Note to self #4

"[...]the first and the most frequent used tool for analyzing the problem is the cause and effect diagram, which takes into consideration 6 possible sources of failure/failures:

• the environment;
• the measurements;
• the material;
• the man-power;
• the methods;
• the machines.

[...]the main elements which produce non-conformities [...] are the defective assembly and the inappropriate use of the equipment (as causes that are attributed to the man-power)."