Research on method of complex system reliability design

The system functions increasingly day by day which resulting in augmenting of complexity, and system reliability and complexity were closely related by the system functions. On the one hand, reliability is the ability of the system which was required to achieve multiple functions to maintain functionality. And there is uncertainty in the process of implementing multiple functions which will bring an increase in system complexity, accordingly resulting in the ability to maintain system functions decline that is decreased system reliability. On the other hand, in order to improve the ability to maintain system functions the system complexity must be reduced, thereby increasing system reliability. In this paper, the relationship among system reliability, complexity and functions was analyzed and the axiomatic design process was introduced. Based on axiomatic design theory, the way to reduce system complexity and optimize the transfer function was shown. Eventually the method of complex system reliability design was given.