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Metrology: where do we stumble?

The article presents the main milestones in the development of the science of metrology, identifies the controversial and difficult aspects of the development of this area of ​​scientific knowledge. The goals and objectives of metrology are described in detail, the applied aspects of a peculiar methodological crisis in metrology are revealed. An analysis of a set of issues related to measurements is presented, which clearly confirms the crisis in applied metrology.Issues related to the process of carrying out measuring procedures are considered, and algorithms for performing measurements in accordance with the rules and procedures for servicing (checking) equipment are presented. Measurement operations are presented systematically, that is, taking into account the complex relationships of standards, statistical samples, etc. The article is replete with numerous historical examples and interesting remarks.The article considers such important aspects as joint training, issues of developing a single terminological base and developing adequate statistical databases. The article is supplied with working cases of calculations of significant values ​​for the analysis. The issues related to monitoring changes in the characteristics of the system being measured are considered in detail. The article clarifies aspects of this activity as an element of quality management. The issues of experiment planning in the field of metrology are also considered. The article is polemical.It is concluded that metrology is in the way of big changes. These changes are in the air, can be traced in solving various problems. The purpose of the article is to describe the state that metrology is currently experiencing, identify key points and controversial points. And in essence - to simulate the first steps that will allow changes in metrology to be realized.