The Many Meanings of Event-Driven Architecture Martin Fowler GOTO 2017

This presentation was recorded at GOTO Chicago 2017. #GOTOcon #GOTOchgo Martin Fowler - Author, Speaker, Consultant and General Loud-mouth on Software Development ABSTRACT During my career, I've often people heard people describe their systems as “event-driven“. But when looking deeper that phrase seems to lead to some very different architectural assumptions. On a recent workshop we identified four different patterns [...] TIMECODES 0:00 What people mean by EDA 00:51 How he came to write down common patterns of EDA and hold this talk 02:45 4 patterns detected 03:20 Pattern 1: Event Notification 08:33 Events vs Commands 11:30 Pro: Decoupling 13:50 Contra: inability to understand what is going on by stepping through the code 14:53 Pattern 2: Event-carried State Transfer 20:51 Pattern 3: Event Sourcing 32:11 Can be a very nice system development-wise 33:43 Downside of Event Sourcing 38:46 Which events to record in the event store? 43:31 Pattern 4: CQRS 47:39 Conclusion : How to use the kn