Development of a concept for the task of life cycle effective management of an operated information system

The object of research is the processes of functioning and maintenance, which together determine the operation stage of the information system. The study is devoted to solving the problem of life cycle formal management of operated information systems of management of enterprises and organizations. Research in this area is mainly aimed at developing models, methods and technologies for managing material products and software applications. Issues of life cycle management of interdisciplinary IT products, such as enterprise management information systems, remain practically unexplored. The aim and main limitations of classical (permanent) management of the life cycle of an operated information system are determined and formally described. The main disadvantage of such management is the possibility of a significant increase in the number of change requests that arise as a result of changes in business processes and IT infrastructure of enterprises and organizations. Therefore, it was proposed to move from the concept of classical (permanent) management to the concept of life cycle effective management of an operated information system. This concept allows to formally describe the task of life cycle effective management of an operated information system as a task of achieving optimal characteristics of this information system for each of its specific properties and the minimum probability of the existence of unresolved incidents and requests for changes during the operation stage of this information system. Based on the provisions of this concept, formal descriptions of the objective function and the main constraints of the task of life cycle effective management of an operated information system for its individual properties are developed. The use of this concept allows to consider classical (permanent) management as a partial case of life cycle effective management of an operated information system. Practical application of the proposed formal description of the task of life cycle effective management of an operated information system allows to improve SLM-systems for managing the life cycle of an operated information system without global reengineering of existing systems and technologies for data storage and processing.