The business system information system is a human product in which the necessary effort is needed to enable its development. If the business system is more complex, its information system is more complex, and when a business system is created, then the information system is created, and with the development of the business system, the information system is developed. The maintenance process is required after the application of the information system due to errors in operation caused by the fact that the components do not perform the intended work. As mentioned earlier, the design and implementation of an information system is not serial, but adapts to the business system, so there are always certain errors and problems of the system that need to be solved. A problem is a theoretical or practical issue that requires a solution in order to achieve the desired productivity and quality. Problems are the cause of great difficulties in practice that need to be overcome with the help of a modern approach of engineers in the development of information systems. The most common problems that occur during the development of the information system are the lack of a strategic plan for informatization, misunderstandings between developers and users, changing user requirements, poor project control and the like.