Requirement Change Impact Analysis Model for Civil Aircraft - The Topological Relationship Between the Itemized Requirement Model and the Design Data

Based on the requirements of civil aircraft, this paper makes a deep study on the topology model and change control method of aircraft design data to solve the problem of uncomprehensive impact analysis of requirements change. Due to the high complexity, interdisciplinary, highly integrated, long development life-cycle and diverse customer needs of civil aircraft, effective management and control of requirements change is very important. With the progress of complex engineering projects, the cost of requirement change increases exponentially, so it is important to identify and control the change in the early stage. Requirements changes can be caused by a variety of factors and need to be evaluated, approved and implemented to minimize change costs and risks and meet customer expectations. This paper introduces the topological relationship between the civil aircraft itemized requirement model and the design data, and forms a requirement change impact analysis model to help the requirement engineer assess the impact of the requirement change in the whole life cycle process and the degree of impact. And it can reduce the risk of repeated changes, prolonged life-cycles, and increasing costs due to insufficient change impact analysis. Through this research, it is expected to improve the efficiency and quality of civil aircraft development and reduce project risks.