Abstract
The reliability of technical systems plays a key role in ensuring their efficient operation over time. This article discusses the importance of reliability in maintaining preset parameters of the functioning of a system and its dependence on operating conditions. Maintenance is done to maintain the reliability of a system and control its functionality. The authors propose methods for selecting quality indicators and the optimal frequency of preventive maintenance and emphasise the importance of considering cost aspects when making decisions on maintenance. In conclusion, the article offers a brief algorithm for quality control of technical systems while placing an emphasis on system safety and economic efficiency. The study demonstrates the need to develop and apply new cost-based analysis methods to determine optimal maintenance strategies for technical systems. Overall, the article provides recommendations for improving maintenance operations and increasing the reliability of technical systems.