Definition
Asset criticality ranks assets by how severe the consequence would be if they failed (considering safety, environmental, production, and cost impact) so maintenance resources, spare-parts investment, and strategy choice can be prioritized toward the assets that matter most, rather than treated uniformly.
Key facts
- Ranks consequence of failure, not likelihood: a criticality rating is not itself a probability.
- Typically considers safety, environmental, production-loss, and repair-cost impact together.
- Drives prioritization of maintenance strategy, spare-parts stocking, and response time targets.
- Should be reviewed periodically, since production configuration and redundancy can change which assets are most critical.
How is Asset criticality calculated?
Asset criticality is determined by rating each asset's failure consequence across defined categories (safety, environmental, production impact, and repair cost) then combining those ratings into an overall criticality tier that guides how much attention, spare-parts investment, and strategy rigor the asset receives.
What influences Asset criticality?
Once assigned, asset criticality directs limited maintenance resources: high-criticality assets typically get more frequent inspection, faster response targets, and more conservative strategies, while low-criticality assets may be candidates for run-to-failure, the ranking that risk-based maintenance uses as one input to its scoring.
FAQ
Frequently asked questions
How is the importance of an asset for operations and failure consequences assessed?
Through asset criticality: rating each asset's failure consequence (safety, environmental, production, and cost impact) to prioritize maintenance attention, spare-parts investment, and strategy toward the assets that matter most.
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