Glossary

What is asset criticality analysis?

Quick answer

Asset criticality analysis ranks equipment by the consequence of its failure, combining factors such as production impact, safety, and cost. It tells a plant where to concentrate reliability effort, because a small share of assets usually drives most of the downtime risk.

Benchmark

Benchmark
GoodA current criticality ranking that actually drives the PM program and spares strategy.
Warning signNo ranking, so maintenance effort is spread evenly instead of focused where failure hurts most.

Why it matters

Reliability resources are always finite. Without criticality, plants spread preventive work and spares evenly and protect trivial assets as carefully as plant-stoppers. Criticality focuses the effort, which is what makes a reliability program affordable and effective.

How to improve it

Rank assets by failure consequence, then align the PM program, spares holding, and monitoring to the high-criticality items first.

Frequently asked questions

Why is asset criticality important?
Because a minority of assets usually drives most of the downtime risk. Criticality focuses limited reliability effort and spares where a failure does the most damage.

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