Search Based Structure Improvement

SET 2004 - A software system’s structure degrades increasingly during its lifetime and therefore it gets harder and harder to maintain. As a result the structure needs to be reconditioned from time to time. The problem is to change the structure at the appropriate places, since an improvement at one spot might lead to a degradation at another. This paper describes a new methodology that, starting from an initial structure, computes a behaviorally equivalent structure, having better metric and heuristic values being used to assess the structure’s quality. This new structure can then be used to derive the refactorings needed to transform the existing source code. The main idea is to treat the problem as a search problem and to solve it using a genetic algorithm.

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