Independent verification at every lifecycle phase per IEC 61511 Cl.7
Verification is the cross-cutting activity that confirms every lifecycle phase output matches the requirements defined for it — H&RA output matches PHA expectations, SRS matches Phase 2 allocations, design matches SRS, installation matches design. Per IEC 61511 Cl.7, verification is performed by competent personnel independent of the work being verified.
Verification is the discipline that catches errors before they propagate. Sites that invest in robust verification cycles avoid the cascade where Phase 3 errors become Phase 4 design errors become Phase 5 commissioning issues.
Verification operates at every phase boundary, providing independent assurance that phase outputs are correct before they're used as inputs to subsequent phases. It also feeds FSA evidence.
A focused 6-step methodology calibrated to deliver verification (cross-cutting) as a working capability — not a documented compliance artefact.
Specify verification activities per phase, competency requirements, independence rules, documentation expectations.
Select competent personnel independent of work — internal team rotation, third-party reviewer, or specialised verification function.
Review each phase output against phase input requirements; document findings and resolution.
Track findings to closure; integrate with corrective action database; escalate systematic patterns.
Maintain records per phase; align with retention requirements per OSHA PSM (m)(6) and IEC 61511 Cl.5.2.6.
Compile verification records for FSA Stage 1-4 audits; demonstrate independence and competence.
Decision-gated workflow showing the actual sequence of activities — from initiation through steady-state operation — with key decision points highlighted.
We can scope this element implementation against your facility, regulatory context, and existing management-system maturity — and integrate it with the other Functional Safety Lifecycle Implementation elements you already operate.