Before SPC operators would adjust their equipment based upon current readings. If the reading is taken when the processes normal variation is in a low cycle the operators adjustment will swing the process variable high. Adjustments made without SPC methodology tend to make the process swing high and low.

Question

Quizplus · Accepted Answer

Without Statistical Process Control (SPC) methodology, operators might adjust equipment based on immediate readings without understanding the process's natural variation. This can lead to over-adjustments that cause the process to oscillate, swinging between high and low values, rather than maintaining a stable, optimal performance level.

Before SPC Operators Would Adjust Their Equipment Based Upon Current