ABSTRACT
Expert judgment is required in many areas of risk analysis. Probabilistic Safety Assessment (PSA) makes no exception.
One way of using expert judgment is to collect information from experts to build a computable model, a so-called expert model, with which the desired value (e.g. a failure probability) can be obtained. Expert models can be an attractive option when is it difficult to have a pool of experts available to assess the desired value. Conversion of the expert knowledge into a computable model also can improve traceability and repeatability to the assessment.
