Article | REF: S8262 V1

Safe operation of control systems - Principles and methods

Authors: Jean-François AUBRY, Éric CHATELET

Publication date: September 10, 2008

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1. Qualitative analysis methods

We've provided a few reminders here, and readers can also refer to [1] and [2] for further details.

1.1 Functional analysis

Functional analysis is not a specific activity of operational safety, but it is a prerequisite for it. It is a method of analysis which consists in thinking in terms of a need to be satisfied, expressed in the form of functions to be fulfilled, with their value criteria, in a given environment.

Its aim is to build a product that satisfies the right need. It favors creativity, objectivity and comprehensiveness....

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