# OEE Quality Rate

Operations · `Quality Rate` · verification: source checked

Quality rate is one of three elements of Overall Equipment Effectiveness (OEE), a Total Productive Maintenance (TPM) measure of how effectively equipment is used. It expresses losses due to scrap and rework as a percentage of total parts run. OEE multiplies availability, performance, and quality rates.

## Specification

| Property | Value |
|---|---|
| Kind | metric |
| Origin | Total Productive Maintenance (TPM) |

## Connected

- Related: [Overall Equipment Effectiveness](https://machineschema.com/operational/oee.md)

## Study notes

- OEE = Availability Rate × Performance Rate × Quality Rate.
- Example: 0.90 × 0.95 × 0.99 = 84.6% OEE.
- OEE typically focuses on six major losses: failures, adjustments, minor stoppages, reduced operating speeds, scrap, and rework.
- Some companies add other measures judged important to their business.

## Sources

1. [Overall Equipment Effectiveness - Lean Enterprise Institute](https://www.lean.org/lexicon-terms/overall-equipment-effectiveness/) (accessed 2026-10-25)

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JSON: https://machineschema.com/operational/oee-quality.json  
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite Machine Schema and the original sources.