Оценка долговечности вычислительной техники с учетом переменного коэффициента вариации
The article deals with the issue of reliability, namely the durability of computer engineering. The methodology of the refined estimation of durability indicators of computer engineering in the IDEF0-diagram format is developed. The example of usage of the developed methodology is given. The object of research the graphics card of the AMD Radeon type is chosen. A summary table of the mean group value of the variation coefficient for the subgroups of electrical components, which are part of the selected graphics card, is formed. A comparison of the numerical values of the gamma-percentile operating life of the graphics card, taking into account the different values of the coefficient of variation, was made. The influence of the coefficient of variation on the value of gamma-percentile operating life is considered. The methodology allows obtaining more accurate values of durability indicators and thereby increasing the reliability of the calculated assessment of durability characteristics.