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: , ,

Shainin Methods

Previously we discussed Taguchi Methods as an alternative to classical Designed Experiments. Another approach to experimentation is Shainin Methods, as developed by Mr. Dorian Shainin and strongly advocated by Mr. Keki Bhote. The late Dorian Shainin began introducing a series of experimentation techniques in the 1930’s and continued his work for nearly 50 years. Keki […] read more

Taguchi Designed Experiments

Classical Designed Experiments (DOE) were discussed in a previous article in this series.  In the last article we discussed descriptive statistics that describe the center of an output or response (mean, median and mode) and the amount of variability in the output or response (range, standard deviation and variance). Taguchi Designed Experiments are an alternative […] read more

On November 10th, 2015, posted in: Six Sigma by Tags: , , ,

Descriptive Statistics

In the Analyze phase of Six Sigma, we take the data that we collected in the Measure phase and try to make some sense of it.  We use statistical thinking and analysis to prove or disprove our hunches about what is going on in a process, and to identify the true root cause of a […] read more

On October 15th, 2015, posted in: Articles, Six Sigma by Tags: ,