The Six Sigma Way of Thinking

6 August 2013 – written by Gordon Valentin, SHEQ Media


  Interview with Dr Mikel Harry

Dr Mikel Harry

Dr. Harry has been widely recognized in many notable publications as the co-creator of Six Sigma and the world’s leading authority within this field. Through this article, he shares some of his key insights with SHEQ Media. To many organizations, Six Sigma is just another means to improve quality that’s often put under the umbrella of continuous improvement.

From this view point, Six Sigma can be described as a highly disciplined, data-driven approach for eliminating defects. However, the reality is that Six Sigma is actually a business improvement process that allows companies to drastically benefit their bottom line while better serving their customers. This mission is accomplished by designing and monitoring everyday business activities in ways that minimize waste and resources while concurrently increasing customer satisfaction and stakeholder value.

While most quality control programs focus on detecting, analyzing and correcting defects, Six Sigma takes a broader view of how to create beneficial improvements in product and service quality. Simply stated, Six Sigma is about making breakthrough improvements in the core processes of a business. To this aim, Six Sigma relies on time-proven methods to re-create the process so that defects and errors never arise in the first place. As one might surmise, this means preventing defects, not detecting and fixing them. In the world of Six Sigma, data is sacred; culture is methodology; decisions are numbers; and customer satisfaction is a performance metric. Six Sigma is a high precision way of confidently grasping the control function of a business.

In other words, Six Sigma is about discovering the right knobs to turn in the core processes of an enterprise. Once these knobs are known and optimized, the needle of business is favorably moved.  Expressed differently, Six Sigma is a reliable way to connect what happens at the bottom of the organization to the top (and vice versa), where all such connections can be directly tied to the fundamental economics of the organization. Thus, Six Sigma is concerned with the Quality of Business, not the Business of Quality.  This is what separates Six Sigma from more traditional quality initiatives, like Total Quality Management. So what is a Sigma and why Six?  Well, a Sigma is a measure of the goodness in something – the more Sigma’s the better.

It’s interesting to note that an average company’s products and services typically benchmarks in the range of 3.5 to 4.0 Sigma.  Best-in-Class companies reach to about 4.5 Sigma while World-Class companies strive for 5.0 to 6.0 Sigma. For example, airline baggage handling is about 4.0 Sigma, but the flight fatality rate is slightly more than 6.0 Sigma.  This means that the next time you get on a commercial flight to go somewhere, you are about 1,800 times more likely to get there than your bags. A huge difference indeed.

Being an average company (4.0 Sigma) also means you have to frequently “take your eye off the ball” to fix all the things gone wrong. However, a Six Sigma company always has their eye on the ball simply because there are so few things to fix.  Consequently, a Six Sigma organization has far more “quality time” for running the business in an effective and efficient manner.  Unlike a Four Sigma organization, a Six Sigma company has much more time to create additional value for its customers and shareholders.

Obviously, if one aspires to Six Sigma, the need for change is a certainty. We must remember that change is not the occasional clash of symbols, it’s the melody. This means that the entire company will need to continually change its DNA to effectually evolve how it operates. It takes a new way of thinking to make a 1,800 times improvement in the quality of something. As you might reason, common-sense thinking is not likely to produce a 1,800 times improvement in something. This level of improvement requires uncommon sense, or what many would call “extraordinary sense.”

Six Sigma provides an extraordinary way of thinking and set of supporting tools that allow people to reach out and achieve extraordinary things. Think about it. Very few things in this world were ever achieved using common sense.  If so, they would have been realized long before their actual creation. Thus, Six Sigma thinking is far superior to Four Sigma thinking.

To better understand the true import of Six Sigma, let’s consider an example. Suppose a process consists of 500 activities and that each activity is 4.0 Sigma. Given these facts, the likelihood of successfully executing all 500 activities is about 4.4%. However, if each activity was 6.0 Sigma, the likelihood of successfully executing all 500 activities would be about 99.9%. Surely, nothing more need be said – the data speaks for itself. So what’s next in the world of Six Sigma?

Well, Dr harry explains that classical Six Sigma can only be deployed into about 2-5 percent of an organization’s workforce. But what about the other 95%?  Is there not some way they too can meaningfully participate in a Six Sigma initiative?  Well, simply watering down the classical form of Six Sigma has not worked out very well. So, to address this issue, Dr. Harry broke the classical form of Six Sigma down into “Big Ideas” that he calls the “10 Supreme Laws of Breakthrough.”

The 10 Supreme Laws of Breakthrough were discerned by Dr. Harry after a couple years of closely examining a wide array of Six Sigma related case studies, training content, correspondence, interviews and so on.  The goal was to identify the underlying cognitive roadmap of Six Sigma and then reduce it to a series of fill-in-the-blank templates.  In this way, virtually anyone (including work teams) can practice Six Sigma, but done so without the math.  In this sense, The Great Discovery is the Six Sigma Way of Thinking.

For more information about The Great Discovery, please visit:

For Online Lean Six Sigma Black Belt Training and Certification, please visit:

About Mikel Harry

Dr. Harry has been widely recognized in many of today's notable publications as the Co-Creator of Six Sigma and the world's leading authority within this field. His book entitled Six Sigma: The Breakthrough Management Strategy Revolutionizing the World’s Top Corporations has been on the best seller list of the Wall Street Journal, New York Times, Business Week, and He has been a consultant to many of the world’s top senior executives, such as Jack Welch, former CEO and Chairman of General Electric Corporation. Dr. Harry has also been a featured guest on popular television programs, such as the premier NBC show "Power Lunch." He is often quoted in newspapers like USA Today and interviewed by the media, such as The Economic Times. In addition, Dr. Harry has received many distinguished awards in recognition of his contributions to industry and society. At the present time, Dr. Harry is Chairman of the Six Sigma Management Institute and CEO of The Great Discovery, LLC.
This entry was posted in Six Sigma (General) and tagged , , , , , , , , , , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s