A method for system reliability analysis with change-over operation

When fault tree analysis (FTA) is used in analysing the system reliability including human functions, the correspondence between an abnormal event and the human reaction against it may become ambiguous. In order to supplement this defect, a case study has been conducted in this research to develop a new technique termed ‘Corrective Operation Diagram Analysis’, and an attempt has been made to establish the correspondence between the reliability analysis of equipment/hardware using FTA and human reliability analysis.