Apr 26 2013
Improving operations: How far can you go with common sense?
In the Lean Six Sigma discussion group on LinkedIn, Brian P. Sheets argues that ” the alphabet soup of acronyms describing the multitude of process improvement & management methodologies that have come and gone over the last 50 years […] is just plain, old, common sense.” The list he targets in this statement is Six Sigma, TQM, BPR, BPM, TOC, MBO, Kaizen, and Gemba Kaizen, and overlap the one I discussed earlier in this blog. To support his argument, he invokes not only the great work done in US manufacturing during World War II without these acronyms, but goes back all the way to Egypt’s pyramids.
I see things differently. The old days were not so great and we have learned a few new tricks in the 68 years since the end of World War II, as a result of which we are not only able to make better products, but we also use fewer people to make them, at a higher quality. There definitely is something to some of the ideas that have been packaged under various brands in that time, and it is definitely more than common sense.
What is common sense anyway? The common sense approach to a problem is the solution that would be chosen by an intelligent person without any specialized knowledge. It is what you resort to when faced with a new situation you are unprepared for, like the businessman played by Anthony Hopkins in The Edge, who is stranded in the Alaskan wilderness by a plane crash and has to kill a grizzly.
Once you have been working on something for a few years, however, you are supposed to have acquired specialized knowledge of it, and apply solutions that are beyond common sense. And these solutions are counter-intuitive to anyone without this experience. Lean manufacturing concepts like one-piece flow or heijunka are bewildering to beginners, because they have nothing to go by beyond their common sense.
“Common sense,” Descartes said, “is the most fairly distributed thing in the world, for each one thinks he is so well-endowed with it that even those who are hardest to satisfy in all other matters are not in the habit of desiring more of it than they already have.” After that, he proceeds to explain a method “to seek truth in science” and presents three applications of this method, the best known being analytic geometry. All of this is far beyond common sense.
For all these reasons, I am not too fond of invoking common sense in support of any new concept. What you really need is a rationale, and experimental proof through a small scale implementation.
Aug 21 2014
Purpose and Etiquette of On-Line Discussions
In the Lean Six Sigma Worldwide discussion group on LinkedIn, Steven Borris asked about the purpose of on-line discussions, whether they should stick precisely to the topic they were started on, and how disagreements between participants should be expressed or handled. As a participant in a variety of professional forums for the past 16 years, I have come to think of an online discussion as a conference that is always in session, in which the posting etiquette should be the same as at conferences.
Contributors should think of readers first. LinkedIn members read discussions for enlightenment, not entertainment. This isn’t Facebook. When readers browse a discussion, it is based on its subject, and that is what they expect to be covered. Like the title of a book, the name of a discussion announces what it is about. Readers are drawn to it by the need for information on that topic and have a legitimate expectation that the posts will be about it. If participants disappoint them, they go away upset at having been misled. For this reason, discussions should stick to their subject, and group moderators or managers should make sure they do, with interesting digressions spawning new discussions.
Professional readers are also turned off by personal attacks and posts that question other posters’ motives. The participants need to “play nice” with each other, but a discussion where they all express the exact same ideas would not be informative and would be dull. The contributors to the discussions I participate in often have decades of experience that have shaped their perspectives on the topics, differently based on the industries and companies they have worked for. They are not on the same wavelength.
Often, however, apparent disagreements disappear when the context is properly set. For example, in his 1999 book on Six Sigma, Mikel Harry wrote that the future of all business depends on an understanding of statistics; Shigeo Shingo, on the other hand, had no use for this discipline and wrote in ZQC that it took him 26 years to become free of its spell.
That sounds like a clear-cut disagreement. Mikel Harry developed Six Sigma at Motorola in the 1980s; Shigeo Shingo was a consultant and trainer primarily in the Japanese auto industry from 1945 to the 1980s, too early for discussion groups. Harry and Shingo worked in different industries with different needs at different times.With proper context setting, they can be both right. Posts that start with “In my experience…” and support topical conclusions with an account of what that experience go a long way towards setting that context.
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By Michel Baudin • Management • 3 • Tags: forums, LinkedIn, On-line discussions