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Modeling of NonFunctional Characteristics of the Software for Selection of Accurate Scope of Information for Their Evaluation

The article proposed set-theoretic models of nonfunctional characteristics of software used to systematize information on nonfunctional characteristics and bring it to the common (unified) form in accordance with ISO 25010:2011, ISO 25023:2016. In addition, basic and real ontological models of nonfunctional characteristics of software are developed based on ISO 25010:2011 and ISO 25023:2016 standards. These models provide the basis for choosing the sufficient information to evaluate nonfunctional characteristics of software.