BI is a technical infrastructure that collects, stores and analyzes company data.
BI analyzes data and creates reports and information that help managers make better decisions.
Software companies produce BI solutions for companies that want to make better use of their data.
Business intelligence tools and software come in a wide variety of forms such as spreadsheets, reporting/query software, data visualization software, data mining tools, and online analytical processing (OLAP).
Self-service BI is an approach to analytics that allows non-technical people to access and explore data.