Quality is the good-unit share of total units.

highlighted = computed this step

Good Over Total

Quality divides good units by total units.

quality=good unitstotal units\text{quality}=\frac{\text{good units}}{\text{total units}}
OEE cycle-time snapshotThe chart displays the exact factor bars and the final product.OEE factorsOEE = 3/4 x 3/4 x 8/9 = 1/2planned timedowntime 30operating 90planned 120availability3/4performance3/4quality8/9factornumeratordenominatorvalueavailability901203/4performance901203/4quality40458/9what-if downtime 20; availability 5/6; OEE 5/9deterministic snapshot only

Compute Quality

Quality is 8/9.

4045=8/9\frac{40}{45}=8/9
OEE cycle-time snapshotThe chart displays the exact factor bars and the final product.OEE factorsOEE = 3/4 x 3/4 x 8/9 = 1/2planned timedowntime 30operating 90planned 120availability3/4performance3/4quality8/9factornumeratordenominatorvalueavailability901203/4performance901203/4quality40458/9what-if downtime 20; availability 5/6; OEE 5/9deterministic snapshot only