These feature articles are published monthly by Quality Digest. They are collected under the nom de plume of The Six Sigma Heretic, which tells you something about how we approach Six Sigma. They are written by ROI President Steven Ouellette, and have a unique blend of humor and statistical depth that makes him one of Quality Digest's most popular authors. Subscribe to our RSS Feed to be alerted about each month's article!

Project Selection for DMAIC

Monday, 20 April 2009 23:50 Written by Steven Ouellette

Guidelines to help your project succeed

One of the most frequent questions I get from Black Belts and Green Belts I train is about the characteristics of a good Six Sigma project, particularly a first project. Define, measure, analyze, improve, control (DMAIC) is a procedure that is useful for certain types of projects and terrible for others. What makes a good DMAIC project?

The Truth About Control Charts

Thursday, 12 March 2009 23:40 Written by Steven Ouellette

Don't believe what you see; at least at first.

Many people go through a point in their lives where they question the beliefs they hold most dear. Then there are those who question the entire basis for statistical process control (SPC) once they have learned the statistical basis for them. I can’t help you with the former, but I have something to say to the latter after the break.

New Year's Resolution

Tuesday, 17 February 2009 23:34 Written by Steven Ouellette

Hang on to your integrity

As you read this you will, no doubt, have already made (and perhaps broken) your New Year’s resolutions. I’d like to propose one that we, as business leaders, have a special responsibility to follow and whose failure we hear about in the news almost every day.

Six Sigma in Hard Economic Times

Tuesday, 16 December 2008 23:28 Written by Steven Ouellette

Have your cake and eat it too

What purpose, if any, does Six Sigma serve in economic downturns? Full disclosure: I teach and consult in Six Sigma and related areas, and you’re reading this article because you’re interested in Six Sigma, so we may not be the most objective people to assess this, but in this article, I will do my best to find the truth.

Acceptable Losses?

Wednesday, 12 November 2008 23:13 Written by Steven Ouellette

More on Acceptance Sampling

By the time you read this, the amazingly long U.S. presidential election will be over. All U.S. citizens will be wandering around aimlessly bumping into objects, pressing their hands to the sides of their heads as the indignation poisons slowly leave their bodies, leaving them with a hangover-like malaise and an intermittent need to babble a mishmash of campaign slogans. So, to cheer you up, I present you with the rest of the story I began last month about acceptance sampling.

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Project Selection for DMAIC

Guidelines to help your project succeed

The Truth About Control Charts

Don't believe what you see; at least at first.

New Year's Resolution

Hang on to your integrity

Six Sigma in Hard Economic Times

Have your cake and eat it too

Acceptable Losses?

More on Acceptance Sampling

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