You can't control the unfamiliar : a study on the relations between aggregation techniques for software metrics

    Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

    41 Citaten (Scopus)

    Samenvatting

    A popular approach to assessing software maintainability and predicting its evolution involves collecting and analyzing software metrics. However, metrics are usually defined on a micro-level (method, class, package), and should therefore be aggregated in order to provide insights in the evolution at the macro-level (system). In addition to traditional aggregation techniques such as the mean, median, or sum, recently econometric aggregation techniques, such as the Gini, Theil, Kolm, Atkinson, and Hoover inequality indices have been proposed and applied to software metrics. In this paper we present the results of an extensive correlation study of the most widely-used traditional and econometric aggregation techniques, applied to lifting SLOC values from class to package level in the 106 systems comprising the Qualitas Corpus. Moreover, we investigate the nature of this relation, and study its evolution on a subset of 12 systems from the Qualitas Corpus. Our results indicate high and statistically significant correlation between the Gini, Theil, Atkinson, and Hoover indices, i.e., aggregation values obtained using these techniques convey the same information. However, we discuss some of the rationale behind choosing between one index or another.
    Originele taal-2Engels
    TitelProceedings of the 27th IEEE International Conference on Software Maintenance (ICSM 2011, Williamsburg VA, USA, September 25-30, 2011)
    UitgeverijInstitute of Electrical and Electronics Engineers
    Pagina's313-322
    DOI's
    StatusGepubliceerd - 2011
    Evenementconference; 27th IEEE International Conference on Software Maintenance (ICSM 2011) -
    Duur: 1 jan 2011 → …

    Congres

    Congresconference; 27th IEEE International Conference on Software Maintenance (ICSM 2011)
    Periode1/01/11 → …
    Ander27th IEEE International Conference on Software Maintenance (ICSM 2011)

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