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An application framework for dynamic distributed software architectures
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An application framework for dynamic distributed software architectures
Progress in computer research
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Middleware '01 Proceedings of the IFIP/ACM International Conference on Distributed Systems Platforms Heidelberg
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AOSE '01 Revised Papers and Invited Contributions from the Second International Workshop on Agent-Oriented Software Engineering II
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Architecturing and configuring distributed application with Olan
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FSEN'09 Proceedings of the Third IPM international conference on Fundamentals of Software Engineering
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This paper presents Olan, a language and a run time support intended to facilitate the design, configuration and evolution of distributed applications made up of heterogeneous software components. Configuration covers two phases: for the application builder the identification of the software components and the description of their interconnections and communications; for the application administrator and maintainer the accurate use of system resources provided by the target environment, such as the placement of components on nodes. The main benefit of Olan is to provide a single unified description of distributed applications, adequate for construction, management, and evolution. The overall description is independent from the components' implementation, so that the configuration process, e.g. the production of different versions of an implementation, is decoupled from the programming process. The features of the configuration language and the functions of the runtime support system are illustrated through the example of a distributed teleconferencing application.