 | This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Criticality matrix" – news · newspapers · books · scholar · JSTOR (June 2024) (Learn how and when to remove this message) |
In operations research and engineering, a criticality matrix is a representation (often graphical) of failure modes along with their probabilities and severities.
Severity may be classified in four categories, with Level I as most severe or "catastrophic"; Level II for "critical"; Level III for "marginal"; and Level IV for "minor".
Example
For example, an aircraft might have the following matrix:
| Failure mode | Severity | Probability |
|---|---|---|
| Collision | High | Low |
| Engine failure | High | Low |
| Ice buildup | Medium | High |
References
- DTIC ADA278508: Failure Mode, Effects, and Criticality Analysis (FMECA). Reliable Analysis Center. 1993. pp. 26–29.
 | This industry-related article is a stub. You can help Misplaced Pages by expanding it. |
 | This engineering-related article is a stub. You can help Misplaced Pages by expanding it. |