4.8 What Are Special Process Studies?
As a definition:
Special process studies involve investigations and tests to locate the causes of nonconforming products, to determine the possibility of improving quality and to ensure that improvement and corrective action are permanent and complete.
Techniques used in special process studies consist largely of special applications of the standard methods used in the other jobs of quality control together with the use of special methods. Special process studies are treated in detail in Chapter 21.