Category Archives: Six sigma

George Box

Posted on March 28, 2013 by John Hunter

I would most likely not exist if it were not for George Box. My father took a course from George while my father was a student at Princeton. George agreed to start the Statistics Department at the University of Wisconsin – Madison, and my father followed him to Madison, to be the first PhD student. Dad graduated, and the next year was a professor there, where he and George remained for the rest of their careers. George died today, he … Continue reading →

Posted in Data, Deming, Design of Experiments, Management, Manufacturing, Process improvement, Quality tools, quote, Respect, Six sigma, Statistics, Systems thinking, UK | Tagged , , , , , , , , , , , , , , | 15 Comments

Software Process and Measurement Podcast With John Hunter

Posted on February 25, 2013 by John Hunter

In my podcast with Tom Cagley, Software Process and Measurement Cast: John Hunter on Management Matters, as you might expect there was a bit of a focus on software development and agile software development as related to the ideas I expressed in Management Matters: Building Enterprise Capability. Deming: management system, continual improvement, respect for people (the 3rd point I said I would mention, but didn’t) Why do so many management improvement efforts fail? The proxy nature of data Building Adoption … Continue reading →

Posted in Books, Customer focus, Deming, Six sigma | Tagged , , , , , , , , , , | 2 Comments

Special Cause Signal Isn’t Proof A Special Cause Exists

Posted on October 3, 2012 by John Hunter

One of my pet peeves is when people say that a point outside the control limits is a special cause. It is not. It is an indication that it likely a special cause exists, and that special cause thinking is the correct strategy to use to seek improvement. But that doesn’t mean there definitely was a special cause – it could be a false signal. This post relies on an understand of control charts and common and special causes (review … Continue reading →

Posted in Data, Deming, Management, Manufacturing, Process improvement, Quality tools, quote, Six sigma, Statistics, Systems thinking | Tagged , , , , , , , , ,

Management Improvement Blog Carnival #179

Posted on October 1, 2012 by John Hunter

The Curious Cat Management Blog Carnival has been published since 2006. The carnival links to great management blog posts; it is published twice a month. I hope you find these post interesting and find some new blogs to start reading. Follow me online: Google+, Twitter and elsewhere. Lean Versus Historical TPS by Art Smalley – “identify what are your impediments to improvement and work on those. In particular as what are barriers to higher equipment uptime, higher process capability, safer … Continue reading →

Posted in Carnival, Six sigma | Tagged

Introductory Videos on Using Design of Experiments to Improve Results

Posted on June 18, 2012 by John Hunter

The video shows Stu Hunter discussing design of experiments in 1966. It might be a bit slow going at first but the full set of videos really does give you a quick overview of the many important aspects of design of experiments including factorial designed experiments, fractional factorial design, blocking and response surface design. It really is quite good, if you find the start too slow for you skip down to the second video and watch it. My guess is, … Continue reading →

Posted in Data, Design of Experiments, Science, Six sigma, Statistics | Tagged , , , , , , , , , | 6 Comments

Why Use Lean if So Many Fail To Do So Effectively

Posted on February 15, 2012 by John Hunter

If less than 1% of companies are successful with Lean, why are we doing it? Lots of us are not. I would say the efforts I see “fail” are because they don’t do it. They have something they call TQM, six sigma, lean management or whatever and try out 10-30% of it in some half-measures, with big doses of Dilbert’s pointy haired boss methods and then don’t get great results. Wow. The biggest complaint (with some merit) I see is … Continue reading →

Posted in Deming, Lean thinking, Management, Process improvement, Six sigma, Systems thinking | Tagged , , , , , , , , | 11 Comments

2011 Management Blog Roundup: Stats Made Easy

Posted on January 8, 2012 by John Hunter

The 4th Annual Management blog roundup is coming to a close soon. This is my 3rd and final review post looking back at 2001, the previous two posts looked at: Gemba Panta Rei and the Lean Six Sigma Blog. I have special affinity for the use of statistics to understand and improve. I imaging it is both genetic and psychological. My father was a statistician and I have found memories of applying statistical thinking to understand a result or system. … Continue reading →

Posted in Carnival, Data, Six sigma, Statistics | Tagged , , ,

2011 Management Blog Roundup: Lean Six Sigma Blog

Posted on December 29, 2011 by John Hunter

For my contribution to the 4th annual management blog roundup I am taking a look at 3 management blogs. In this post I look back at the year that was at the Lean Six Sigma blog. We are lucky to have so many great management blogs to read all year. They provide inspiration and great advice to managers. Though, one of my frustrations is how few good six sigma resources there are online. In this area we are unlucky. The … Continue reading →

