In companies, a variety of measurement data is collected to govern product and process quality. A key question in the process is: How large does the sample have to be to produce reliable results? In this respect, “gut decisions” are all too common in practice. In order to keep the effort involved and costs low, it’s expected that as few parts as possible be tested. On the other hand, as many parts as necessary must be tested so as not to jeopardize the ability to acquire knowledge.

Cover customer satisfaction through product and process quality as well as audit and FMEA requirements. Multiple benefits in practice.