The document discusses the development of a Decision Support System (DSS) integrated with data mining techniques to enhance decision-making in uncertain environments, particularly for investment decisions in the banking sector. The proposed Investment Data Mining System (IDMS) utilizes algorithms like K-means to process and analyze investment data, aiming to improve decision quality and support management effectively. The paper outlines the structure of DSS, the role of data mining, and future work planned to implement this system with real banking data.