The book "Determination of the main characteristics of diagnostic parameters: Guidelines", created by the team of authors, is an indispensable source of knowledge for specialists working in the field of diagnostics and data analysis . This book is not just a collection of theoretical propositions , A practical guide , which will help to understand and master modern methods of determining the key characteristics of diagnostic parameters , which is especially important in the conditions of rapidly developing technologies and requirements for accuracy and reliability of diagnostics. The focus of this book is on issues related to the definition and analysis of diagnostic characteristics, such as sensitivity, specificity, accuracy, reliability and other parameters critical to assessing the effectiveness of diagnostic methods. The authors, who have extensive experience in the field of medical diagnostics, engineering systems and analytical methodology, offer the reader a systematic approach to solving problems related to the assessment of diagnostic characteristics. The book examines in detail the methods of data collection, their processing, statistical approaches and practical recommendations for interpreting the results. This makes the book a valuable tool for professionals involved in the development and implementation of diagnostic systems, as well as for researchers seeking to improve the quality of their research. "Identifying the main characteristics of diagnostic parameters: Methodical guidelines" is perfect for a wide range of readers - from students of technical and medical universities to experienced engineers and researchers. It will be especially interesting for those who are looking for a practical guide to assessing the effectiveness of diagnostic methods, as well as for those who are engaged in the development of new diagnostic technologies and methods of data analysis. The book is intended for readers with basic knowledge in the field of statistics and data analysis, but it contains enough detailed explanations and illustrations to become useful even for beginners. The peculiarity of this book is in its practical bias and orientation to real tasks. The authors use modern language, avoiding complex terms without explanation, which makes the book accessible and understandable. At the same time, it does not lose scientific rigor and contains many examples from practice, which allows the reader to easily transfer the acquired knowledge into professional activities. The book also details standardization and regulatory issues, which is especially important for those working in the field of medical diagnostics or industrial safety. This collection of methodological guidelines stands out for its relevance and usefulness in the context of a constant increase in the volume of diagnostic information and the need to improve its quality. It emphasizes the importance of correctly determining the characteristics of diagnostic parameters to improve the accuracy and reliability of diagnostics, which directly affects the quality of decisions made. In addition, the book touches on current trends in the field of automation and digitalization of diagnostic processes, which makes it especially valuable for professionals seeking to keep up with the times. The author's team, united by a common goal - to make complex technical and scientific issues as accessible as possible - has created a work that will become a reliable assistant for professionals seeking to improve their skills and expand their knowledge. In general, "Determination of the main characteristics of diagnostic parameters: Methodological Guidelines" is not just a textbook, but a full-fledged guide to the complex world of diagnostics, which will help you understand how to correctly evaluate and interpret diagnostic parameters in order to achieve maximum accuracy and efficiency in your work. This book deservedly occupies a place in the library of everyone who appreciates the quality, accuracy and scientific approach to diagnosis.