This document discusses the transition from traditional business intelligence (BI) to big data. It notes that BI focuses on structured transactional data and answering questions about the past, while big data leverages both structured and unstructured behavioral data from diverse sources to answer questions about the future. The document outlines technologies like Hadoop, NoSQL databases, and cloud computing that enable organizations to capture and analyze large, dynamic datasets. It also discusses the roles of data scientists and new types of visualizations and devices that support deriving insights from big data.