The method of obtaining subject capability metric requirement space

problems in complex systems cannot be evaluated by establishing simulation models because of their integrity, nonlinearity, openness and uncertainty. In order to fully consider the integrity and uncertainty of complex systems, this paper analyzes the contents and principles of experimental design, and the advantages of evidence theory, studies the three membership degree support vector machine model, and puts forward the subjective demand space generation method for capability metrics. Taking the performance analysis of the key penetration capability metric of a certain fighter aircraft as an example, the model is verified with sample data, which shows that the method had a good application prospect.