What is accuracy?

accuracy meaning (IEEE) (1) A qualitative assessment of correctness or freedom from error. (2) A quantitative measure of the magnitude of error. Contrast with precision. (CDRH) (3) The measure of an instrument’s capability to approach a true or absolute value. It is a function of precision and bias. See: bias, precision, calibration.


reference: U.S . Food & Drug – Glossary of Computer System Software Development Terminology (8/95)