2 Measurement
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 
nonnegative 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 
Mathematical relation among all quantities known to be involved in a measurement (2.48 VIM) 
[1] Numbering of concepts is based on (VIM)
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