经过多年的统计过程控制（SPC）培训，在车间取得了非常令人失望的结果，人们转向了使用或失去它的理念，称为4R（正确的时间、正确的数量、正确的方式、正确的支持）。在八个月内，运营部门绘制并解释了主题部门80%以上的非测试数据点的SPC图表数据。在此期间，制定了SPC计划，对操作员和工程团队进行了培训，并制定了SPC图表和控制限值。如今，运营商正在改进流程，消除特殊和常见的变异原因。

AFTER MANY YEARS OF STATISTICAL PROCESS CONTROL (SPC) TRAINING WITH VERY DISAPPOINTING RESULTS ON THE SHOP FLOOR, A SHIFT WAS MADE TO A USE IT OR LOSE IT PHILOSOPHY, CALLED THE 4RS (RIGHT TIME, RIGHT AMOUNT, RIGHT WAY, RIGHT SUPPORT). WITHIN EIGHT MONTHS, OPERATIONS WERE PLOTTING AND INTERPRETING SPC CHART DATA FOR OVER 80% OF NON-TESTER DATA POINTS ACROSS THE SUBJECT DIVISION. DURING THIS PERIOD, SPC PLANS WERE CREATED, OPERATORS AND ENGINEERING TEAMS WERE TRAINED, AND SPC CHARTS, COMPLETE WITH CONTROL LIMITS, WERE ESTABLISHED. TODAY, OPERATORS ARE IMPROVING PROCESSES AND ELIMINATING BOTH SPECIAL AND COMMON CAUSES OF VARIATION.