Lean Six Sigma Yellow Belt IASSC or ASQ?

Lean six sigma yellow belt

During our trainings many people ask us which  examination body to choose. So we will try to analyze the 2 Body of knowledge regarding the elements of learning. Both bodies are based with the taxonomy of educational objectives of Bloom (2001).

In our analysis will be based on a comparative study of  after doing a general overview:

Reading the two bodies of knowledge, someone can easily be driven to the conclusion that ASQ  incorporates all 5 phases of the DMAIC cycle of a Lean Six Sigma project while IASSC  only the three phases D M C. Making a more careful analysis, however, we will realise that many of the tools listed in the two additional phases of ASQ  BOK are included in earlier phases of IASSC.

Let’s see in detail:

[easy-pricing-table id=”194″]

From the above we conclude therefore that both BOKs have similar learning points with a few exceptions that I will summarize here:

ASQ gives  more details about the Group’s structure and evolution of the Tuckman model and  team’s decision-making. It also focuses on some techniques and project management tools such as the WBS or Gantt chart and data collection modes. Makes an introduction to correlation and regression and Hypothesis testing as well as Deming’s PDCA cycle fundamental. Also refers to the control charts and their significance for the last phase.

The IASSC focuses more on lean management, citing both techniques to define and in the control phase, the process capability analysis and its indicators, forms of analyses during measuring phase.

Very important here is to mention the fact that we have seen in the global market offering Lean Six Sigma trainings of Yellow Belt from a few hours to 2-3 days. You should be very careful when choosing education provider because most of the time, only a mere mention of the main points is being introduced, resulting to exam fail.

The recommended length of education provided by IASSC and from our experience is 40 teaching hours. Don’t underestimate the first level, because the material is about half of the green belt (second level) and rollups, i.e. in the next level you must know very well  the tools of the previous level.

See the following comparative table with all details of the exam:

[easy-pricing-table id=”191″]

 Greece Lean Six Sigma applies an integrated teaching approach completely covering the agenda of both bodies leaving the choice to you.

We are also the only Greek accredited training associate in coaching & training for Europe by IASSC as training associates. You can see more details here.

Here you can see our programs and you can subscribe to our newsletter to be informed.

What questions do you have regarding the exam or methodology? We will be happy to reply!



Huitt, W. (2011). Bloom et al.’s taxonomy of the cognitive domain. Educational Psychology Interactive. Valdosta, GA: Valdosta State University. Retrieved [10-March-2016], from http://www.edpsycinteractive.org/topics/cognition/bloom.html[pdf

Mind Tools (2015). Forming, storming, norming and performing. Understanding the Stages of team formation Retrieved [10-March-2016], from http://www.edpsycinteractive.org/topics/cognition/bloom.html 

ASQ (2015) Plan, do, check, act (PDCA) cycle Excerpted from Nancy R. Tague’s The Quality Toolbox, Second Edition, ASQ Quality Press, 2004, pages 390-392. Retrieved[10-March-2016] , from http://asq.org/learn-about-quality/project-planning-tools/overview/pdca-cycle.html

IASSC : www. iassc.org

ASQ: www. asq.org

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