Category Archives: Quality tools

Special Cause Signal Isn’t Proof A Special Cause Exists

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 … Continue reading

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5s at NASA

NASA did some amazing things culminating with landing on Moon. Much of what they did was doing many small things very well. They used 5s, checklists, gemba thinking, usability, simplicity, testing out on a small scale and much more. Here … Continue reading

Posted in Deming, Lean thinking, Quality tools, Systems thinking | Tagged , , , , , | 1 Comment

My New Book: Management Matters

I have a new book in progress: Management Matters. It is now available in “pre-release format” via leanpub. The idea I am experimenting with (supported by leanpub) is pre-publishing the book online. The ebook is available for purchase now, and … Continue reading

Posted in Books, curiouscat.com, Deming, Lean thinking, Management, Process improvement, Psychology, Quality tools, quote, Respect, Systems thinking | Tagged , , , , , , , , , , | 3 Comments

Value Stream Mapping for Fun and Profit

Guest post by Evan Durant, author of the Kaizen Notebook blog [The broken link was removed]. I tend to get a little preachy about the importance of value stream maps, but they really can be useful tools not only to … Continue reading

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Richard Feynman Explains the PDSA Cycle

Ok, really Richard Feynman Explains the scientific method. But his thoughts make the similarity between the PDSA cycle and the scientific method obvious. 1) Plan, hypothesis. You make a guess about a theory (in using the PDSA cycle this step … Continue reading

Posted in Process improvement, Quality tools, Science | Tagged , , , , , , | 3 Comments

Management Blog Posts From November 2006

I have selected a few great posts from the Curious Cat Management Blog back in November 2006. What Could we do Better? – There are many important ideas to improve management. This is one of the most important tips to … Continue reading

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Keys to the Effective Use of the PDSA Improvement Cycle

The PDSA improvement cycle was created by Walter Shewhart where Dr. Deming learned about it. An improvement process is now part of many management improvement methods (A3 for lean manufacturing, DMAIC for six sigma and many other modifications). They are … Continue reading

Posted in Data, Deming, Management, Popular, Process improvement, Quality tools, quote, Systems thinking | Tagged , , , , , , , , , , | 15 Comments

Agile Story Point Estimation

In agile software development tasks are documented as user stories. Then the level of effort for those stores can be estimated by assigning each story points. The velocity that can be produced in a period (called a sprint, for us … Continue reading

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Eliminate the Waste of Waiting in Line with Queuing Theory

One thing that frustrates me is how managers fail to adopt proven strategies for decades. One very obvious example is using queuing theory to setup lines. Yes it may be even better to adopt strategies to eliminate as much waiting … Continue reading

Posted in Customer focus, Data, Management, Process improvement, Quality tools, Statistics, Systems thinking | Tagged , , , , , , | 2 Comments

Dr. Deming in 1980 on Product Quality in Japan and the USA

I posted an interesting document to the Curious Cat Management Library: it includes Dr. Deming’s comments as part of a discussion organized by the Government Accounting Office in 1980 on Quality in Japan and the United States. The document provides … Continue reading

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