All Features
R. Eric Reidenbach Ph.D.
“Our corporate mission is to deliver the ‘Best Value in Energy and Related Services,’” according to a large Midwestern electric and gas utility company. This is a mission statement, which after a minor modification (just change the industry), could be posted on any boardroom wall and inserted into…
Georgia Institute of Technology
The cross-functional team at Piedmont Newnan was made up of employees that deal with the process daily. For this process improvement project, they focused on case carts, which are used for pulling together all supplies needed for surgical procedures.
Pam Murphy, a…
James Wells
How many times has this happened to you? You’re leading a Six Sigma project on a transactional process of some kind, something not directly tied to manufacturing or measurement of product quality. You get to the measure phase of your Six Sigma project and struggle to figure out how to satisfy the…
Knowledge at Wharton
Toyota’s legendary lean processes didn’t come out of nowhere. They were forged by the fire of urgency in post-World War II Japan when resources were scarce. Toyota innovated—and continued to innovate. Today, the Toyota Production System is the most respected manufacturing and inventory control…
R. Eric Reidenbach Ph.D.
One of my clients, a wireless business-to-business (B2B) telecom company, was experiencing a significant problem in their call center. They were absolutely inundated with calls—most of them problems. They were spending a significant amount of money trying to manage the call center—adding new call…
Knowledge at Wharton
In 2008, the University of North Carolina (UNC) Health Care System faced a challenge: Length of stay per patient at this major nonprofit health system and academic medical center was longer than it needed to be. If administrators could figure out how to cut the length of stay by an average of just…
Steve Moore
The purpose of this article is to give you an appreciation of the Quincunx as an educational tool for teaching some of the theory behind the tools and concepts of so-called modern quality management. The Quincunx is often seen in the possession of organizations practicing in-house education of…
Steven Wachs
The purpose of using control charts is to regularly monitor a process so that significant process changes may be detected. These process changes may be a shift in the process average (X-bar) or a change in the amount of variation in the process. The variation observed when the process is operating…
Knowledge at Wharton
The financial services sector has been a laggard in adopting lean tools and practices, perhaps because of their manufacturing origins. But those attitudes are slowly changing. As more banks discover the benefits of lean operations—such as lower costs, fewer errors, faster cycle times and far…
Aditya Bhalla
The Six Sigma journey of many organizations has morphed into “lean Six Sigma” during the past couple of years.
While the fusion of two methodologies has yielded benefits, it has also spawned a number of urban legends on the context and relevance of combining the two methodologies.
What…
Tim Leary
Story update 11/23/2010: A paragraph was added to the end of this case study to reflect the current state of the company's quality initiatives.
Acme Technology Services (not their real name) is a privately-held provider of technology-enabled business solutions. Acme’s retail software division…
Jay Arthur—The KnowWare Man
After a meal at a local Chinese restaurant, my fortune cookie said, “If you keep too busy learning the tricks of the trade, you may never learn the trade.” When I think about how this applies to Six Sigma, it seems obvious that far too much Six Sigma training is dedicated to the tricks of the…
WILLIAM SCHERKENBACH
I’ve spent most of the past two years living in China where I have learned much on how enterprise is managed over there. Many people have said that this century belongs to Asia. That may be, but they have a lot to learn and change before that happens. They cannot depend on cheap rote labor to…
Knowledge at Wharton
“Lean” has come to mean an integrated, end-to-end process viewpoint that combines the concepts of waste elimination, just-in-time inventory management, built-in quality, and worker involvement supported by a cultural focus on problem solving. Can such practical principles be applied to innovation…
Minitab LLC
Kaj Ahlmann (right), owner of the Six Sigma Ranch, Vineyards, and Winery, and vineyard manager, David Weiss, create great wines by applying old-world techniques and the rigor of proven quality improvement.
Some people take it easy when they retire. But Kaj…
John David Kendrick
A common error of many Six Sigma and operations research professionals is not properly selecting the correct subgroup sampling technique when constructing a statistical process control (SPC) chart. Incorrect subgroup sampling technique selection has become worse in the modern computing age,…
Tripp Babbitt
I have identified myself as a “reformed” lean Six Sigma Master Black Belt. Some will see this as an affront to lean and Six Sigma. I want to assure you that there are many things to like about lean and Six Sigma. The issue at hand is that a better solution is available that can help organizations…
Tom Gaskell
If you are buying two or three complex assemblies per month from a contract manufacturer, it would be reasonable to check every one carefully; there’s a lot that could go wrong. However, if you are buying 100,000 simple subassemblies per month it makes no sense for you to 100-percent check them…
Forrest Breyfogle—New Paradigms
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ix Sigma and lean provide tools for process improvement. Most of today’s business improvement programs can trace their roots back to a lean or a Six Sigma heritage. In general, these process improvement methodologies are considered advances from total quality management (TQM) and other methods…
Forrest Breyfogle—New Paradigms
The financials of an enterprise are a result of the integration and interaction of its processes, not of individual procedures in isolation. Using a whole-system perspective, one realizes that the output of a system is a function of its weakest link or constraint. If you're not careful, you can be…
Jay Arthur—The KnowWare Man
At the 2009 National Association for Healthcare Quality conference, I gave a speech on lean Six Sigma simplified. At the end of the session, one of the attendees asked, "If Six Sigma is so easy, why isn’t everyone doing it?" My answer: Because we’ve made it too complicated, expensive, and hard…
In 2005, according to a BBC News report at the time, operating rooms all over the United Kingdom were thrown into chaos and operations canceled due to broken, missing, or dirty surgical instruments. The Royal College of Surgeons called for a national audit of decontamination units, following a…
Jay Arthur—The KnowWare Man
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n his inauguration speech, President Obama called for improving health care quality and reducing costs. In 2008, U.S. health care costs exceeded $2.4 trillion and are expected to climb to $3.1 trillion by 2012, according to the National Coalition on Health Care.
Of these costs, 25 percent…
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n emergency response organization differs substantially from our usual public health organization for day-to-day business. However, as the spring 2009 H1N1 (also referred to as swine flu) outbreak highlighted, usual public health processes are fundamental for effectively responding to a…
Raissa Carey
To Chris Collins, lean and Six Sigma, just like government and business management, go hand in hand.
In Erie County, where he fiercely advocates that a lean government can and will save taxpayers millions of dollars, Chris Collins became the first county executive in the nation to implement lean…