This document discusses business intelligence and how it has evolved from legacy reporting to analytical reporting and predictive analysis. It defines each stage of business intelligence and how they build upon each other. Legacy reporting involved static SQL queries of single data sources for immediate information needs. Analytical reporting integrated data from multiple sources into a data warehouse to allow for analysis of large datasets and identification of trends and summaries. Predictive analysis aims to predict future events using real-time and loosely related data sources through techniques like sentiment analysis. The document argues that information, feedback, and intelligence are what drive business.