Local self-government units are municipalities and cities. Local self-government units perform activities within the local scope that directly meet the needs of citizens, and especially activities related to the arrangement of settlements and housing, spatial and urban planning, utilities, child care, social welfare, primary health care, education and primary education, culture, physical culture and sports, consumer protection, protection and improvement of the natural environment, fire and civil protection. An information system is any system that processes data and information supports an activity. If this activity is in the business area, it is called an information system in business because the information activity is aimed at supporting business. Business can be observed through business process execution activities, business management (business system), and communication and cooperation activities within the business system and communication with its environment. The information system should provide data and information for the listed activities. From this point of view, the information system can be divided into a transaction processing system, a management support system, and a communication and cooperation system.