Alteration design and influence analysis method and system for avionics system model

The invention discloses a change design and influence analysis method and system for an avionics system model, and the method comprises the steps: obtaining an avionics system architecture design model, and determining model change contents needing to be developed according to business demands; carrying out change design of the avionics system architecture design model by comprehensively utilizing model deletion, model merging, model splitting, model hierarchy change, model interaction change and model attribute information adjustment; and according to the avionics model expression rule, analyzing the influence after the avionics system architecture design model is changed, feeding back the change influence to a designer, and finishing the change after confirmation. According to the method, change design is carried out on the avionics system model according to design requirements, model change is carried out on the avionics field model, the change influence of the model is analyzed, and it is guaranteed that