Step 2Root cause analysis 根本原因分析tential causes of the problem - Use Ishikawa and 5 Y to establish causes列举问题产生的潜在根源— 运用 Ishikawa andPotential Causes潜在原因12345678910What failed?什么出错了?Why did it fail?为什么出错?Where should the non-conforming parts have been detected? 如何发现不符合标准的部分在哪里as the non confromance not detected? (What was the escape point)为什么不符合标准的部分没有被发现?(遗漏了哪一Most likely root cause最有可能的根源Date日期