This document discusses how companies can use big data to improve their product development process. It provides examples of how data can be collected from various sources, including apps, websites, conferences, and purchases to gain insights into customers. This detailed customer data allows companies to narrow their targeting of different customer segments. The data is then analyzed and used to develop new products tailored to specific customer needs, which can increase customer renewals. An example case study is also provided of how a media company implemented a tiered paywall strategy with different levels of access based on the data provided by users.