A Business Intelligence system automatically collects information from various, mostly operational and business information systems. The data extracted in this way is typically processed for strategic management decisions and made available to management or the relevant target group within the company in an appropriate format. While a Data Warehouse is not strictly necessary for conducting Business Intelligence, it is advantageous. A Data Warehouse can be understood as a data management system that provides control options for processes within companies as well as decision support for executives. However, the creation and use of such systems do not guarantee success. A well-thought-out strategy is also crucial. It has been repeatedly shown that the success of Data Warehouse projects largely depends on the approach taken in the project.