Whether inventory management, financial accounting or storage costs, companies need access to up-to-date and reliable data at all times to plan well. In recent years, BI systems are increasingly being used by start-ups as well. Especially for data integration (ETL), data storage (Data Warehouse), data preparation or analysis (OLAP) and data presentation (planning, reporting). Reporting solutions eliminate the need for a manual and error-prone gathering of data from a variety of sources: all metrics are automatically merged into a single system and correlated in any desired combination. Thus, business intelligence has become an indispensable basis for decision-making in companies. Hardly any large enterprise today works without a BI system. Due to the implementation effort and the corresponding costs of the complex solutions, these seemed to be made only for large companies.