MBSE Development Process of Urban Rapid Train Based on DODAF

With the guidance of model-based Systems engineering (MBSE) method and reference to the Department of Defense Architecture Frame work (DoDAF), this paper carries out the operation scenario analysis of Urban Rapid Train (URT), uses the scenario modeling and requirement capture methods, and integrates the function driving of structural analysis with the object-oriented thought of UPDM. This paper presents a design idea of URT based on UPDM language architecture. The block graph and activity graph of UPDM are used to design the enhanced structure. Combining the “departure scene” of URT, the whole process of DODAF product generation is described in combination with specific operation scenarios, and the application of UPDM model in architecture design is described graphically. The integration of requirement analysis, function decomposition and system integration is a behavior-driven system engineering process.