EN
The article presents the approach to develop the financial knowledge used for the Decision Support System. The content of the knowledge is focused on essential concepts related to the management of micro, small and medium enterprises. Knowledge-based functions, not previously available in commercial systems, increase the quality, effectiveness, and efficiency of the decision making process. The Decision Support System for SME Managers contains six ontologies describing areas of Cash Flow at Risk, Comprehensive Risk Measurement, Early Warning Models, Credit Scoring, Financial Market, and General Financial Knowledge. The ontology design process and examples of topic maps and usage in financial data analysis are presented here.