Statistical Process Control (SPC)
Blog: Biz-Performance, David Brown
When to Use
The first step when using SPC is to ensure that the process is “in control”, i.e. appropriate measurements are within established control limits. If a process is found to be out of control, analysis must be completed to determine and rectify why process performance is outside the established variances. Once a process is in control, the variances can be gradually and systematically reduced to continuously improve the performance of the processes being analysed.