All Features
Bruno Scibilia
My main objective is to encourage greater use of statistical techniques in the service sector and present new ways to implement them.
In a previous blog, I presented an approach you can use to identify process steps that may be improved in the service sector (quartile analysis). here I’ll show…
Matthew Barsalou
While reading a list of 5S activities, I thought, “Am I mistaken?” The activities on the list didn’t match what I thought they should be. I dug a little deeper and discovered there has been a lot of variation in the translation from Japanese to English for the methodology called 5S, which is often…
Lean Math With Mark Hamel
Triangle kanban, one of three types of signal kanban, is unique in that there is only a single kanban per part number or stock-keeping unit. Accordingly, kanban-sizing math has nothing to do with determining the number of kanban; that’s obviously fixed.
Instead, the math is focused on determining…
Davis Balestracci
My last column, “Can We Please Stop the Guru Wars?” made the case that the various improvement approaches are all pretty much the same. To recap, there are seven sources of problems with a process. The first three sources help frame the situation.
They are: Source No. 1. Inadequate knowledge of…
Bruce Hamilton
Across a large swath of the United States, the winter has been especially cold, snowy, and dreary this year. So here’s a post with a link to a cheery video at the end, just to pick my spirits up—and maybe yours, too.
The English language can be confounding. For example, the word “turkey” is slang…
Jim Benson
How do you know when to clean up your kanban’s Done column? When it’s full.
When we showed our board to people in classes and on consulting engagements, the Done column showed that we were really, really productive. It was huge. It went on forever. Hundreds of completed tasks.
So, how do we clean…
Donald J. Wheeler
Students typically encounter many obstacles while learning statistics. In 44 years of teaching I have discovered some distinctions that help students overcome these obstacles. This article will remove some sources of confusion concerning the relationship between statistical process control (SPC)…
Quality Transformation With David Schwinn
I was reminded recently of the passing of Thomas Berry, one of the most eminent cultural historians of our time. His work and insight have been touchstones for me for the last 30 years.
For me, the story starts in 1993 when my wife, Carole, and I were invited to help the folks in the North Simcoe…
Jay Arthur—The KnowWare Man
Let’s face it: Everyone isn’t cut out to be a belted Six Sigma guru, but everyone should know how to use key tools in the right order to solve the problems facing businesses. And they can’t wait months or years to get results; the marketplace moves too quickly.
During the early 1990s, I attended…
Mark R. Hamel
Larry Loucka, a close friend and colleague, recently pointed me to a Feb. 16, 2014, article in The Wall Street Journal (WSJ). Now, before you roll your eyes and give me the WSJ-isn’t known-for-getting-the-lean-thing-right look, hear me out. What the journal published is really, really good stuff—…
Bob Emiliani
Let’s get rid of value stream maps. I can hear it now: “Why would you say such a thing? Value stream maps are great. We can’t see waste without them.”
Precisely.
Value stream maps have developed an outsized importance in relation to other types of basic information that one gathers when trying to…
Mike Micklewright
Editor’s note: Mike Micklewright will be a guest on Quality Digest Live, on Feb. 28, 2014, at 11 a.m. Pacific/2 p.m. Eastern. Micklewright will also present a webinar, “Sustaining Lean Improvements While Adding Spark to Your QMS,” on March 6, 2014, at 11 a.m. Pacific/2 p.m. Eastern.
Many years ago…
John Flaig
Engineers have used safety margins for centuries to protect their companies and customers from the consequences of product degradation and failure. Sometimes the safety margins are fairly obvious (e.g., maximum-load limits posted in elevators), and other times they’re not.
Design margins are…
Mark Rosenthal
Over the years, I’ve observed a number of efforts at various companies to implement A3 problem solving, an approach based on the plan-do-check-act (PDCA) cycle that summarizes the problem and solution on a folded form, usually 11 in. × 17 in. I worked for some of those companies; I’ve observed…
Alan Nicol
In part one, we looked at the importance of understanding findings in order to make better decisions. To do this we and our decision-making leaders must become adept at data investigation and analysis so we can ask critical questions.
In part two I want to emphasize another truth that will prevent…
Eston Martz
In part one, I shared a case study of how a small bicycle-chain manufacturing company in India used Six Sigma’s DMAIC approach to reverse declining productivity. After completing the define, measure, and analysis phases, the team had identified the important factors in the bushing creation process…
Mike Figliuolo
PowerPoint is the devil’s instrument, and when you use it, you risk becoming a musician in his demonic orchestra. All of us are required to give presentations in some form or fashion at various points in our careers. If you’d like to succeed in those efforts, there are three things you should never…
Eston Martz
Using data analysis and statistics to improve business quality has a long history. But it often seems like most of that history involves huge operations. After all, Six Sigma originated with Motorola, and was embraced by thousands of other businesses after it was adopted by a little-known outfit…
Akhilesh Gulati
Editor’s note: This article continues the series exploring structured innovation using the TRIZ methodology, a problem solving, analysis, and forecasting tool derived from studying patterns of invention found in global patent data.
Belinda started the My Executive Council (MEC) meeting on an upbeat…
Davis Balestracci
The various improvement approaches are, in essence, all pretty much the same. Any competent practitioner would neither want to be called a “guru” nor have any problems dealing with another competent practitioner of another improvement philosophy.
In my opinion, any approach should also involve the…
Donald J. Wheeler
Last month in “The Analysis of Experimental Data,” I presented a method for analyzing experimental data that was built on the use of the range statistic as a measure of dispersion. In this day of computers and software, why should we even consider using ranges in our analysis of experimental data…
Carly Barry
I had the opportunity to speak with a great group of students from the New Jersey Governor’s School of Engineering and Technology—a summer program for high-achieving high school students. Students in the program complete a set of challenging courses while working in small groups on real-world…
Tom Kadala
With 90 percent of the world’s data created during the last two years, what can we expect our data vaults to hold two or even 20 years from now? Today we measure our lives in peta-bytes, but by 2020 estimates show a 2,300-percent increase in the bits and bytes that will define our lives.
How then…
Tripp Babbitt
W. Edwards Deming is often given as the source for the following quote: “Managing a business on historical data is like driving a car while looking in the rearview mirror.” Deming actually borrowed the quote from Myron Tribus. The idea is that management should be looking ahead and not behind.…
Davis Balestracci
For all the talk about the power of control charts, I can empathize when audiences taking mandated courses on quality tools are left puzzled. When I look at training materials or books, their tendency is to bog down heavily in the mechanics of construction without offering a clue about…
