Big data refers to the massive amounts of structured, semi-structured and unstructured data being created from sources like sensors, social media, digital pictures and videos, and transactional systems. This document discusses how the volume of data is growing exponentially from sources like RFID tags and smart meters. It also explores how insights can be extracted from big data through analyzing trends, correlations and other patterns in volumes, varieties and velocities of data beyond what was previously possible. However, as more data is created, the percentage of available data an organization can analyze is decreasing, making enterprises relatively "more naive" about their business over time.