Notes on Martin Kleppmann's excellent Designing Data-Intensive Applications. Chapter 1: Reliable, Scalable, and Maintainable Applications Data Systems Dimensions to consider when thinking about data systems: access patterns, performance characteristics, implementations. Modern data systems often blur the lines between databases, caches, streams, etc. Reliability Systems should perform the expected function at a given level of performance, and be tolerant to faults and user mistakes Fault: One co...