This document discusses DataStax Enterprise (DSE), a distributed database platform for IoT applications. DSE provides a fully integrated technology stack including Apache Cassandra, real-time analytics with Spark, search with Solr, file storage with DSEFS, and management tools. It allows ingesting large volumes of IoT data, performing real-time and batch analytics, and powering low-latency applications at global scale. The document highlights several DSE customer use cases handling trillions of transactions daily from millions of devices.