Author(s)

J.N. Clare, M.F. Clmdleigli & J.R. Catmm

Abstract

SUSI: a methodology for safety analysis of control rooms J.N. Clare", M.F. Clmdleigli" & J.R. Catmm^ ^Cambridge Consultants Limited, Science Park, Milton ^Arthur D. Little, Science Park, Milton Road, Cambridge, 1 Introduction The use of computer based systems has many advantages, including increased functionality, increased flexibility and, hopefully, ease of use. Because of these advantages their use is increasing dramatically, including applications where failure could have an adverse impact on safety. It is important to remember that most such systems have contact with human users and are used in organisations where there are set procedures and ways of working. For industries such as petro-chemical, rail transport and air transport the consequences of a failure could be catastrophic and they have realised that evaluating and controlling the risk to humans arising from failures of such systems is vital. The process of evaluating the possible safety failures is known a

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