工序质量波动图(简称波动图)是多品种、小批量生产企业,在工序质量控制点上用来控制质量特性波动的控制图。它具有使用方便、观察分析简易的特点,并能结合企业内控标准和“三自一控”(自检、自分、自打工号、控制自检准确率)、专检人员错漏检考核 Process quality fluctuation chart (referred to as the volatility diagram) is a multi-species, small batch production enterprises, quality control points in the process of quality control points used to control fluctuations. It is easy to use, simple observation and analysis of characteristics, and can be combined with internal control standards and “three self-control” (self-test, self-division, since the job number, control self-test accuracy)