We use Cassandra in two ways: First, it holds our product database. Second, we use it to store and analyze the scans generated by the apps that integrate the Barcode Scanner SDK. We call this Scanalytics. Scanalytics is a web-based analytics platform that lets app developers see what happens in their app: What kind of products do their users scan? Groceries, electronics, cosmetics, etc.? Where do they scan? At home? In the retail store? And so on. All that goes into Cassandra.
via NoSQL databases