Multi-level and Multi-phased Maturity Evaluation Method for MBSE Based Complex Product Design Stage

To solve the lack of effective management and control method for product design process based on modeling system engineering method, a maturity evaluation method based on business process was proposed to improve product design process design efficiency. According to analyzing product design process based on Model Based System Engineering, the design process of the business process as the assessment object, multi-level and multi-phased business process maturity model was established. After analyzing the design results of the transfer and iteration, maturity model upgrade or degrade principle was proposed to guide the delivery of design results and iterative processes, contribute to realize the management and control process based on maturity model. Finally, by assessing the maturity of the business process of the environmental control system at the design stage of the spacecraft program, the evaluation method was verified.