Small size sampling inspection method for complex system

Products with high value and small lot require small size sampling plan which can not solved by traditional single sampling inspection method. Combining with the single sampling inspection, a new integrated sampling method for series system was discussed in detail, which can make full use of subsystems' test information. The main contribution is that presenting the data converting method of sampling data of subsystems converted into sampling data of system based on series system, and guiding two types of risk probability formula. A special sampling inspection case was presented, the result shows that the proposed method is feasible, and demonstrates that it is better than traditional sampling inspection method for effective to reduce the sample size and probability of two types of risks.