This document provides an overview of business intelligence (BI). It defines BI as collaborating people and technology to enhance decision making by delivering the right insights at the right time. Companies deploy BI to gain faster customer segmentation, understand customer behavior, reduce question response time, and make even simple decisions using integrated data. The document outlines the evolution of BI from basic reporting to predicting and operationalizing insights. It also shows how reports have evolved over time and presents the Gartner BI matrix and typical BI system architecture. Finally, it provides a real-world example of a lifetime segmentation report generated using BI tools and processes.