Many PMPs want to be even more distinguished by adding Six Sigma credentials to their toolbox. But what is Six Sigma, and how does Six Sigma certification work?
The definitions of Six Sigma are slightly different from each other, but they are all related to the concept of quality. All at once, Six Sigma is a philosophy, a set of tools and a methodology. See “Differences”. Opinions on the definition of "Six Sigma" for more details about this.
There are several participants in the very formal organization of Six Sigma: Black Belt, Green Belt, Black Black Belt, Yellow Belt, White Belt, Champions and Leaders. The American Society for Quality (ASQ) provides basic descriptions of these roles on the page “Belts, Leaders, and Champions — What Does All This Mean?”.
However, there are two main levels of certification: the green belt and the black belt. The American Society for Quality is a leading authority on quality, but there are several organizations that provide training and give their own certification that stands on their reputation and on recognizing the name “Six Sigma”.
Green Belt certification is an entry level certification for a given area. The Green Belt analyzes and solves quality problems and participates in quality improvement projects, and in the formal sense works under the supervision of the Black Belt. The Green Belt certification is based on the Six Sigma Knowledge Test (BOK), and the areas of knowledge required and addressed in the ASQ test are described in the Six Sigma BOK description. Applicants for the test must have 3 years of experience in this BOK. For more information, see ASQ Green Belt Certification.
The Black Belt certification is a Six Sigma level certificate. Black belts have a greater depth of knowledge about all aspects of DMAIC (definition, measurement, analysis, improvement and control) and other models of Six Sigma processes. In addition, the Black Belts should be able to fulfill leadership roles in the context of projects. Black Belt certification requires that you complete at least two Six Sigma projects and submit an affidavit project for one. The necessary knowledge can be found in the summary of the Six Sigma Meeting of Knowledge. You can also familiarize yourself with the full boot body of the Black Belts. For more information, see ASQ Black Belt Certification.
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