(V) A Failure Analysis & Prevention based Reflexion on the Human Factor, Liability and Complexity !

Every engineer and scientist (should) know how the physical "matters" and the - at the large sense - mechanisms of the nature make proof of complexity and how it can be sometimes difficult to understand the multitude of the key factors of a physical ruin mechanism of a given product, machine or system. Trying to extract the most objectively what the practicionner often call "the most probable root cause(s)" remains probably in many cases a perillous exercise.

Adding to this 2 important variables that are "time" and "human factor" with all its diversity makes the problem being not only extremely interesting but also incredibly challenging and complex.

Adding to that complex analysis some questions such as responsibility and liability may there sometimes bring the problem to quasi unfeasibility just as because the reality of the sequencies is time & human dependant but also due to its potential relativity. This is especially still more the case while dealing with technical and scientifical fields that are not fully well percieved and/or understood, what is also here a relative question. In fact, are fields of knowledge as well circumscribed as we imagine ? Even if deep knowledge, expertise and authoritatives standards exist ? If yes, what are the confidence limits of a given analysis, evaluation or expertise and what are their borders and their scope ?

How to objectively & humanly transmit the complexity of this potentially relative perception to third parties that will have to base a judgement on ? How to transmit a given view of the question to third parties without losses of refences and complexity relevance ?

This speach intends here to be a personal and opened reflexion on the matter, trying to show the existence of relative borders and variable scope between thoses terminologies.