Probabilistic Risk Analysis (PRA) is a tool which can reveal shortcomings of the NPP design in general. PRA analysts have not had sufficient guiding principles in modelling particular digital components malfunctions. Digital I&C systems are mostly analysed simply and the software reliability estimates are engineering judgments often lacking a proper justification. The OECD/NEA Working Group RISK's task DIGREL develops a taxonomy of failure modes of digital I&C systems. The EU FP7 project HARMONICS develops software reliability estimation method based on an analytic approach and Bayesian belief network.
|Journal||International Journal of Nuclear Safety and Simulation|
|Publication status||Published - 2012|
|MoE publication type||A1 Journal article-refereed|
- nuclear safety
- software reliability
- probabilistic risk analysis
- Bayesian belief network