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dc.contributor.authorCounsell, S.
dc.contributor.authorHall, T.
dc.contributor.authorBowes, D.
dc.identifier.citationCounsell , S , Hall , T & Bowes , D 2010 , ' A theoretical and empirical analysis of three slice-based metrics for cohesion ' , International Journal of Software Engineering and Knowledge Engineering , vol. 20 , no. 5 , pp. 609-636 .
dc.identifier.otherPURE: 93519
dc.identifier.otherPURE UUID: ca6c974d-1f2f-4586-83da-1d83769654fa
dc.identifier.otherdspace: 2299/5734
dc.identifier.otherScopus: 78650607491
dc.descriptionOriginal article can be found at : Copyright World Scientific Publishing [Full text of this article is not available in the UHRA]
dc.description.abstractSound empirical research suggests that we should analyze software metrics from a theoretical and practical perspective. This paper describes the result of an investigation into the respective merits of two cohesion-based metrics for program slicing. The Tightness and Overlap metrics were those originally proposed by Weiser for the procedural paradigm. We compare and contrast these two metrics with a third metric for the OO paradigm first proposed by Counsell et al. based on Hamming Distance and based on a matrix-based notation. We theoretically validated the three metrics using the properties of Kitchenham and then empirically validated the same three metrics; some revealing properties of the metrics were found as a result. In particular, that the OO-based metric was the most stable of the three; module length was not a confounding factor for the Hamming Distance-based metric; it was however for the two slice-based metrics supporting previous work by Meyers and Binkley. The number of module slices however, was found to be an even stronger influence on the values of the two slice-based metrics, whose near perfect correlation with each other suggests that they may be measuring the same software attribute. We calculated and then compared the three metrics using first, a set of manufactured, pre-determined modules as a preliminary analysis and second, approximately nine thousand functions from the modules of multiple versions of the Barcode system, used previously by Meyers and Binkley in their empirical study. The over-arching message of the research is that a combination of theoretical and empirical analysis can help significantly in comparing the viability and indeed choice of a metric or set of metrics. More specifically, although cohesion is a subjective measure, there are certain properties of a metric that are less desirable than others and it is these 'relative' features that distinguish metrics, make their comparison possible and their value more evident.en
dc.relation.ispartofInternational Journal of Software Engineering and Knowledge Engineering
dc.titleA theoretical and empirical analysis of three slice-based metrics for cohesionen
dc.contributor.institutionSchool of Computer Science
dc.contributor.institutionScience & Technology Research Institute
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review

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