Decoupled architecture is one of the biggest enablers of agility, speedy delivery, and high quality; yet many software designers have limited experience of what decoupled looks like. I hear people talk about different amounts of indirection and API layers, without understanding that these don't inherently decouple. I've been confronted with the insistence that because there's … Continue reading How to Design Decoupled Systems
The Domain Driven Design Europe happened in January this year in Brussels. Recently, two presentations were made available: Eric Evan's keynote speech is available here. Greg Young presents 'A Decade of DDD, CQRS and Event Sourcing' here. Both are worth a watch. I was particularly interested to hear some of Greg's opinions on what patterns … Continue reading DDD Europe 2016
Moving from a monolith architecture to microservices is a widely debated process, with many recommendations and nuggets of advice available on the web in blogs like this. There are so many different opinions out there mainly because where an enterprise finds their main complexities lay depends on the skillsets of their technologists, the domain knowledge … Continue reading Going Deep Enough with Microservices
In the world of service oriented architectures and CQRS style processes there is a tendancy for nearly everything to raise events. Going back a few years however, before REST became fashionable many interactions were by RPC and often the result of processing commands from a queue. So when did commands become an anti-pattern? Well of … Continue reading Events vs Commands
Coding Daddy Dobbs 