Comparison of the accuracy of effort estimation methods

The COCOMO Model is one of the best software cost estimation models. This model is a kind of experimental model which has been made up through gathering data on different software projects, and mainly takes cost and schedule of the project under consideration. But hypotheses presented in early phases will be changing during time, and variable estimations might increase or decrease pre-suggested budget of the project. In this paper, COCOMO Model has been studied as a suggested method of cost and effort estimation. At first, different software effort estimation methods are described and finally, according to accomplished evaluations findings, the optimal COCOMO model is presented.