All Features
Steven Ouellette
We are more than halfway through the countdown of our exploration of the kooky, and expensive, mistakes people make in implementing Six Sigma, and I want to talk about something that’s so fundamental people rarely see it—Stupid Six Sigma Trick #4: Overusing DMAIC.
DMAIC stands for define the…
A certain company has a complaint department that answers calls for three unique products. Because of failure rates inherent to each product type, some products have a higher expected complaint rate than others. Calls are tallied each hour and categorized by product type…
Since “Sick Sigma” was published in April 2006, the public has become much more aware of Six Sigma’s failings. There is little risk today of being burnt at the stake for pointing out Six Sigma’s many faults. Last fall, even Dilbert discredited Six Sigma, pointing out that Six Sigma…
Praveen Gupta
A few years ago, lean thinking came to light. It sounded similar to what I had learned about the “pull” system. I wondered why we renamed cycle time reduction, or just in time (JIT), “lean.” Cycle time reduction was easy to understand and related to responsiveness to customer demands and waste…
An introduction to Six Sigma for direct marketing Six Sigma methods, used correctly and thoroughly for continuous improvement of direct marketing sales, can produce remarkable results:1. At a university work-force education program, total registrations doubled in three years through…
Steven Ouellette
Today marks a milestone in our countdown of the Top Ten Stupid Six Sigma Tricks. A subjective and unimportant milestone to be sure, but a milestone nonetheless—we have now reached the halfway point. Forget the New Year, this is cause for celebration.
To commemorate this trivial event, let us turn…
Praveen Gupta
Six Sigma was officially launched January 1, 1987, at Motorola, and it took more than nine months to make Six Sigma real. Twenty years later, Six Sigma has grown from a good baby methodology into a mature system that affects thousands of corporations and millions of people and that saves billions…
Steven Ouellette
In this installment of my arbitrary and capricious list of the Top Ten Stupid Six Sigma Tricks (SSST), let’s talk about an error that is perhaps less frequently made now than it has been, but is still common. I call this error SSST No.6, constraining your improvement activities to…
Praveen Gupta
Most quality management systems don’t produce the desired results because of the way companies use it to affect their bottom line.
A QMS is often considered to be a burden, and there’s apathy in all levels of the organization toward quality. ISO 9001 systems, for example, are considered to be paper…
Steven Ouellette
The Stupid Six Sigma Tricks countdown continues this month with an increasingly common error: “Inadequate Infrastructure.” By infrastructure, I mean those systems and processes that need to be in place in order to support the objectives of Six Sigma. Regardless of how you define Six…
Praveen Gupta
Globalization has led to worldwide economic growth, shared resources and shared business functions. Some countries dominate manufacturing, others software or the service industry. The quality of manufacturing operations has been improving for decades, but the quality of service appears to be…
Steven Ouellette
So far, we’ve discussed Stupid Six Sigma Tricks #10: Conflating systems, methods and tools and #9: Confusing breakthrough with continuous improvement. This month, I’ll spend some time on a more subtle, and no less costly mistake that, in its extreme form, we’ll call Stupid Six Sigma Trick #8:…
Thomas R. Cutler
In a repetitive manufacturing environment, Six Sigma’s quantification is much easier than in the engineer-to-order (ETO) manufacturing environment, where no two products are identical.
Six Sigma is a program that affects the entire company. What have been missing for ETO manufacturers are the…
Praveen Gupta
Lean and Six Sigma have been implemented for many years and organizations have benefited from both methodologies. With Six Sigma, corporations have reaped benefits in the billions of dollars. With lean, organizations have reported up to 90-percent reductions in space utilization and cycle-times.…
In the last InsideSixSigma issue, we published a brain teaser by Steve Wise, who proposed a scenario and asked you to pick a chart that best described the situation in a manufacturing operation. Here, Wise gives the correct response and comments on the wrong ones. Correct response The…
Steven Ouellette
This month let’s examine another common mistake that some people (not my loyal, intelligent, heretical and, let’s face it, downright attractive readers) make when they use Six Sigma. I expect to seriously annoy some practitioners when I say that Six Sigma isn’t a method of continuous…
Steve Wise
In a certain operation, a part is subject to a high-temperature curing cycle. The ideal curing scan is illustrated in the chart below. The oven chamber begins at room temperature, ramps up to a conditioning temperature of about 80 degrees, dwells for four minutes, ramps up again to the curing…
Praveen Gupta
Editor’s note: This is an attempt to use DMAIC methodology to resolve conflicts, in concert with the approach presented in an article titled “Feds may unleash Six Sigma on terrorism” by Del Jones in USA Today, October 30, 2002. By no means does either the author or Quality Digest consider the…
Tony Coray
One of the latest trends in the ongoing evolution of Six Sigma is its rising popularity among college students and its appearance in universities’ curricula. These courses are exposing students to the power of data-driven quality improvement and, in many cases, giving them firsthand…
Steven Ouellette
As I said in my premier Heretic column, “Dogma and Definition,” I’m interested in examining our assumptions and premises about Six Sigma so we can discard the dross and refine the potential benefits in implementing it.To that end, I have decided to co-opt an omnipresent element of pop…
Praveen Gupta
Considering the leadership at Motorola and General Electric provided by stalwarts such as Bob Galvin and Jack Welch, respectively, I believe that two leaders with totally different styles can get similar results using the same tools. When I worked at Motorola in Bob Galvin’s time, there was a rule…
Quality Transformation With David Schwinn
Once upon a time, in a real, live U.S. corporation, top management decided that Six Sigma was a good idea. They trained up many Black Belts to lead projects to produce documented savings as defined by the existing accounting system. To encourage people to be successful, the Black Belts—…
Praveen Gupta
At a recent committee meeting of a professional association, the speaker talked about print media and the Internet. Print media are struggling because the Internet can more easily disseminate information. The Internet is changing the world, and print media are those most directly affected by this…
Steven Ouellette
I
n Dirk Dusharme’s First Word in the April 2006 issue of Quality Digest, he sneaks into the back of the “Church of the Six Sigma” and cannily reports the goings on. In this column, I will burst in through the doors dressed in motley and try to pry the scales off of your eyes, chanting, “DMAIC…
Praveen Gupta
Six Sigma has gained a reputation as a data-driven statistical methodology for process improvement. If the statistical methodology by itself were responsible for Six Sigma’s success, then there would be nothing new in Six Sigma. Methodologies based on data-driven statistics have been known for many…
