JCGM 200 – International vocabulary of metrology Basic and general concepts and associated terms (VIM)
Before people can communicate they need to know and understand the words they wish to use. This is equally true in metrology, where concepts and terms such as measurement result, measurement error and measurement uncertainty need to be agreed upon if they are to be used in a consistent manner. Since metrology is in an evolving state (moving from a classical to a fully probabilistic approach), it is especially important to have an international vocabulary that can allow metrologists to clearly communicate about the measurement approach that they are using. This document gives guidance on the concepts and terms used in various approaches to measurement.