270
Measurement uncertainty is part of any sufficiently well-specified measurement result [analogous to the VIM definition [2.26]].
Figure A.5 summarizes the key entities related to and their relations, as interpreted in this book.
37. Definitional uncertainty (3.2.4): An uncertainty about the measurand, as it is
defined before its measurement is performed. Sometimes this cannot be
expressed quantitatively. A measurement result whose uncertainty is less than
definitional uncertainty corresponds to a waste of resources devoted to the
design and performance of the measurement [analogous to the VIM definition
[2.27]].
38. Calibration uncertainty (3.2.4): An uncertainty related to the public scale
used for the calibration of a measuring instrument, and derived from the traceability chain that connects the scale to the realization of its definition [the VIM
does not define this concept].
39. Interaction uncertainty (3.2.4): An uncertainty due to the fact that the interaction between the object under measurement and the measuring instrument can
alter the state of the object itself [the VIM does not define this concept].
40. Instrumental uncertainty (3.2.4): An uncertainty due to the nonideal behavior
of the transducer in a measuring instrument, and in particular its limited selectivity and stability [analogous to the VIM definition [4.24]].
41. Target uncertainty (7.3.4): An uncertainty specified as an upper limit, on the
basis of the intended use of measurement results. A measurement result whose
uncertainty is greater than target uncertainty is useless for its intended use
[analogous to the VIM definition [2.34]].
42. Standard measurement uncertainty (3.2.5): An uncertainty reported as a
standard deviation [analogous to the VIM definition [2.30]].
43. Object relatedness, objectivity of measurement (7.4.3): An overall feature of
measurement and its results, related to the extent to which the information conveyed by the measurement is about the measurand and nothing else. Together
with intersubjectivity, objectivity characterizes trustworthy measurements [the
VIM does not define this concept].
Fig. A.5 The entities related to and their relations
Appendix A: A basic concept system of measurement
Measurement uncertainty is part of any sufficiently well-specified measurement result [analogous to the VIM definition [2.26]].
Figure A.5 summarizes the key entities related to
37. Definitional uncertainty (3.2.4): An uncertainty about the measurand, as it is
defined before its measurement is performed. Sometimes this cannot be
expressed quantitatively. A measurement result whose uncertainty is less than
definitional uncertainty corresponds to a waste of resources devoted to the
design and performance of the measurement [analogous to the VIM definition
[2.27]].
38. Calibration uncertainty (3.2.4): An uncertainty related to the public scale
used for the calibration of a measuring instrument, and derived from the traceability chain that connects the scale to the realization of its definition [the VIM
does not define this concept].
39. Interaction uncertainty (3.2.4): An uncertainty due to the fact that the interaction between the object under measurement and the measuring instrument can
alter the state of the object itself [the VIM does not define this concept].
40. Instrumental uncertainty (3.2.4): An uncertainty due to the nonideal behavior
of the transducer in a measuring instrument, and in particular its limited selectivity and stability [analogous to the VIM definition [4.24]].
41. Target uncertainty (7.3.4): An uncertainty specified as an upper limit, on the
basis of the intended use of measurement results. A measurement result whose
uncertainty is greater than target uncertainty is useless for its intended use
[analogous to the VIM definition [2.34]].
42. Standard measurement uncertainty (3.2.5): An uncertainty reported as a
standard deviation [analogous to the VIM definition [2.30]].
43. Object relatedness, objectivity of measurement (7.4.3): An overall feature of
measurement and its results, related to the extent to which the information conveyed by the measurement is about the measurand and nothing else. Together
with intersubjectivity, objectivity characterizes trustworthy measurements [the
VIM does not define this concept].
Fig. A.5 The entities related to
Appendix A: A basic concept system of measurement