RSM for Six Sigma ................................................................... Developing POE at the Simplest Level of RSM: A One-Factor

Now, we are ready to apply a tool called “POE” that applies the tools of calculus to find the flats on response surfaces. These regions are desirable, especially so if you are subjected to Six Sigma standards, because they do not get affected much by variations in factor settings. The idea is to seek out the high plateaus of product quality and process efficiency. Without the addition of POE as a criterion, computer-aided optimization might set your process on a sharp peak of response. Such a location will not be robust to variation transmitted from input variables.