Clean Architecture

Introduction

Clean Architecture is a software design philosophy that emphasizes the separation of concerns and independence of frameworks, UI, and databases. It aims to create systems that are flexible, maintainable, and testable.

The primary goal is to keep the software's core logic independent of external factors, making it easier to manage changes.

Key Concepts

• Separation of concerns: Ensuring that different aspects of an application are separated into distinct sections.
• Dependency inversion: High-level modules should not depend on low-level modules; both should depend on abstractions.
• Independence: The architecture should be independent of frameworks, UI, and databases.

Architecture Layers

Clean Architecture is often represented as concentric circles, with dependencies pointing inwards:

graph TD;
    A[Entities] --> B[Use Cases];
    B --> C[Interface Adapters];
    C --> D[Frameworks and Drivers];
            

Best Practices

• Keep business rules at the center and independent.
• Use interface segregation to minimize dependencies between layers.
• Write unit tests for the use cases and entities.
• Avoid direct dependencies on frameworks in core business logic.

FAQ