System non-optimum analysis is one of the youngest branches of information science; it is not ten year s old. The date of its birth can, with certainty, be considered to be the appearance in 2003 of the by now classical work of He Ping [6]. In the following years, the research of systems’ non-optimum has developed very fast, both in theory and in practice, which involves non-optimum recognition of systems, evaluation of the optimum and non-optimum solutions, the non-optimum measurement of systems, the non-optimum differentiation and instruction of systems in the engineering areas. In reality, every system belongs to the non-optimum category. It meets the recognition and realization of mankind to analyze the causes of non-optimum system and the ways to reach optimum from the viewpoint of non-optimum category. This way of thinking is abbreviated as non-optimum tracing theory, and the theory of researching and tracing non-optimum is called non-optimum analysis theory of system.