Content by Harish Jose

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Harish Jose
Shigeo Shingo is one of my heroes in industrial engineering. He had a great mind that thrived on curiosity. Today I am looking at Shingo’s Whys. This is in contrast to Taiichi Ohno’s 5 Whys method....
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Harish Jose
In today’s column, I am looking at wu wei, which is an important concept detailed in the Chinese classic text, Tao Te Ching. This term is generally translated into English as wu = no, wei = action,...
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Harish Jose
As readers of my columns know, I am an ardent student of the Toyota Production System (TPS). One of the core philosophies of TPS is kaizen, often translated from Japanese as “continuous improvement...
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Harish Jose
In today’s column, I’m looking at Weber’s Law. It’s named after Ernst Heinrich Weber (born June 24, 1795, died Jan. 26, 1878), a German physician who was one of the pioneers of experimental...
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Harish Jose
It has been a while since I have written about statistics, and I get asked a lot about a way to calculate sample sizes based on reliability and confidence levels. So today I am sharing a spreadsheet...
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Harish Jose
Today I’m looking at design from a cybernetics viewpoint. My inspirations come from cybernetics and design theorists Ross Ashby, Stafford Beer, Klaus Krippendorff, Paul Pangaro, and Ranulph Glanville...
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Harish Jose
One of my favorite equations from Factory Physics, by Wallace Hopp and Mark Spearman (Waveland Press, third edition, 2011) is Kingman’s formula, usually represented as “VUT.” The VUT equation...
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Harish Jose
After reviewing Mark Graban’s wonderful book, Measures of Success (Constancy, 2018), I started rereading Walter Shewhart’s books, Statistical Method From the Viewpoint of Quality Control (...
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Harish Jose
I must confess up front that the title of this column is misleading. Similar to the Spoon Boy in the movie, The Matrix, I will say, “There is no lean problem or a Six Sigma problem. All...
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Harish Jose
Today I’m looking at Factory Physics and the Toyota Production System (TPS). My main references for the post are the 1977 paper co-authored by ex-Toyota president Fujio Cho and key ideas from Factory...