Probabilistic Safety Value Analysis is a process that uses the Reliability, Availability, Maintainability and Safety (RAMS) process combined with Fault Tree Analysis (FTA).
It is designed to achieve the following objectives:
- evaluate the soundness of a system
- check if all safety requirements are fulfilled (using RAMS)
- create a better understanding of context, causes and effects
- evaluate critical failure combinations (Minimal Cut Sets)
- provide a description of potential for optimisation via comprehensive assessment
- support probabilistic methods to model uncertainty
Based on the results of probabilistic safety value analysis, measures can be taken to optimise the system such as:
- optimisation of the system structure
- creation of additional redundancies
- replacement of particularly susceptible components with more robust components
- installation of monitoring systems to detect faults at an early stage
- adjustment of maintenance intervals and scope
- avoidance of common cause failures.
The information on this page was primarily sourced from:
- Text provided by Taylor Burns, Project Engineer, RiskConsult, GmbH
- Peer review conducted by Pedram DaneshMand, Director, Project Risk Consulting, Audit, Assurance & Risk Consulting, KPMG
RiskConsult RIAAT Software RAMS Analysis webpage, 2019.
Edited by Nadine Cranenburgh