---
title: "Criticality matrix"
chunk: 1/1
source: "https://en.wikipedia.org/wiki/Criticality_matrix"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T11:46:52.979654+00:00"
instance: "kb-cron"
---

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:


== References ==