TS 16949 certification Objective 1, in the supply chain continuous improvement of quality improvement ⑴ ⑵ ⑶ improve productivity to reduce costs 2, emphasizing defect prevention ⑵ ⑴ SPC application error protection 3, reduction of variation and waste ⑴ ensure inventory turnover and Additional quality lowest cost inventory ⑵ ⑶ non-quality costs (to be line time, excessive handling