The book "Metrology, standardization and certification in information technology: training manual . At 2 p.m.. H. 2" by Bakhtisina B. In. is an important and relevant work that immerses the reader in the world of metrology and standardization in the field of information technology This publication will become an indispensable assistant for students, graduate students, as well as practitioners seeking to deepen their knowledge in this field. The second part of the training manual continues to explore key aspects of metrology and certification that play a critical role in ensuring the quality and reliability of information systems. The author, known for his in-depth research and practical experience, offers readers not only theoretical foundations, but also practical recommendations that will help in the application of knowledge in practice. Bakhtyzin V. In. shares his observations and conclusions, which makes the material accessible and understandable even for those who are just starting their way in this complex but fascinating area The book covers a wide range of topics, including measurement methods, quality standards, as well as certification processes that are necessary to ensure that information technology meets modern requirements. Readers will be able to learn about modern approaches to standardization, how to properly conduct metrological tests and certification of software and hardware. It is important to note that the author focuses on the current problems and challenges faced by IT professionals, which makes