Real production use: Reactive design for the manufacturing industry by Roland Kuhn The Reactive Manifesto motivates the reactive tenets with large-scale systems that serve millions of users worldwide, needing exorbitant data size and bandwidth coupled with sub-second latencies. This presentation puts the spotlight on the other end of the spectrum: the systems that operate manufacturing processes and logistics are vital to a factory’s success. Data sizes and rates are easily manageable with today’s hardware, the top priority is absolute reliability. In these systems resilience is the prime motivator for loose coupling, elasticity is just a consequence. This presentation explains the architecture approach taken at Actyx and discusses the suitability of different patterns in this context, including some war stories.