What are the limitations of LOPA in risk assessment? | Sigma

LOPA simplifies complex systems, making it prone to missing details or underestimating risks. It heavily depends on assumptions about failure rates and protection layers, which can lead to inaccuracies. LOPA focuses on specific hazards, often overlooking broader risks, and treats protection layers as either fully effective or failed. It also doesn’t account for real-time changes, complex interactions, or human variability, and tends to overlook external hazards. If you want to know more about it, then join with us.