Software maintenance exhibits many differences regarding how other engineering disciplines carry out maintenance on their artifacts. Such dissimilarity is caused due to the fact that it is easy to get a copy from the original artifact to be used in maintenance, and also because the flat dimension of the software text facilitates access to the components by simply using a text editor. Other engineering disciplines resort to different artifact 'versions' (obtained by dissassembling) where the

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... oduction of modifications (previous comprehension) is easier. After which the artifact is reassembled. In software engineering this approach can be simulated by combining program transformation techniques, search-based software engineering technology and design attributes.