- Paretos to have enough perspective? - Adapted measurement tools? - Experts? - An ishikawa diagram? - An indoor meeting with all the actors concerned? No indeed ! - Your legs - Your eyes
# Your LEGS to go to the field: ... where the problem arises ... and when it arises. # Your EYES to observe the immediate environment of the problem, to see its precise effects, its exact circumstances, to see what it really is, that is to say in reality, and also what it is not .
Problem solving is a matter of common sense, of course, but it does not improvise.