Business Intelligence (BI) results in analytical reporting that summarizes key metrics by rolling data up to high-level summaries, or drilling into data at a fine grained detail. It allows you to slice data by customer, location, quarter, year, etc.. It gives you an understanding of your organization at a high-level with the ability to drill into details at a rapid pace. This provides a data-driven decision support system.
BI consists of data warehousing, cubes with fact tables, measures and dimensions, dashboards, key performance indicators (KPIs) and reporting via your intranet, internet, Windows, tablet, or mobile phone.