An Improved SoSE Model – The “V+” Model

An improved model from the V-model called V+ model is proposed in this paper based on the existing SoSE research and our engineering experience. This model aims to solve the problems arising from the lack of integrity, inability to decompose SoS’s capability in a static way and untimely verification of SoS’s capability when the traditional V-model of systems engineering is applied to SoSE. This V+ model divides the SoSE process into two levels, the SoS level and the system level. At the SoS level, a system top-level operational process model and a unified information space database have been established, and the key process model “DE-CAMPS” model has been established also. At the system level, the constituent systems are classified according to their engineering phases, and choose different system engineering cutting processes, therefore building a complete SoSE model. Finally, the feasibility of this model is verified during the engineering practice of the complex aviation support system.