The Six Sigma proposes to use a method of problem solving to pilot projects, Figure 3.
This method follows a conductive five-step necessary to obtain reliable results, contracted in the
acronym DMAIC for : Define, Measure, Analyze, Improve or Innovate and Check.
The DMAIC approach of Six Sigma is with his toolbox as a filter to pass from a complex
problem with many uncontrolled variables to a situation where quality is controlled. It is as follows: