Much of the conventional wisdom around SOA doesn’t help you understand how to split something big into something small. It doesn’t talk about how big is too big. It doesn’t talk enough about real-world, practical ways to ensure that services do not become overly coupled. The number of things that go unsaid is where many of the pitfalls associated with SOA originate. The microservice approach has emerged from real-world use, taking our better understanding of systems and architecture to do SOA well. So you should instead think of microservices as a specific approach for SOA in the same way that
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SOA vs Microservices
