ANDREWS, J.D. and DUNNETT, S.J., 2000. Event-tree analysis using binary decision diagrams. IEEE Transactions on Reliability, 49 (2), pp 230-239 [DOI: 10.1109/24.877343]
This paper is concerned with ETA (event-tree analysis)
where the branch point event causes are defined using fault
trees. Attention is on the nontrivial situation where there are dependencies
amongst the branch point events. The dependencies
are due to component-failures in more than one of the fault trees.
In these situations the analysis methods based on traditional FTA
(fault-tree analysis) are inaccurate & inefficient.
The inaccuracies are not consistent across the outcome events. If
frequency predictions calculated in this way are then used in a risk
assessment then the relative riskswould be distorted and could lead
to resources being used inappropriately to reduce the overall risk.
A new approach using BDD (binary decision diagram) is described
which addresses these deficiencies.