DocumentCode :
283787
Title :
Hazard and operability study as an approach to software safety assessment
Author :
Earthy, J.V.
Author_Institution :
Lloyd´´s Register of Shipping, Croydon, UK
fYear :
1992
fDate :
33917
Firstpage :
42491
Lastpage :
42493
Abstract :
Hazard and operability study (HAZOP) is an analytical technique that uses the imagination and experience of experts to identify potential accidents. Lloyd´s Register has used HAZOP techniques for many years and is now focusing its attention on the application of this method to computer systems. This paper is a review of the HAZOP method and specific experience related to software assessment. The selection of representations in the generation of models for particular systems containing software is illustrated using examples from Lloyd´s Register´s current public domain research and development programme. HAZOP brings the experience of a team to bear on all aspects of a system´s design. It offers a well developed process for testing a system´s design against a standard of safe operation. As well as specifying the cause and location of faults, HAZOP usually provides a rich enough hazard description to act as a specification for redesign, The special benefit of HAZOP for software analysis is in identifying the interaction effects between the software, its computer environment and the real world in which it is used
Keywords :
accidents; fault location; insurance data processing; safety; software reliability; HAZOP method; Lloyd´s Register; analytical technique; computer systems; fault cause specification; fault location; hazard and operability study; interaction effects; potential accidents; redesign; safe operation; software safety assessment; standard;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Hazard Analysis, IEE Colloquium on
Conference_Location :
London
Type :
conf
Filename :
211752
Link To Document :
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