Category Archives: Quality tools

Checklists in Software Development

Posted on April 7, 2009 by John Hunter

Verify your work with checklists WHO has recently shown that surgical deaths can be reduced by a third when hospitals follow their Surgical Safety Checklist. The checklist is very low tech. It includes questions like whether the patient has been properly identified, whether the proper tools are available, and whether everyone knows what kind of procedure is about to be done. If a checklist so simple can save so many lives, I thought the technique could surely help us do … Continue reading →

Posted in Deming, IT, Management, Process improvement, Quality tools, Software Development | Tagged , , , | 3 Comments

Combinatorial Testing for Software

Posted on March 26, 2009 by John Hunter

Combinatorial testing of software is very similar to the design of experiments work my father was involved in, and which I have a special interest in. Combinatorial testing looks at binary interaction effects (success or failure), since it is seeking to find bugs in software, while design of experiments captures the magnitude of interaction effects on performance. In the last several years my brother, Justin Hunter, has been working on using combinatorial testing to improve software development practices. He visited … Continue reading →

Posted in Design of Experiments, Process improvement, Quality tools, Software Development | Tagged , , , , , | 9 Comments

How to Create a Control Chart for Seasonal or Trending Data

Posted on March 25, 2009 by John Hunter

Lynda Finn, President of Statistical Insight, has written an article on how to create a control chart for seasonal or trending data (where there is an underlying structural variation in the data). Essentially you need to account for the structural variation to create the control limits for the control chart. She also provides a Minitab project file. Both are available for download from the Curious Cat Management Improvement Library. Related: Control Charts in Health Care – Common Cause Variation – … Continue reading →

Posted in Data, Deming, Management, Process improvement, Quality tools, Science, Statistics | Tagged , , , , , , | 3 Comments

ER Checklist

Posted on March 13, 2009 by John Hunter

The popular ER TV show highlighted the importance of using checklists in surgery yesterday. Such powerful quality tools, like the checklist, are just waiting to be used. But far too many fail to use these simple improvement tools. And in health care those failures are potentially critical. Related: Checklists Save Lives – The Power of a Checklist – management improvement dictionary – Articles on Improving the Health Care System

Posted in Health care, Quality tools, webcast | Tagged , , , , | 1 Comment

Jeff Bezos and Root Cause Analysis

Posted on January 28, 2009 by John Hunter

Using quality tools really works. Lots of people don’t use them. Improving is often not any more difficult than just applying tools that have been used for decades. Continue reading →

Posted in Deming, Management, Quality tools, Respect | Tagged , , , | 2 Comments

Checklists Save Lives

Posted on January 17, 2009 by John Hunter

Checklists are a simple quality tool that have been used widely for decades. Pilots use them, without fail, to save lives. Some surgeons have been using them and the evidence is mounting that checklists can save many more lives if more in health care use them. Studies Show Surgeons Could Save Lives, $20B by Using Checklists Eight hospitals reduced the number of deaths from surgery by more than 40% by using a checklist that helps doctors and nurses avoid errors, … Continue reading →

Posted in Deming, Health care, Management, Process improvement, Psychology, Quality tools, Systems thinking | Tagged , , , , , , , | 3 Comments

Information Technology and Business Process Support

Posted on December 3, 2008 by John Hunter

I moved from management improvement work into information technology work (where I continue to practice management improvement). Many IT practices follow quality management guidelines well (agile software development for one). I have found it far easier to design and provide software solutions than convince people to change their processes directly. I found it funny that as I delivered new IT solutions, in which was embedded a redesign of the process, those changes were often accepted without any significant debate. But … Continue reading →

Posted in IT, Management, Process improvement, Quality tools, quote, Software Development, Systems thinking | Tagged , , , , , , , | 6 Comments

Six Sigma v. Common Sense

Posted on October 20, 2008 by John Hunter

Response to LinkedIn question [the broken link was removed]: “Whether Six Sigma as a quality tool really delivers the benefits ? How does it makes difference from a common sense approach ? (Where the process wastes and the required solution is known / can be easily identified just by applying common sense)” Six sigma (or another management improvement method) can help in several ways. First, lots of things that are sensible are not done. A method to assure that more … Continue reading →

Posted in Management, Quality tools, quote, Six sigma | Tagged , , , , , , | 2 Comments

