separation-of-concerns

Separation of concerns is a design principle that organizes codebases by enforcing clear boundaries between modules and layers, requiring the discipline to separate policy from mechanism, data access from business logic, and input parsing from processing.

To separate business logic from data access, apply layered design rules that isolate data handling from domain logic, keeping policy separate from mechanism. This discipline reduces coupling and clarifies code boundaries across frontend, backend, and service layers.

Yes, separation of concerns applies across frontend, backend, and service-oriented architectures. It guides splitting concerns into presentation, business logic, and data access layers, with rules adaptable to your detected stack and project conventions.

The best way to organize code layers in a service-oriented architecture is to enforce clear module boundaries that separate policy from mechanism and isolate data handling from domain logic, reducing coupling and improving overall maintainability.

A strict layered design may not be suitable when project conventions demand tight coupling between presentation and domain logic. Forcing boundaries in simple scripts or prototypes can introduce unnecessary complexity, though the guidance adapts to detected stack patterns.