RiskVu Feature Summary

RiskVu analyses probabilistic risk models that have been created using the FaultTree+ computer program. RiskVu does not require FaultTree+ to be installed on the same machine in order to run. Instead RiskVu accesses one or more project files created by the FaultTree+ program.

The probabilistic risk models developed using FaultTree+ contain fault and event tree models which link component failures and other events through sub-system and system failures to consequences for which risks may be quantified. A RiskVu user need not know anything about these fault and event tree models that are entirely constructed in FaultTree+.

RiskVu may be used to perform the following principal functions:

• Vary the reliability of individual components or groups of components and determine the effect on risk and cost.
• Modify the configuration or design of a system and determine the effect on risk and cost. This function allows a system design to be optimized from a risk and cost viewpoint.
• Compare the risk from different system designs by saving design ‘scenarios’ and their associated probabilistic risk values.
• Determine the effect on risk due to current component outages due to maintenance or failure. This feature provides the facilities of a risk monitor and enables operators to determine the current safety status of an operating system.
• Determine the effect on risk due to planned maintenance activities. This function allows the scheduling of maintenance activities to minimize risk.

RiskVu provides a sophisticated graphical user interface that allows data to be accessed and displayed using custom schematic diagrams, hierarchy diagrams, tables and graphs.