Risk Graph SIL Determination
Structured SIL Determination Using Risk Graphs
The Risk Graph SILÂ Determination module provides a structured way to determine Safety Integrity Levels. It evaluates hazards using consequence, exposure, avoidance, and demand to ensure consistent, traceable, and well-documented SIL decisions across all safety lifecycle stages.
Execute SIL Determinations Using the Risk Graph
Perform SIL determinations directly within the risk assessment workflow using the configured Risk Graph methodology. Users can evaluate each hazard scenario by selecting the appropriate consequence severity, occupancy, avoidance probability, and demand rate parameters. The system automatically determines the resulting integrity level and required SIL, ensuring consistent and traceable application of the Risk Graph methodology across SIL assessments.
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Configurable Risk Graph Parameters
Define how SIL requirements are determined using configurable Risk Graph parameters. Establish the consequence, frequency, probability of avoiding the hazard, and demand rate parameters used in the Risk Graph methodology. By configuring these inputs, companies can align SIL determination with their internal risk criteria and corporate safety standards while ensuring consistent application of the methodology across risk assessments.
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SIL Determination Reporting
View and report on SIL determinations across units and assessments. The module provides a clear summary of SIL assessment results, allowing users to quickly see how many scenarios fall within each integrity level category. This reporting capability helps organizations track assessment outcomes, review risk profiles across the facility, and maintain clear documentation of SIL determination activities.
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Understanding Risk Graph SIL Determination in Practice
This method is commonly referenced in international standards such as IEC 61508 and IEC 61511, which define best practices for functional safety and SIL determination across industries. Applying a structured Risk Graph SIL approach helps improve consistency, traceability, and auditability throughout the safety lifecycle.
Using dedicated software to manage Risk Graph SIL assessments further enhances efficiency by standardising calculations, reducing manual errors, and ensuring all decisions are fully documented. This allows teams to maintain compliance while improving the overall quality and reliability of safety studies
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