The document discusses how managing data is key to unlocking value from the Internet of Things. It emphasizes that variety, not size, is most important with big data. Example use cases mentioned include predictive maintenance, search and root cause analysis. The technology landscape is changing with new architectures like data lakes and new patterns such as event histories and timelines. Managing data is also changing with schema on read, loosely coupled schemas, and increased importance of metadata. The document concludes that data management patterns and practices are foundational to effective analytics with IoT data.