Study On Supplier Incoming Inspection Based Improving Defect Parts Per Million Method

With global economic integration of the sustainable development, as the advanced and first global economic integration industry—automotive, this is necessary element to support automotive industry development. Supplier chain is the chain to get this goal. Every automotive company join in this supplier chain. With supplier chain, it must have supplier and customer and also delivery. Delivery must be with incoming inspection. This paper plans to forecast supplier's quality level according to incoming parts's quality performance with defect mode number method.How to evaluate the supplier's performance by incoming parts is the continue task for automotive industry. This paper study GSH supplier performance evaluate system and the character of incoming inspection base on anylasis supplier performance evaluate system and incoming inspection management., and find the disadvantage and problem. Make a improve plan. This paper pursue the science method to improve the supplier performance evaluate system by defect mode number. According to the defect mode number and incoming parts's performance, we try to get the process quality level for supplier. Then we apply fly audit to evaluate two suppliers with two products. Compare the result between fly audit and defect mode number. Apply the hypothesis testing and statistic method and SPC theory certificate the result effective and reliable. This is to prove the reasonable and reliable after improving.