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## 1-Introduction to problem solving

“90% of problems can be solved with common sense and rigour”- Mr. Imai Definition By definition, a problem is a gap between the desired situation and the actual situation. It is because we all make mistakes, that the equipments degrade… that problems...

## 2-The 5 why

The 5 why Help to identify the root causes of the problems. Principle The principle of 5 why is it based on the principle that one must ask the question ” why ” until we find the root cause of a problem. And it will be by solving this cause that we can...

## The Factor Tree analysis

The FTA is a tool that allows, through a structured approach, to identify the root cause of a problem. Introduction Introduced by Kazuo Kawashima in 2002, then Vice-President quality of the Valeo group, it is a logical approach to solve complex problems. Using the...

## The Shainin method

Wilcoxon Test The Wilcoxon test is not to be confused with the Wilcoxon-Mann Whitney test. Even if they are similar, this one is suitable for matched data. Introduction to the Shainin method Not widely used in France, the Shainin method is a statistical approach to...

## The Kepner Tregoe method

Wilcoxon Test The Wilcoxon test is not to be confused with the Wilcoxon-Mann Whitney test. Even if they are similar, this one is suitable for matched data. Introduction to the Kepner Tregoe method The particularity of the Kepner Tregoe method is that it highlights the...

## The 8D

8D is an 8-step problem-solving methodology (“Disciplines”). Historical The Ford company, in 19871, faced recurring problems, which documented this methodology in a handbook entitled ” Team Oriented problem Solving “2. Originally called...