Content by Harish Jose

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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...
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Harish Jose
Today I’m looking at the profound phrase of Canadian philosopher and a media theorist Marshall McLuhan, “The medium is the message.” McLuhan noted that: “Each medium, independent of the content it...
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Harish Jose
The TV show The Walking Dead, about survival in a post-apocalyptic zombie world, is one of the top-rated currently. I’ve written previously about the show, but today I want to briefly look at...
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Harish Jose
One of my favorite things to do when I learn new and interesting information is to apply it to a different area to see if I can gain further insight. Here, I am looking at the principle, “Chekhov’s...
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Harish Jose
I am writing today about “bootstrap kaizen.” This is something I have been thinking about for a while. Wikipedia describes bootstrapping as “a self-starting process that is supposed to proceed...
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Harish Jose
I am a quality manager by profession. Thus, I think about quality a lot. How would one define “quality?” A simple view of quality is “conformance to requirements.” This simplistic view of...
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Harish Jose
I came across an interesting phrase recently. I was reading Kozo Saito’s paper, “Hitozukuri and Monozukuri,” and I saw the phrase “kufu eyes.” Kufu is a Japanese word that means “to seek a way out of...
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Harish Jose
I have written about sample size calculations many times before. One of the most common questions a statistician is asked is, “How many samples do I need—is a sample size of 30 appropriate?” The...