All Features
Tom Pyzdek
One of the cornerstones of quality and lean Six Sigma is data: “We insist on it.” “Don’t tell us what you think the situation is; let the data do the talking.” “In God we trust—all others bring data.” You get the idea.
An unfortunate side effect of this emphasis is the proliferation of useless…
Carly Barry
I found that training to run a marathon is a lot like completing a quality improvement project. I ran my first full marathon in November 2011, and as I was completing my training, I came across this quote about quality improvement from V. Daniel Hunt, quality management improvement author and CEO…
Donald J. Wheeler
I
n my February 1996 Quality Digest column I discussed an article out of USA Today. Since that article provides a great example of how we need to filter out the noise whenever we attempt to interpret data, I have updated it for my column today. “Teen Use Turns Upward” read the headline for a graph…
MIT News
The information age is also the age of information overload. Companies, governments, researchers, and private citizens are accumulating digital data at an unprecedented rate, and amid all those quintillions of bytes could be the answers to questions of vital human interest: What environmental…
James Brewton
Lean Six Sigma has proven itself as an effective strategy for business success in both private and public sectors. The methodology has helped enterprise leaders recognize business processes as engines that drive performance excellence and help to deliver value. Lean Six Sigma offers a…
Eston Martz
It’s all too easy to make mistakes involving statistics. Statistical software can remove a lot of the difficulty surrounding statistical calculation, reducing the risk of mathematical errors, but correctly interpreting the results of an analysis can be even more challenging.
A few years ago,…
ASQ
(ASQ: Milwaukee, WI) -- The results of ASQ’s 25th annual Salary Survey show strong average salaries for quality professionals in 2011 and fewer lay-offs as companies continue to see the value of quality and its positive impact on an organization.
The survey results also show that experience…
Donald J. Wheeler
Many times measurements are made using measurement increments which are too large for the job. Fortunately this problem is easily detected by ordinary, production-line process behavior charts. No special studies are necessary; no standard parts or batches are needed. You simply need to…
FARO
In production plants across the globe, lean manufacturing techniques are being used to meet increasing demands placed on manufacturers. Originally developed as a methodology to make production processes highly efficient, lean techniques have been adopted by more than 72 percent of machine shops…
The teaching of lean concepts is typically tuned to continuous processes: Day in, day out, value flows continuously from suppliers until the final product reaches the customer. The concepts of lead time (the time it takes individual “flow-units” to travel through a process), Takt time (the…
Mark R. Hamel
During the first winter storm this year in the Northeast, I found myself, along with hundreds of thousands of folks in the area, without power for the better part of a week. It was a long wait before the lights came on… and the heat.
Heck, they had to send the National Guard to my town, and…
Bruce Hamilton
A short time after I moved into operations as the vice president of manufacturing, our assembly department made an early and, dare I say, imperfect attempt to realign the factory floor for ease-of-material delivery and pick up. I would not describe this as improved flow because we were still…
Jay Arthur—The KnowWare Man
At a recent health-care conference I had a conversation with Mary, a Six Sigma Black Belt for a 700-bed hospital. She told me that the hospital had only a few copies of Minitab software, which was shared by several people. She was always being asked to close out of the program so that someone…
Donald J. Wheeler
From the perspective of data analysis, rare events are problematic. Until we have an event,
there is nothing to count, and as a result many of our time periods will end up with zero counts.
Since zero counts contain no real information, we need to consider alternatives to counting the rare…
Jay Arthur—The KnowWare Man
For the last decade, people have come by my booth at the American Society for Quality (ASQ) World Conference on Quality and Improvement and asked: “Isn’t there a better way to implement Six Sigma that doesn’t cost so much or take so long?” Of course there is, but conventional wisdom inhibits…
Jay Arthur—The KnowWare Man
Ask almost anyone what is the No. 1 requirement for Six Sigma success, and he will say: top leadership commitment. It’s easy to look at Six Sigma successes like General Electric (GE) under Jack Welch and use them as evidence of the power of leadership commitment. The belief is so often repeated…
Mark R. Hamel
Some lies you can see a mile away: “The check is in the mail.” “Your table will be ready in a few minutes.” “I didn’t say that.” “This won’t hurt a bit.” Add to this rather long list some lies of the lean variety. I’ve heard more than my fair share.
Often, I just shake off the falsehoods and…
Steve Moore
The quote “Baseball been berry, berry good to me” comes from one of my favorite Saturday Night Live skits from the late 1970s. Garrett Morris played Chico Escuela, a retired Hispanic baseball player who knew very little English. His pat answer for most questions—“Baseball been berry, berry good…
Bruce Hamilton
I was listening to Alan Robinson present recently at the Lean Systems Summit about the power of “small ideas.” Alan wondered aloud why so many organizations continue to pursue the few million-dollar ideas while small ideas account for more than 75 percent of the innovation outcome.
I reflected…
Mark R. Hamel
Regular tiered meetings are a staple of any company’s lean management system. The quick stand-up meetings represent part of the daily accountability process which, when combined with leader standard work and visual controls, provide the foundation for sustaining gains, rigorously practicing…
Davis Balestracci
Any article about control charts leads to inevitable (and torturous) discussions of special cause tests—all nine of them. No wonder confused people continue to use things like trend lines. But I’m getting ahead of myself.
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First of all,…
Steven Ouellette
Let's face it—many industrial researchers, including Six Sigma Black Belts, do a terrible job of planning the research they need to do to perform their jobs efficiently. See that guy over there? Yeah, he is the one I am talking about, so you should read this article so you can help the poor…
John Flaig
A run chart is a graphical display of data over time. Run charts are used to visually analyze processes according to time or sequential order. They are useful in assessing process stability, discovering patterns in data, and facilitating process diagnosis and appropriate improvement actions.…
Mark R. Hamel
First, the introduction. This post was earnestly written by my friend, Jeff Fuchs. He’s the director of the Maryland World Class Consortia, a lean nonprofit assistance organization in the mid-Atlantic. He’s also president of Neovista Consulting, which works with large and small organizations on…
Donald J. Wheeler
With the use of statistical software, many individuals are being exposed to more than just measures of location and dispersion. In addition to the average and standard deviation, they often find some funny numbers labeled as skewness and kurtosis. Since these numbers appear automatically, it is…
