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We present the results of a controlled experiment and a differentiated replication that have been carried out to assess the effect of the documentation of design patterns on the comprehension of source code. The two experiments involved Master Students in Computer Science at the University of Basilicas a and at University of Salerno, respectively. The participants to the original experiment performed...
We propose an approach that leverages lexical information and fuzzy clustering to reduce the number of the design pattern instances that existing approaches based on structural information (i.e., navigating the dependencies among software elements) erroneously recover in source code. To assess the effectiveness of the techniques, we present the results of a case study conducted on four open source...
We present the results of three sets of controlled experiments aimed at analysing whether UML class diagrams are more comprehensible than ER diagrams during data models maintenance. In particular, we considered the support given by the two notations in the comprehension and interpretation of data models, comprehension of the change to perform to meet a change request, and detection of defects contained...
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