| acceptable quality level (AQL) | The percentage level of defects at which consumers are willing to accept lots as "good."
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| acceptance sampling | A form of inspection applied to lots or batches of items before or after a process, to judge conformance with predetermined standards.
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| average outgoing quality (AOQ) | Average of rejected lots (100 percent inspection) and accepted lots (a sample of items inspected).
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| consumer's risk | The probability that a lot containing defects exceeding the LTPD will be accepted.
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| lot tolerance percent defective (LTPD) | The upper limit on the percentage of defects that a consumer is willing to accept.
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| operating characteristic (OC) curve | Probability curve that shows the probabilities of accepting lots with various fractions defective.
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| producer's risk | The probability that a lot containing the acceptable quality level will be rejected.
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| sampling plans | Plans that specify lot size, sample size, number of samples, and acceptance/rejection criteria
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