Перегляд за автором "Zaporozhets, O."

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  • Зображення мініатюри
    Публікація
    Software quality model based on SQuaRE standards
    (ХНУРЕ, 2021) Shtefan, N.; Zaporozhets, O.
    Quality is one of the factors that ensure the commercial success and safety of using the software. Quality is understood as conformity the explicit and implicit requirements of various stakeholders. It is necessary to ensure a joint understanding between developers and users, engineers need to understand the meaning of the concept of quality, characteristics and importance of quality for the developed or maintained software. Measurements are the basis for quality assurance. They are the main tool for managing the life cycle of software products, assessing the implementation of plans and monitoring. To quantify quality, it is necessary to measure the characteristics of the software. Standardization provides unification of requirements for quality, its measurement and assessment. The use of standards has many potential benefits for any organization, especially in key areas such as measuring the quality of software products, information and measurement systems. Recognized international standards organizations have published the ISO/IEC 25000 series of standards for systems and software quality requirements and evaluation SQuaRE, which is gaining widespread practical application. The paper discusses a series of international standards SQuaRE, analyzes the relationship between the quality model, quality characteristics, quality measures and a new concept – a quality measure element of the software, presents the measurement of quality based on these standards.
  • Зображення мініатюри
    Публікація
    State of art of radon and thoron volume activity measurements
    (2021) Skliarov, V.; Degtiarov, O.; Zaporozhets, O.
    control, monitoring and reduction of the dose load from ionizing radiation to the population is a national task, which is determined and coordinated by a number of Laws and Resolutions of the Cabinet of Ministers of Ukraine. Based on the accumulated experience in the creation and operation of the state primary standard for the unit of volumetric activity 222Rn, a methodology for creating the state primary standard for the unit of volumetric activity 222Rn (radon) and 220Rn (thoron) is proposed. The natural background radiation consists of cosmic radiation and radiation from natural radionuclides (232Th, 226Ra, 40K) common in the Earth's crust, soil, air, water and other objects of the external environment. Some part of the territory of Ukraine is located on the Ukrainian crystal shield with significant reserves of 226Ra and 232Th and, as a result, 222Rn (radon) and 220Rn (thoron) emanations from the soil surface into the environment, housing and industrial premises. The purpose of this work is to develop the structure and concept of constructing the state primary standard of the unit of volumetric activity 222Rn and 220Rn based on the accumulated experience in the creation and operation of the state primary standard of the unit of volumetric activity 222Rn.