| Abstract |
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Fault trees have been used for software safety analysis in various safety critical systems. The PRIORITY-AND gate was proposed because the conventional AND gate cannot be used to represent the sequential order of the events. This paper shows that even PRIORITY-AND gate is not expressive enough to represent the relative temporal order of the events precisely. We extend the Fault Trees with an AND-THEN gate that is the corresponding gate of the logical connective TAND. This increases the expressive power of the fault trees. The AND-THEN gate can represent relative temporal relations precisely.
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 Additional Information
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Citation:
Pathirage Gamini Wijayarathna, Mamoru Maekawa,
"Extending Fault Trees with an AND-THEN Gate,"
issre,
p. 283,
11th International Symposium on Software Reliability Engineering (ISSRE'00),
2000
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