Abstract
Requirements Change is one of the critical problems facing software development. Moreover, the failure in dealing with this problem threatens the success of the software development. To handle this problem, some requirements change management models have been proposed in the literature. However, these models are lacking a logical structure as well as many important details. In this paper, a comprehensive requirements change management model is proposed. It was compared with some existing models. Results show that our model overcomes the defects and the shortage observed in those models. Our wish behind this model is to help practitioners to make changes easily, more efficiently and accurately.