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The paper discusses the issues involved with computer support for systems reliability modelling. The problems related to computer aided logic model construction are explained. Expert system technology offers promising perspectives to solve these problems. Combined with graphics interface and analysis capabilities, a tool based on expert system technology can provide a natural engineering orientated environment for computer assisted reliability and safety modelling and analysis. Expert systems can explain their reasoning so that the analyst can become aware of how and why results are being obtained. Hence, the learning aspect involved in manual reliability and safety analysis can be maintained and improved. The STARS project (Software Tool for the Analysis of Reliability and Safety) aims at developing an integrated set of Computer Aided Reliability Analysis tools for the various tasks involved in systems safety and reliability analysis. This includes hazard identification, qualitative analysis, logic model construction and evaluation. For fault tree construction, a frame/rule based expert system is used, in which the deductive (goal driven) reasoning and the heuristics applied during manual fault tree construction, is modelled.

Additional information

Authors: POUCET A, JRC Ispra Estab. (IT)
Bibliographic Reference: Paper presented: The Role and Use of PCs in PSA and Decision Making, Los Angeles (US), Aug. 21-22, 1989
Availability: Available from (1) as Paper EN 34872 ORA
Record Number: 198910788 / Last updated on: 1994-12-01
Original language: en
Available languages: en