clean-architecture

Clean architecture structures codebases into domain, application, infrastructure, and interface layers. This domain-centric design enforces the dependency rule, ensuring framework-specific code is isolated behind stable abstractions to reduce ripple changes.

Refactoring for dependency inversion involves isolating framework code behind abstractions like gateways and repositories. This separates the domain and use-case logic from infrastructure, enabling easy testing and future platform swaps without altering core business rules.

Defining boundaries requires applying the dependency rule so infrastructure depends on domain, never the reverse. Use patterns like entities, use cases, presenters, and data mappers to isolate framework-specific code and maintain a platform-agnostic core.

Clean architecture patterns are effective for architecture reviews of existing projects. They provide a principled blueprint to evaluate codebases, clarify layered boundaries, and guide refactoring toward maintainable, testable, and adaptable software systems.

You need to isolate framework-specific code when pursuing a platform-agnostic design that allows easy testing and future platform swaps. Isolating frameworks behind abstractions ensures ripple changes in external libraries do not affect core domain and use-case layers.