Integrity and systematic activity are key factors in the success of a modern professional, company, social institutions, state, nation. The main theme of the monograph is the discovery of a holistic method and an evidence-based approach to its implementation in practice. A holistic method (theory) and tools for its implementation have been developed - a holistic approach (methodology of theory), a method of system technology (methodology of practice of holistic activities). The opportunity has been created to holistically and systematically solve problems of any format - from innovative projects of national and regional development, economic and financial problems of management systems at various levels to the problems of creating effective computer systems and technical devices. Allows every professional to construct holistic theories and practices for various areas of their activities. The book is useful for engineers, economists, teachers, scientists and specialists, government officials and top managers, entrepreneurs for implementing integrity and consistency in theory, in projects and in practice. It is also useful for students - students, undergraduates, graduate students, for forming the integrity of their own thinking and practice. The assimilation of the theory and practice of the holistic method is supported in the book by a large number of examples of practical application - from the development of the national idea of the Russian people and the integrity of public administration to a holistic model of specialist knowledge, knowledge market of the enterprise and the design of a silent fan. Each section offers typical tasks for using the method for any professional activity. Experience in solving these problems will help students and experienced specialists form their own version of holistic thinking and practice. For consultations, please visit systemtechnology.ru. To correctly display mathematical operands, use a font that supports Unicode (for example, Arial Unicode MS)