Resource management in the air traffic domain
ECSA'11 Proceedings of the 5th European conference on Software architecture
Proceedings of the 27th Annual ACM Symposium on Applied Computing
Adaptation space exploration for service-oriented applications
Science of Computer Programming
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An application should be self-adaptive in order to automatically and autonomously adapt its behavior for several reasons, such as service evolution (e.g. a new version may be available), hardware volatility (e.g. network quality changes) and varying users demands with new requirements (e.g. a new functionality or a different level of quality of service). In this paper we introduce a framework, based on an optimization model, that dynamically adapts a service based system (i.e. both the structural and behavioral software and hardware architecture) while minimizing the adaptation costs and guaranteeing a required level of the system qualities. Adaptation actions can be triggered both by an user request and/or automatically after the runtime violation of system quality constraints, or the appearing/disappearing of services into the environment. In particular, in this paper we give a general overview of the main components of the framework by providing a deeper discussion of the optimization model that is the core of the framework.