Mathematical theory of measurement problems: applications. Postulates and conceptions or mathematics in metrology

At the moment there are lots of discussions and disagreements resulting from the measurement uncertainty and terms connected herewith. There is opinion that Guide to the Expression of Uncertainty in Measurement (GUM) contains rather contradictory assertions that may bring much confusion. Read the present article to find more details about the measurement uncertainty issue and the related questions.
Author(s):  Levin S.
Issue:  KIPiS 2016 #3