Oct 23 2017
There Is More To Data Than Just Numbers
Don Wheeler’s Understanding Variation starts with a chapter entitled “Data are random and miscellaneous” that contains no discussion of any part of its title. Implicit in Wheeler’s book, however, is the view that data consists of tables of numbers, representing either measured variables — lengths, weights, densities,… — or event occurrence counts — defective units, defects, machine failures,…
Many times, I have quoted computer scientist Don Knuth on this subject, saying that data is “the stuff that’s input or output,” meaning anything that can be read or written, and it includes much more than tables of numbers. The data we work with today includes, for example, the following:
- Unstructured text, like 25,000 incident reports written by maintenance techs all over the world in their versions of English about problems with jet engines, or thousands of product reviews posted by consumers on e-commerce sites
- Images, like photographs of visual defects on products, or electron-microscope images of integrated circuits.
- Videos recordings of operations.
- …
Analyzing data about a manufacturing process today means extracting information from all sources. The state of the art, based on automatic data acquisition and databases includes analytical techniques that were unthinkable in Shewhart’s day, known under the labels of data science, data mining or machine learning.
“Six Sigma as a problem-solving methodology causes many hang-ups for Japanese managers. Many Americans seeking training in Six Sigma in Japanese organizations face resistance with little explanation as to why. This often leads to frustration and contempt towards management. They write off the Japanese resistance to the training as resistance to change, preventing growth and feeling unrepresented.
Feb 15 2020
Whatever became of Six Sigma? | Alfred Kieser | brand eins
“TQM and Six Sigma are management fads that obey similar laws to clothing fashions. There are fashion designers who create the trend, and multipliers who disseminate and popularize it. These primarily include business consultants, but also scientists, managers, non-fiction authors or journalists. And there is the customer base that hopes to benefit from going with the fashion without having to think about it or take responsibility.”
Source brand eins
Michel Baudin‘s comments: Thanks to Ferdinand Grah for drawing my attention on LinkedIn to this interview of German management thinker Alfred Kieser. The article is in German. In it, Kieser paints a bleak picture of Six Sigma at GE and how former CEO Jack Welch leveraged it to his own benefit while wrecking the organization with rank-and-yank management. As for agility, he sees it as “just as content-free as the Balanced Scorecard.”
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By Michel Baudin • Press clippings • 2 • Tags: Agility, Management fads, Six Sigma