Practical sheet | REF: FIC0671 V1

Risk analysis methods

Author: Siham BENTALAB

Publication date: February 10, 2012, Review date: November 27, 2016 | Lire en français

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2. Risk analysis methodology

Risk is generally characterized by two main parameters:

  • its impact or severity G ;

  • its probability of occurrence P .

But it can also be characterized by other parameters: its nature (financial, human, natural, etc.), its origin (customer, payment, etc.), its period of occurrence, etc.

The criticality C of the risk is then defined by combining the impact of the risk with its probability.

C = G × P

In certain sectors of activity, such as extreme environments or activities that present a danger to man (nuclear, space, nuclear physics, aeronautics, etc.), detectability D is a major parameter in risk characterization. In this case, criticality becomes: C = G × P × D ....

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