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Second level of certification in the 6 Sigma hierarchy, the Green Belt is in charge of piloting problem-solving projects using most of the statistics tools.

The function of the Six Sigma Green Belt

The Green belt works on smaller projects or under the responsibility of the black belts. Generally, budgets for Green Belt projects are from 30 000 to 80 000 $.

Part-time on these missions, the Green Belt has the role of:

  • Drive problem solving projects.
  • Define and manage projects
  • Document and present the results.

The human qualities of the Green Belt

Methodical: The 6 Sigma consists of a multitude of tools that all have defined processes… and not at random. Reversing or forgetting steps can lead to the failure of the project.

Spirit of Synthesis: situations are often complex, in order to avoid getting lost in the workings of change and problem solving, hindsight and the ability to synthesize is necessary.

simplicity and pugnacity: These are attitudes often cited as essential to facilitate contact and achieve adherence to these ideas.

Perfectionist : seeking Perfection is the ultimate goal of the process and projects.

The components of the Green Belt training

In addition to knowing at a higher level the knowledge of the Yellow Belt, the Green Belt is formed on the elements below.

For the levels, the scale is as follows:

  • E: Expert, knows how to use and transmit
  • C: Good knowledge, knows how to use
  • I: understands what it is but not or little use it

Lean Six Sigma Management

Managing Lean 6 Sigma Projects

Know when to choose the DMADV rather than the DMAIC.

Have knowledge of the DFSS and know how to describe the process.


Lean 6 Sigma and Finance

Know how to explain where the results of the Lean Six Sigma are found in the company’s balance sheet.


The fundamentals of Lean

The fundamentals of Lean

Know how to use the Visual Stream Mapping to identify wastes, over-stocks, unused space, Recovery…

Know how to describe the concept of Theory of constraints.



Total Productive Maintenance

Know how to define what the TPM is and how it can be implemented to better control processes.


Problem solving

be initiated to the Shainin method.

Understand the value of a Multi-Vari study and know how to lead it.


Lean Six Sigma Innovation

Robust design

Understand the principle of robust design, as well as the associated tools that are the loss function, the product plan and the Taguchi’s experience plans.


Phase Define

Voice of Business

Understand that the client’s voice is not the only criterion for success.


Measure Phase

Analyze the measurement system

Know how to define, calculate and interpret the P/T ratio, repeatability (% EV), reproducibility (% AV) and part variability (% PV).

Understand when the Isoplot is applied and how to use the Kappa Test.


Analysis Phase

Determine relationships between data

Know the advanced principles of regressions (monotonous and multiple regression)

Know how to calculate the coefficient of Bravais-Pearson and the P-Value and how to interpret them.


Advanced Data Description

Understand the principle and importance of the Confidence interval.


The probabilities

Understand the principle of independent, complementary and incompatible event.

Know the laws of probability that applies according to whether we are in a case of a P-list, P-Suite, Arrangement and combination.

Know the rules of calculation: complement, addition, multiplication.


Hypothesis Testing

Know the advanced hypothesis tests that are the test of the KHIDEUX, Friedman, Kruskal-Wallis, Wilcoxon-Mann Whitney and Wilcoxon.


Phase Control

Put under control a process

Know the other maps of Shewhart: C, NP, U and P.

Be introduced to the advanced control cards that are the map EWMA and CUSUM: Know the advantages and know how to interpret them.


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