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Architectural models of component-based software systems are evaluated for functional properties and/or extra-functional properties (e.g. by doing performance predictions). However, after getting the results of the evaluations and recognising that requirements are not met, most existing approaches leave the software architect alone with finding new alternatives to her current design (e.g., by changing the selection of components, the configuration of components and containers, the sizing). The authors propose a novel approach to automatically generate and assess performance-improving design alternatives for component-based software systems based on performance analyzes of the software architecture.
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