Two types of management support systems were distinguished: monitoring systems and decision support systems. The classification is of functional character. The systems used in practice are usually an integral combination of both types. Monitoring systems collect source data describing features of real entities that are managed, especially the resources of health care, medical services (drugs) financed from the public funds. The result of monitoring is a collection of data, in the electronic form, organised in an information database. According to the approach adopted by the authors, decision support systems are not used to collect source data, but they make use of the data collected in the electronic form by appropriate monitoring systems, i.e. they are exclusively information systems. The systems were classified according to the type of management decisions they support.

An analysis of the structure and functioning of 5 decision support systems concerned in the following aspects: (1) evaluation of the data on medical services, (2) targeting of medical services control, (3) payer - service provider feed-back information (4) analysis of the use of health care resources, (5) planning to secure medical services.

The key role of the continuous process of source data validation was stressed. Data verification - the first stage of validation process - has to be completed by subsequent inspection evaluation and targeted. An important issue is also a systemic support to the complex feedback information from the payer - provider of services (drugs) financed from the public funds. Thanks to this, the risk for both parties is reduced, and the principle of public financing transparency is met. System-supported analysis of the degree of use of health care resources increases the quality of creating and monitoring the implementation of programmes for securing medical services (drugs) and processes of restructuring in service providers.