Danger. In safe systems, indicates a condition of danger, state of failure and/or environmental of the system or human behavior etc., having the risk of causing damage (Harm). This condition can be matched to a single event (hazard event) or a sequence of events (hazard sequence). The concept of Hazard (danger) also introduces the concept of Hazard Analysis (HA), that is the analysis process that aims to determine the hypotheses of the cases of danger, normally formalized in a Hazard log, a document forming part of the Safety management activities, in which these cases are identified, together with the decisions and solutions provided
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