Webcast on 2-Bin Systems

Posted on March 11, 2008 by John Hunter

Illustration of how 2-Bin Systems work, by Bill Hanover. Related: Overall Equipment Effectiveness (OEE) video by Bill Hanover – Messiness is Bad – Drum-Buffer-Rope Example – lean manufacturing resources

Posted in Lean thinking, Management, Quality tools, webcast | Tagged , , ,

Lean Six Sigma Case Studies

Posted on February 27, 2008 by John Hunter

ValuMetrix Services provides some really nice lean six sigma case studies. Simple short but still with enough detail to actually provide some sense of what is going on. While on the topic of online case studies let me plug the Curious Cat management improvement library. I think it is one of the more valuable resources for management improvement offered on the Curious Cat sites. Library shelves: health care articles, lean manufacturing articles, six sigma articles, newly added articles… via: Daily … Continue reading →

Posted in curiouscat.com, Health care, Lean thinking, Management, Quality tools, Toyota Production System (TPS) | Tagged , , , | 1 Comment

Stratification and Systemic Thinking

Posted on January 6, 2008 by John Hunter

I am reading a fascinating book by Jessica Snyder Sachs: Good Germs, Bad Germs. From page 108: At New York Hospital, Eichenwald and infectious disease specialist Henry Shinefield conceived and developed a controversial program that entailed deliberately inoculating a newborn’s nostrils and umbilical stump with a comparatively harmless strain of staph before 80/81 could move in. Shinefield had found the protective strain – dubbed 502A – in the nostrils of a New York Hospital baby nurse. Like a benign Typhoid … Continue reading →

Posted in Creativity, Data, Deming, Health care, Innovation, Management, Quality tools, Science, Statistics, Systems thinking | Tagged , , , , , , | 2 Comments

It Just Works

Posted on January 2, 2008 by John Hunter

Does Your Product Or Service “Just Work”? By Jim Kukral That’s it. It’s the highest compliment you can get. “It just works” is a very powerful phrase in this day and age There is truth to that statement. I think largely due to how bad so many products are – that they don’t actually work. The Kano model of customer satisfaction is an excellent way to view customer expectations. The Kano model states that you have expected quality – it … Continue reading →

Posted in Customer focus, Management, Quality tools | 2 Comments

Great Visual Instruction Example

Posted on December 14, 2007 by John Hunter

This does a great job of explaining what you need to know clearly. While this presentation for Azithromycin doesn’t prevent a mistake it sure makes it much more likely that the process can be completed successfully. We need more effort in creating such clear instructions. Visual clarity is more important than lots of words. Applying that concept is not as easy as it sounds but it is a very important idea for instructions to end use and instructions for processes … Continue reading →

Posted in Health care, Management, Psychology, Quality tools | Tagged , , , ,

The Power of a Checklist

Posted on December 7, 2007 by John Hunter

Great article on The Checklist – If something so simple can transform intensive care, what else can it do? by Atul Gawande A decade ago, Israeli scientists published a study in which engineers observed patient care in I.C.U.s for twenty-four-hour stretches. They found that the average patient required a hundred and seventy-eight individual actions per day, ranging from administering a drug to suctioning the lungs, and every one of them posed risks. Remarkably, the nurses and doctors were observed to … Continue reading →

Posted in Health care, Lean thinking, Management, Process improvement, Psychology, Quality tools | Tagged , , , , , | 4 Comments

Design of Experiments in Operational Testing

Posted on November 3, 2007 by John Hunter

Edwards looks toward future of testing We are fielding a Design of Experiments concept to ensure we conduct the right amount of testing — not too much or too little, but just right. We will field this approach in phases as we must train our people and put the right tools in place. However, it is already showing great promise. In a recent Benefield Anechoic Facility test, the 412th Electronic Warfare Group used Design of Experiments methodology to cut a … Continue reading →

Posted in Design of Experiments, Management, Public Sector, Quality tools

Constant Change and Growth

Posted on August 29, 2007 by John Hunter

The Toyota Secret: Constant Change And Growth by Norman Bodek the chairman of Toyota Motor Corporation. He said, “Failure to change is a vice! I want everyone at Toyota to change and at least do not be an obstacle for someone else who wants to change.” … Every day the manager should look around the company, take videos and still pictures, and challenge people to grow, to eliminate non-value adding wastes, to use their brains to identify and solve problems, … Continue reading →

Posted in Management, Psychology, Quality tools, Toyota Production System (TPS) | 2 Comments