Why Big Data Matters

This is where big data comes in. A typical supermarket with 20,000 shoppers weekly will gather one gigabyte to two gigabytes of data each week per store. Multiply that by 52 weeks, and 200 or 2,000 stores, and it's easy to see how bits and bytes can start to pile up into a daunting collection of data. The challenge lies in making all that data useful and gleaning actionable insights from it.