The technology commonly used for data visualization in business intelligence is Tableau. Tableau allows users to create interactive and shareable dashboards that can visualize data trends in real-time. This tool transforms raw data into a more understandable format through visual elements like graphs, charts, and maps. Its drag-and-drop interface simplifies complex data analysis, enabling users to uncover insights easily. Businesses leverage Tableau to make informed decisions quickly by presenting crucial data in a visually appealing and intuitive manner, enhancing overall data comprehension.