Posted in Carnival, Six sigma | Tagged , | 2 Comments

One factor at a time (OFAT) Versus Factorial Designs

Posted on May 25, 2011 by John Hunter

Guest post by Bradley Jones Almost a hundred years ago R. A. Fisher‘s boss published an article espousing OFAT (one factor at a time). Fisher responded with an article of his own laying out his justification for factorial design. I admire the courage it took to contradict his boss in print! Fisher’s argument was mainly about efficiency – that you could learn as much about many factors as you learned about one in the same number of trials. Saving money … Continue reading →

Posted in Data, Design of Experiments, Popular, Quality tools, Science, Six sigma, Statistics | Tagged , , , , , , | 6 Comments

Factorial Designed Experiment Aim

Posted on April 25, 2011 by John Hunter

Multivariate experiments are a very powerful management tool to learn and improve performance. Experiments in general, and designed factorial experiments in particular, are dramatically underused by managers. A question on LinkedIn asks? When doing a DOE we select factors with levels to induce purposely changes in the response variable. Do we want the response variable to move within the specs of the customers? Or it doesn’t matter since we are learning about the process? The aim needs to consider what … Continue reading →

Posted in Design of Experiments, Management, Manufacturing, Process improvement, Quality tools, quote, Science, Six sigma, Statistics | Tagged , , , , , , , , , | 4 Comments

Problems with Management and Business Books

Posted on April 18, 2011 by John Hunter

We really need to change how we improve the practice of management. Far too often management strategies are just the latest fad from some new book that successfully marketed an idea. The marketing effectiveness of a book, or consultant, has very limited correlation to their ability to improve management, in my experience. It is often true that they make very good keynote speakers, however. So if you want an entertaining keynote speaker looking at the authors of the best selling … Continue reading →

Posted in Books, Deming, Lean thinking, Management, Six sigma | Tagged , , , , , , , | 12 Comments

Good Process Improvement Practices

Posted on November 8, 2010 by John Hunter

Good process improvement practices include: standardized improvement process (pdsa, or whatever) Going to the gemba – improvement is done where the work is done. You must go to the where the action is. Sitting in meeting rooms, or offices, reading reports and making decisions is not the way to improve effectively. evidence based decision making, data guides decision making rather than HiPPO broad participation (those working on the process should be the ones working on improving it and everyone in … Continue reading →

Posted in Deming, Lean thinking, Management, Process improvement, quote, Respect, Six sigma, Systems thinking | Tagged , , , , , , , , , , , , | 8 Comments

Management Improvement Internal Experts

Posted on November 3, 2010 by John Hunter

Having a group of internal experts in Deming, lean thinking, six sigma, etc. can be an good way to help the organization transform but they must 1) practice respect for people and 2) focus on building organizational capacity. Having, for example a few experts that are very focused on lean thinking and can be tapped by others in the organization I think can be very useful. That group might well also serve as “change agents” which can make some people … Continue reading →

Posted in Deming, Lean thinking, Management, Process improvement, Six sigma | Tagged , , , , , , ,

Six Sigma Interview with Jack Welch

Posted on October 4, 2010 by John Hunter

The short video includes some interesting points by Jack Welch on six sigma. GE was a huge company and did plenty of things that could be criticized. But often those criticizing take it much to far and disregard the sensible things GE understood and was doing well. Quotes by Jack Welch: “variation is evil” “Will six sigma companies get more valuation in the marketplace? Not unless they produce results. You can’t put up a slogan that says we are a … Continue reading →

Posted in Investing, Management, Six sigma, webcast | Tagged , , , ,

Statistical Engineering Links Statistical Thinking, Methods and Tools

Posted on June 3, 2010 by John Hunter

In Closing the Gap Roger W. Hoerl and Ronald D. Snee lay out a sensible case for focusing on statistical engineering. We’re not suggesting that society no longer needs research in new statistical techniques for improvement; it does. The balance needed at this time, however, is perhaps 80% for statistics as an engineering discipline and 20% for statistics as a pure science. True, though I would put the balance more like 95% engineering, 5% science. There is a good discussion … Continue reading →

Posted in Science, Six sigma, Statistics | Tagged , , , , , , , | 1 Comment

Soren Bisgaard

Posted on December 22, 2009 by John Hunter

Soren Bisgaard died earlier this month of cancer. Soren was a student of my father’s who shared the commitment to making a difference in people’s lives by using applied statistics properly. I know this seem odd to many (I tried to describe this idea previously, also read his acceptance of the 2002 William G. Hunter award). Soren served as the director of the director of the Center for Quality and Productivity Improvement at the University of Wisconsin-Madison (founded by William … Continue reading →

Posted in Psychology, Six sigma, Statistics | Tagged , , , , , , | 4 Comments