正交试验法能够利用较少的试验次数获得较优的结果。根据《QC小组基础教程》的定义,正交试验法(又名“正交设计法”)是“利用正交表来合理安排与分析很多因素的试验方法”。正交试验法的运用情况,能客观反映出QC小组的活动水平以及小组自身的成熟度。而对于正交表、合理安排与分析因素等概念,都要在形成系统认知后才能得以实现。在对大量客观数据整理与分析的基础上安排实 Orthogonal test method can use less number of trials to obtain better results. According to the definition of “QC Group Fundamentals,” the orthogonal test method (aka “orthogonal design method”) is a “test method that uses orthogonal tables to reasonably arrange and analyze many factors.” The use of orthogonal test method, can objectively reflect the level of activity of the QC team and the team’s own maturity. For the orthogonal table, rational arrangement and analysis of the concept of factors, must be formed after the system can be realized. Arrangements are made on the basis of collation and analysis of a large number of objective data