The W. Edwards Deming Institute Blog

Posts Tagged ‘statistics’

Using Data to Seek Continual Improvement, Not Just Process Monitoring

Dr. Donald Wheeler and Dr. Henry Neave wrote an interesting article in Quality Digest recently: Shewhart and the Probability Approach Shewhart’s use of three-sigma limits, as opposed to any other multiple of sigma, did not stem from any specific mathematical computation. Rather, Shewhart found that the use of three-sigma limits “seems to be an acceptable […]

Analyzing Data Requires an Understanding of the System Generating the Data

This recent article, Has Uber Forced Taxi Drivers to Step Up Their Game?, explores how competition from Uber has pressured the legacy taxi business to improve customer service. In exploring whether the data supports the idea that there has been an effort to improve customer service the article mentions that complaints about taxis increased in […]

Some Statistical Logic in the Management of Quality by W. Edward Deming

W. Edwards Deming wrote Some Statistical Logic in the Management of Quality to fill in some of the missing links in the use of statistical methods, with special reference to responsibilities at the management level for effective mobilization of statistical knowledge and skills. In the paper, he describes statistical control of quality as a system, […]

On the Use of Theory

On the Use of Theory is an article W. Edwards Deming published in 1956. It is one of many of his papers we have posted on our web site. Though 58 years old the ideas in the article are very useful today and yet many organizations still have not applied these ideas in their management […]

Brian Joiner Discussing His Career

In a previous post, Approaching Sustainability Using Deming’s Thinking, where you see Brian Joiner in the video (he and Andrew KcKeon were on the same panel). In this video Brian discusses his career including how he meet Dr. Deming and some personal anecdotes. I like, and share his sentiment in the following quote, at the […]

Ron Moen Webcast: Prediction is the Problem

Prediction is the Problem, Ron Moen’s presentation at the 2012 Annual Deming Conference. “Planning requires prediction. Prediction requires a theory.” In the video Ron Moen talks about the Associates for Process Improvement model for improvement. The enhanced PDSA cycle includes an explicit focus on prediction in the planing phase and then evaluation of that prediction […]

The Development of Deming’s Management System

Jan 24 1989 – first presentation of Deming’s “System of Profound Knowledge” Knowledge of variation; statistical theory Knowledge of the distinction between common causes and special causes Knowledge about the loss from tampering Knowledge about the interaction of forces Knowledge of operational definitions Knowledge psychology Knowledge of cooperation and its benefits It is interesting to […]

Enumerative and Analytic Studies

An enumerative study is focused on judgment of results. These studies are meant to enumerate (explain, evaluate, describe) the condition that exists with the existing population. On the other hand, an analytic study is focused on improvement of the process which created the results and which will continue creating results in the future. An enumerative […]