This paper proposes a method to help the evaluation of safety at work. Such a method is used to collect and identify information in necessary areas to evaluate the level of security in an organization. It involves filling a matrix with three columns and seven rows that match a set of questions. This matrix is based on two classic tools "5W" (Who, What, Where, When, Why and How) and the tool IMC
... [Show full abstract] (Is - Must not be - Could be).