Operating Characteristic Curve (OC Curve)

Operating Characteristic Curve (OC Curve) - A graph to determine the probability of accepting lots as a function of the lots' or processes' quality level when using various sampling plans. There are three types: type A curves, which give the probability of acceptance for an individual lot coming from finite production (will not continue in the future); type B curves, which give the probability of acceptance for lots coming from a continuous process; and type C curves, which (for a continuous sampling plan) give the long-run percentage of product accepted during the sampling phase.

[Category=Quality ]

Source: American Society for Quality, 10 October 2010 08:39:11, http://www.asq.org/glossary/