PEPS (Performance Evaluation of Parallel Systems) and PLAT (Production Line Analysis Tool) are examples of tools into this situation. Although they are efficient and reliable solutions to solve, respectively, Stochastic Automata Networks models and theoretical performance models of serial production lines, neither have mechanisms for integration. Thus, this work proposes: Firstly, the specification of a generic and reusable framework for the provision of legacy codes as services; and secondly, the implementation of this framework for the provision of PEPS and PLAT as services. === Atualmente, existe uma crescente demanda por se disponibilizar, atrav?s da Internet, software na forma de servi?os. Este novo modelo de neg?cio ? denominado de Software como Servi?o, aonde aplica??es n?o s?o mais vendidas como um produto, mas sim cedidas na forma de um servi?o e utilizados por clientes, que pagam apenas de acordo com a utiliza??o. Entretanto, solu??es que n?o foram desenvolvidas com o foco em integra??o, n?o conseguem entrar facilmente nesta nova tend?ncia. PEPS (Performance Evaluation of Parallel Systems) e PLAT (Production Line Analysis Tool) s?o exemplos de ferramentas que se enquadram nesta situa??o. Apesar de serem solu??es eficientes e confi?veis para a solu??o de, respectivamente, modelos de Redes de Aut?matos Estoc?sticos e modelos te?ricos de linhas de produ??o seriais, nenhuma das duas possui mecanismos de integra??o. Neste sentido, este trabalho prop?e: Primeiro, a especifica??o de um framework gen?rico e reutiliz?vel para a disponibiliza??o de ferramentas na forma de servi?os; Segundo, as implementa??es deste framework para a disponibiliza??o dos software PEPS e PLAT na forma de servi?os.
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