Progress and Quality Modeling of Requirements Analysis Based on Chaos

It is important and difficult for us to know the progress and quality of requirements analysis. We introduce chaos and software requirements complexity to the description of requirements decomposing, and get a method which can help us to evaluate the progress and quality. The model shows that requirements decomposing procedure has its own regular pattern which we can describe in a equation and track in a trajectory. The requirements analysis process of a software system can be taken as normal if its trajectory coincide with the model. We may be able to predict the time we need to finish all requirements decomposition in advance based on the model. We apply the method in the requirements analysis of homephone service management system, and the initial results show that the method is useful in the evaluation of requirements decomposition.