Business intelligence (BI) refers to technologies and applications used to analyze data and provide access to information about company operations. It involves collecting data from across the organization, storing it in data warehouses or data marts, and providing tools to access and analyze the data. The goal of BI is to help business users make more informed decisions by providing insights from large amounts of internal and external data. Key aspects of BI include data warehousing, online analytical processing, reporting, dashboards, scorecards, and data mining.