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Davis Balestracci
In my last column, I considered two of the most common questions faced by a statistical educator and the deeper questions that need to be addressed. I encouraged people to consider their everyday reality for the necessary context. Predictably, some become frustrated by my lack of concise answers…
Ryan E. Day
Last month I, along with millions of other people around the world, celebrated Easter. For myself, a religious observance, for others a celebration of seasonal renewal. I think for most people, Easter is a time that elicits reflection on what matters most in the world. The state of the global…
Carly Barry
A few years ago I wrote about the difficulties that can ensue when you’re trying to get started on a lean Six Sigma or quality improvement initiative. What can be especially difficult is having many potential projects and you aren’t sure which one will give the most bang for your buck.
When it…
Mark R. Hamel
What do bus schedules have to do with a lean management system? Quite a bit, even though, obviously, the notion of a bus schedule is more metaphor (or is that analogy?) than reality.
Effective lean management systems are largely constituted by “mechanics” and lean leadership behaviors. The…
Taran March @ Quality Digest
Football is one of life’s mysteries for me. Despite a lifetime of passing television screens where blockish humanoids coalesce and separate against a green background, I can’t get past my shallow impression of huddle and muddle.
However, this has given me at least a rudimentary understanding of…
David Fenn
When listening to people new to ISO 9001, one of the main stumbling blocks preventing them from starting is the belief that they simply don’t have the time. With so much on their plates, they argue, how could they possibly take on something as fundamental as ISO 9001?
At such times I like to…
Bruce Hamilton
For many years I worked for a manufacturer of pressure and temperature switches, a small company with a very big product selection. In our product catalog there were roughly three dozen distinct product families with hundreds of standard products, each available with thousands of optional…
Joel Smith
A couple of years ago, I wrote a blog post titled "What I Learned From Treating Childbirth as Failure" that conveniently ended up getting published the day before my daughter was born. You should read it first, but to summarize, it demonstrates how we can predict the odds of an event happening…
Dan Nelson
When we think of plan-do-check-act (PDCA), W. Edwards Deming might spring to mind… and Walter Shewhart, maybe Kaoru Ishikawa as well. But the thinking that results from PDCA today can most always be traced to Shewhart’s 1939 book, Statistical Method From the Viewpoint of Quality Control; these…
NIST
JILA researchers have engineered a short, flexible, reusable probe for the atomic force microscope (AFM) that enables state-of-the-art precision and stability in picoscale force measurements. Shorter, softer, and more agile than standard and recently enhanced AFM probes, the JILA tips will benefit…
Kevin Meyer
I’ll preface this article by saying that yes, I’m from crazy California. I eat granola with fruits and nuts in the morning, am vegetarian (well, pescatarian), dislike wearing shoes, and practice yoga. At least I don’t have dreadlocks—yet. So there—now you’re warned.
I’m currently winging my way…
Mike Micklewright
Years ago, there was a memorable TV commercial of a toaster waffle that had this very memorable tag line: “Leggo my Eggo.” Today, this product still exists, as does the tag line, but the tag line is much more obscure than it once was.
Today, CEOs and top executives everywhere are quaking in their…
Patti Arms
When you consider rising energy costs, the uncertain nature of foreign fuel sources (regardless of the country in which you operate), and the environmental impact associated with many fuels, then any system that helps you wisely manage your energy consumption and improve your energy performance…
Dave K. Banerjea
Story update 4/24/2014: We bumped up the cost of accreditation based on comments that the original article was on the low side. We also added references to ILAC as well as additional accreditation bodies that operate in the United States (ACLASS, NVLAP, L.A.B.)
Getting calibration accreditation is…
Bruce Hamilton
An old TV series I watched recently reminded me of an experience I’ve had many times in my work. In this I Love Lucy episode, Lucy is ordered by Ricky to create a schedule to make her “more efficient.” A schedule board, posted in their home, is a “best practice,” but without the best intent. The…
Christine Schaefer
On April 6, 2014, U.S. Secretary of Commerce Penny Pritzker presented two U.S. organizations with the Malcolm Baldrige National Quality Award, the nation’s highest honor for organizational innovation and performance excellence.
The 2013 award recipients are: • Pewaukee School District in Pewaukee…
Miriam Boudreaux
In part one of this series I described how many auditors want your quality manual to repeat what is in ISO 9001, API Spec Q1, or API Spec Q2. Since auditors don’t always make the connection between how you wrote the quality manual (in a way that’s useful for you) and the standards in question, your…
Alan Nicol
When we learn the ways of lean methodology, we’re taught that there are two types of waste: pure waste, which needs to be eliminated; and necessary waste, which does nothing to improve our performance or profits but must be produced anyway.
I’ve decided that there’s a third type of waste, called…
Patrick Runkel
My previous article examined how an equivalence test can shift the burden of proof when you perform a hypothesis test of the means. This allows you to more rigorously test whether the process mean is equivalent to a target or to another mean.
Here’s another key difference: To perform the analysis…
Ryan E. Day
And so the debate rages on about whether the wildly popular Flappy Bird app is actually a tool for teaching lean or teaching theory of constraints. Really? No, not really. But at least I’m not the only one thinking about it.
Actually, it was Jens Woinowski’s article “What You Can Learn about Lean…
Patrick Runkel
With more options come more decisions. With equivalence testing added to Minitab 17, you now have more statistical tools to test a sample mean against target value or another sample mean.
Equivalence testing is extensively used in the biomedical field. Pharmaceutical manufacturers often need to…
Dan Nelson
Why is internal auditing important to your quality management system (QMS)? To ensure that processes conform to ISO 9001 requirements, or to ensure that the company conforms to management’s own defined plans? Although audits can be done for both reasons, the second choice is more important.…
Davis Balestracci
To summarize my last three articles, most improvement approaches come out of the same theory and are based on the assumption that everything is a process.
The universal process flowchart in Figure 1 sums it up beautifully. The boxes at the top are how executives think the process works. The…
Lean Math With Mark Hamel
Available time for changeovers per period (Ta∆), also called available time for (internal) setups, represents the time per a given period (e.g., day, shift, week) during which a machine, equipment, or resource can be changed over (i.e., from one product to another, prepared for a different medical…
Carly Barry
Ugh, your process is producing some parts that don’t meet your customer’s specifications. Fortunately, after a little hard work, you find a way to improve the process.
However, you want to perform the appropriate statistical analysis to back up your findings and make it easier to explain the…