Hazard and Risk 23
Hazard and Risk 23 : Hazard Identification Methods: (1) Guidewords: A list of words applied to system items or functions in a hazard study to identify undesired deviations. (2) Failure Mode and Effects Analysis: A process for hazard identification where all known failure modes of components or features of a system are considered in turn and undesired outcomes are noted. (3) Initiating Event: A postulated occurrence capable of leading to the realisation of a hazard. (4) Hazard and Operability (HAZOP) Study: A study carried out by application of guidewords to identify all deviations from design intent with undesirable effects for safety or operability. (5) Checklist: A method of hazard identification by comparison with experience in the form of a list of failure modes and hazardous situations. (6) Hazard Indices: A checklist method of hazard identification, which provides a comparative ranking of the degree of hazard posed by particular design conditions.
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