General architecture
Clean Architecture is a software design philosophy that emphasizes separation of concerns, maintainability, and testability by organizing code into distinct layers with clear dependencies. It promotes a dependency rule where inner layers (business logic) remain independent of outer layers (UI, frameworks, and infrastructure). Key Principles of Clean Architecture:
- ✅ Independent of Frameworks – Business rules don’t rely on external libraries.
- ✅ Testable – Core logic can be tested without UI, databases, or web services.
- ✅ Decoupled from UI & Infrastructure – Switching databases or frontends doesn’t break the application.
- ✅ Clear Boundaries – Layers (Entities, Use Cases, Interfaces, Delivery) have well-defined responsibilities.
- Long-term maintainability – Changes in one layer don’t ripple across the system.
- Flexibility – Easily adapt to new technologies (e.g., swapping REST for GraphQL).
- Focus on business logic – Core functionality remains pure and framework-agnostic.
By following Clean Architecture, developers create systems that are resilient to change, easier to refactor, and scalable as requirements evolve. Whether you're building a small app or an enterprise solution, it helps keep your codebase clean, structured, and future-proof.
- Transport Layer: Controllers
- Domain Layer (Business Logic): Entities
- Storage Layer: Interfaces
The following graphic explains this in detail:
A cloud-native application is designed from the ground up to leverage the full potential of cloud computing. Unlike traditional monolithic apps, cloud-native apps are built using microservices, containers, orchestration, and DevOps automation, enabling faster development, scalability, and resilience.