A Comparative Study for Software Cost Estimation Using COCOMO-II and Walston-Felix models

Software cost estimation is an important area in software project management life cycle. Accurate estimation of the effort in term of person month and development time is required before startup of a project. There are many software cost estimation models such as algorithmic and non-algorithmic. This paper presents the comparison between two models that is Constructive Cost Model II (COCOMO-II) and Walston-Felix models. The experiment is conducted on NASA and Turkish industry software projects. From the simulation results it shows that the COCOCMO-II has the better result than the WalstonFelix in term of Mean Magnitude of Relative Error (MMRE) for both dataset. Keywords—COCOMO-II, Walston-Felix, MMRE, NASA project, Turkish Industry software projects

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