How Is Statistical Process Control Used?
Manufacturing personnel use Statistical Process Control (SPC) extensively to prevent nonconforming material. SPC is a method for assessing if the process is changing and determining if the manufacturing process is predictable. What Does SPC Provide Decision Makers? SPC consists of a set of statistical tools that provide feedback about the abilities and limitations of a process. These tools should be applied to key/critical processes. SPC presents the decision maker with relevant facts and, in many cases, provides an estimate of the probability of making a wrong or right decision. What Can Cause Production Problems? During the production process, various problems may arise that will adversely affect the acquisition process. There are five major causes of these production problems: • Unstable Rates and Quantities • Design Instability • Undue Emphasis on Schedule • Inadequate Configuration Management System • Inattention to Environmental Impact It is important to understand these “warning
