After analyzing the essential characteristics and inadequacies of traditional system engineering thought and Qian Xuesen's system engineering thought, the internal and external backgrounds of model-based system engineering development are introduced, including promotion and maturity of model-driven development methods and the traditional systems engineering methods which lack accumulation and reuse of experience. Then, compared with the traditional system engineering methods, advantages of model based system engineering (MBSE) in system formal description and the future development expectation of MBSE are analyzed. It is pointed out that using MBSE to guide the construction of cyber-physical systems will be a new idea for MBSE development.

system engineering  /  model based system engineering  /  Qian Xuesen system engineering approach  /  cyber physical system