Module pages
Every analysis step
Each page corresponds to a step in the analysis workflow. Data flows automatically from one page to the next.
0
Study context (ContexteRI)
Complete study scoping before any analysis—administrative information, scope, regulations, and team.
- Study identification Title, facility, organization, owner, reference, version, and start/end dates.
- Functional & geographical scope Free-text description of the study boundaries and explicit exclusions.
- Applicable regulations Free-text field + list of standards (SEVESO, ATEX, ISO 31000…).
- Working assumptions Structured text—automatically included in the report.
- Method selection Select PHA, FMEA, HAZOP, LOPA, or Bow-Tie to enable or disable the corresponding menu pages.
- Safety-report mode (SEVESO) Enables the fixed PIGC scales and regulatory thresholds across all methods.
- Team composition List of members and roles—included on the report cover page.
1
Facility modelling
Four-level hierarchy—systems, functions, components, and process variables—a common reference for all methods.
- Four hierarchy levels Systems → Functions → Components → Variables (flow, temperature, pressure…).
- Automatic reuse Systems and components appear as selectors in PHA, FMEA, HAZOP, and LOPA—with no re-entry.
- Vue tableau + vue arbre Visual navigation through the facility hierarchy.
- Import IA Describe the facility in natural language—AI suggests an initial hierarchy for validation.
- Structured Excel export Complete exportable tree (exportModelisationXLS.js).
2
PHA—Preliminary Hazard Analysis for physical risks
Identification of risk scenarios by system/equipment, with initial and residual ratings.
- Structured table System, equipment, hazard, feared event, causes, and consequences.
- Double cotation G/V Initial Severity × Likelihood plus residual ratings after preventive measures.
- Dynamic risk matrix Immediate visualization of scenario positions (Critical / Unacceptable / Monitor / Acceptable).
- Preventive measures Structured field linked to the overall action plan.
- AI generation AI suggests PHA scenarios from the facility model—for review and completion.
- Filters and sorting By system, risk status, and criticality—to prioritize reviews.
- Unlimited undo/redo Complete change history.
Import BowTie : Any PHA scenario can be imported into the advanced Bow-Tie diagram in one click (causes → barriers → consequences).
3
PHA—Safety Report (SEVESO)
Specialized PHA for SEVESO facilities—fixed regulatory PIGC scales, hazardous phenomena, and passive/active risk-reduction measures.
- Fixed PIGC scales Severity and probability comply with SEVESO regulatory scales—and cannot be changed, ensuring compliance.
- Hazardous phenomenon + top event Dedicated columns for the initiating event, hazardous phenomenon, and top event.
- Passive and active risk-reduction measures Separate risk-reduction measures—passive (physical barriers) and active (instrumented barriers).
- Matrice SEVESO Graphical positioning on the regulatory matrix (Unacceptable / Control required / ALARP / Acceptable).
- Lien LOPA Safety-report scenarios with active risk-reduction measures can be sent to LOPA for quantification.
- Advanced Bow-Tie import Top event → central event in the diagram; risk-reduction measures → barriers with a passive/active type.
4
FMEA—Failure Modes, Effects and Criticality Analysis
Systematic analysis of component failure modes, with initial and residual RPN (S × O × D) calculation.
- Three rating criteria Severity (S), Occurrence (O), and Detectability (D)—RPN = S × O × D, calculated automatically.
- Components from the model Direct selection from the facility hierarchy—ensuring consistency.
- Typical failure modes Failure-mode library by component type (valve, pump, sensor…).
- Initial vs residual RPN Visualization of criticality reduction after corrective measures.
- Sort by criticality Automatic ranking of the most critical components (maximum and average RPN).
- AI generation AI suggests relevant failure modes by component type.
- Built-in action plan Corrective measures linked to overall action tracking (In progress / Completed status).
5
HAZOP — Hazard and Operability Study
Analysis of process-parameter deviations—guide words × parameters—with ratings and recommendations.
- Node / parameter / guide-word structure Classic HAZOP organization—deviation = parameter + guide word (More, Less, No, Reverse…).
- Variables from the model Process parameters (flow, pressure, temperature) come directly from the model.
- Guide-word library Standard HAZOP plus configurable business-specific guide words.
- Causes / Consequences / Existing safeguards Three structured columns for each deviation.
- Cotation G/V + recommandations Recommendations prioritized according to deviation criticality.
- AI generation AI suggests likely causes and consequences for each deviation.
- Summary view by node Dashboard of critical deviations by HAZOP node.
6
LOPA — Layer of Protection Analysis
Probabilistic quantification of risk scenarios—initiating frequency × IPL PFDs—SIL decision.
- Structured LOPA scenarios Initiating event, initiating frequency, top event, consequence, and severity.
- Protection layers (IPLs) Unlimited IPLs per scenario—each IPL has a type (SIS, BPCS, relief valve…) and a PFD.
- Calcul automatique Resulting frequency = f_initiating × ∏ PFD(IPL)—compared with the tolerance threshold.
- SIL decision Calculation of the required SIL if the target frequency is not achieved with existing IPLs.
- Import depuis APR/EDD Safety-report PHA scenarios with active risk-reduction measures are offered for LOPA import.
- Dedicated Excel export Complete LOPA table with formulas (exportLOPAXLS.js).
Lien SEVESO : LOPA scenarios requiring a SIL are included in the safety report's active risk-reduction measure summary.
