Evaluating Gage Bias and Linearity

In an earlier article in this series, I introduced some basic issues in measurement systems analysis such as granularity, accuracy, reproducibility, repeatability, stability and linearity.  In this article we will explore in more detail how to evaluate the performance of a measurement system with respect to bias and linearity. Gage bias examines the difference between […] read more

Issues in Process Control

Earlier in this series I introduced the topics of Process Capability and Process Control. You may wish to review that article before reading this one. I recently received the following query from one of my Green Belt students: “In my company our manufacturing process has a lot of special variations which makes the process very unpredictable. […] read more

The Kano Model

In a previous article in this series we discussed a number of tools that can be used to do a better job of capturing the Voice of the Customer regarding requirements. Today we will look in more detail at one of those tools, the Kano Model. This model was developed by Dr. Noriaki Kano, a […] read more

On January 2nd, 2016, posted in: Articles, Six Sigma by Tags: , ,

The Theory of Constraints and Six Sigma

When practicing Six Sigma or any other form of process improvement, it is important to focus improvement efforts where they will do the most good. Of all of the things that we could work on, what should we work on in order to return the most benefit to the organization and the customers of the […] read more

On December 22nd, 2015, posted in: Articles, Six Sigma by Tags: , ,