A new cost estimation model refined by factor analysis based on risk questionnaire to project managers

摘要

This paper proposes a cost estimation method using factor analysis based on a risk questionnaire for project managers. We have tried to develop a method to estimate costs and durations by the risk questionnaire and multiple regression analysis. However, some risk factors in the questionnaire, that have indirect effects to software development cost and duration, are sometimes excluded from estimating expressions. In the proposed method, we summarize risk factors into some representative factors by the factor analysis. We then perform multiple regression analysis to estimate development costs and durations using summarized factors. The result of experimental evaluation shows effectiveness of the proposed method.