The Real Truth About Event-Driven Architecture

Event-Driven Architecture (EDA) isn’t a silver bullet—while it promises loosely coupled, scalable systems, you still need to watch out for hidden coupling at runtime and moved bottlenecks when you scale. Complex, cross-service workflows often signal a design smell, and ordering your events can get tricky if your service boundaries aren’t crystal-clear.

This quick dive separates myth from reality, explaining the difference between temporal vs. design-time coupling, why “scale” doesn’t automatically mean “faster,” and how to establish sensible boundaries so your EDA stays maintainable and predictable.

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