This document discusses using big data and a single customer database to gain insights into customers and improve engagement. It presents a three phase approach: 1) Connecting disparate data sources to build a single customer view, 2) Using analytics and data mining to gain customer insights, 3) Implementing a vision and strategic changes to marketing approaches based on insights, including moving from event-driven to trigger-based personalized interactions. The goal is to better understand customer behaviors across their lifecycle to improve engagement, retention, and growth.