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Dependability terminology: similarities and differences
Authors:Prasad  D McDermid  J Wand  I
Institution:Dept. of Comput. Sci., York Univ.;
Abstract:The terminology of the field of dependable computing is used non-uniformly by many authors and standards. This paper presents a survey of definitions drawn from a variety of sources in an attempt to abstract away from the terminology and focus instead on the fundamental concepts underlying the definitions. Two results are reported: first, a characterization of `dependability' as a subjective portmanteau of `entities' and `attributes;' second, a simple, yet rigorous, model for `errors, `failures' and `faults.' The latter model leads to a careful examination of the mechanisms by which undesired situations occur and propagate in complex integrated computer systems. The significance of these results is discussed
Keywords:
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