Introduction In the realm of software development, the complexity of applications has steadily increased over time. To tackle this challenge, software architects have continuously evolved their approaches to designing and structuring backend systems. In this article, we will delve into the evolution of backend software architecture, focusing on key paradigms such as N-Layered, Domain-Driven Design (DDD), Hexagon (Ports and Adapters), Onion, and Clean Architecture. Understanding these architectural styles and their distinctions can...