Percentage data – is it continuous or discrete?

I received the following email in response to a previous article about discrete and continuous data.  The exchange has been edited slightly for ease of reading. “Hello Roger.  I enjoyed your posted article regarding discrete and continuous data. I have encountered similar discussions with other Industrial Engineers and Master Black Belts over the years. As […] read more

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

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: , ,