Ranking of Tools use, software logical complexity, Requirement volatility, Quality requirements, Efficiency requirements in software development

The reliability is one very important parameter of applications software(6). The most straight restriction in most software reliability models is the assumption of statistical independence among successive software(2) factors considered. Qualitative/quantitative measurement of software quality related aspects in all stages of software development are desirable. Any measurement in this line forms an element in the set of software quality metrics. Here the seven factors considered are size, effort, duration, S1 (Tools use), S2 (Software's logical complexity), S3(Requirements volatility) and S4(Quality requirements), S5(Efficiency requirements)(4) In this paper four different cases are carried out by means of principle component analysis. First analysis with size as predominant factor, Second analysis with effort as predominant factor, third analysis with duration as predominant factor, and finally including all the three associated in the list of seven factors with software reliability performance. The analysis of variables is to identify the dimension that are latent. That can be considered in the phenomena of performance correlation. This is to Study the effects in the developed principal components analysis approach.