Early cost estimation of software reworks using fuzzy requirement-based model

Defects uncovered during software testing usually consume a considerable amount of the overall project's budget. Unfortunately, project managers are not well-equipped with techniques to estimate such cost overrun. Moreover, incorporating defects removal process as part of the software testing activities has made the project managers overlook this important cost component during their planning processes. This paper suggested a fuzzy model to estimate the cost of defects removal at the early stages of project planning in terms of the project's functional size and the experience of the development team. The suggested model is supposed to enhance the accuracy of the software project cost estimation.