F.-P. Yang, C.H. Kao, and H.C. Jiau (Taiwan)
Design principle, perfective maintenance, experimental design, concept analysis, software metrics, statistics.
Maintenance effort becomes a major burden of many companies. Software developers hope to consider the maintenance related issues early in development phase. They can reach this goal by applying design principles. Applied design principles usually lead to higher quality of software, and such higher quality often reduce the main tenance effort dramatically. However, many other factors are not able to control through applying design principles, and their confounding effects might also be significant on software maintenance. This experiment conducted for an alyzing the impact of design principles on the maintenance effort under a varied confounding factor--the complexity of collaboration complexity. In addition to analyze the ef fect of these two factors separately, a global analysis is car ried for observing the compound effect. Finally, this exper iment used a finer granularity analysis that reflects the two phases, understanding and modifying, of maintenance pro cess to get a more operational insight of the effect. Man agers may decide to introduce some phase-specific tools or methodologies based on the measured results. All the analyses in this experiment are conducted by a technology, which is based on concept analysis, impact analysis and t-test, called CIT.
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