MINET Glossary of Measuring Man – 2. Measurement

2 Measurement

MINET Glossary

Concept[1]

Definition

Notes

Measurement process of experimentally obtaining one or more quantity values that can reasonably be attributed to a quantity

(2.1 VIM)

(VIM): NOTE 1 Measurement does not apply to nominal properties.
Measurement Process of associating numbers, in an empirical and objective way, to characteristics of objects and events of the real world in a way so as to describe them [Finkelstein 1984]
Metrology Science of measurement and its application (2.2 VIM) NOTE Metrology includes all theoretical and practical aspects of measurement, whatever the measurement

uncertainty and field of application. (VIM)

Measurand quantity intended to be measured (2.3 VIM) NOTE 3 The measurement, including the measuring system and the conditions under which the measurement is carried out, might change the phenomenon, body, or substance such that the quantity being measured may differ from the measurand as defined. In this case, adequate correction is necessary. (VIM)
Measurement principle phenomenon serving as a basis of a measurement (2.4 VIM)
Measurement method generic description of a logical organization of
operations used in a measurement (2.5 VIM)
Measurement procedure Detailed description of a measurement according to
one or more measurement principles and to a given measurement method, based on a measurement model and including any calculation to obtain a measurement result (2.6 VIM)
Measurement result

result of measurement

set of quantity values being attributed to a measurand together with any other available relevant information (2.9 VIM) NOTE 2 A measurement result is generally expressed as a single measured quantity value and a measurement uncertainty. If the measurement uncertainty is considered to be negligible for some purpose, the measurement result may be expressed as a single measured quantity value. In many fields, this is the common way of expressing a measurement result. (VIM)
Measurement errorerror of measurement measured quantity value minus a reference quantity value (2.16 VIM) NOTE 2 Measurement error should not be confused with production error or mistake. (VIM)
Measurement uncertainty

uncertainty of measurement

non-negative parameter characterizing the dispersion of the quantity values being attributed to ameasurand, based on the information used (2.26 VIM) MINET:

quantitative tool to assess reliability (GUM type A) as well as partly validity (GUM type B)

Calibration operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and correspondingindications with associated measurement uncertaintiesand, in a second step, uses this information to establish a relation for obtaining a measurement result from an indication (2.39 VIM)
Metrological traceability property of a measurement result whereby the result can be related to a reference through a documented unbroken chain of calibrations, each contributing to the measurement uncertainty (2.41 VIM)
Measurement model

model of measurement
model

Mathematical relation among all quantities known
to be involved in a measurement (2.48 VIM)

[1] Numbering of concepts is based on (VIM)

MINET Glossary

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