Explain the purpose of Clean Architecture Inner and Outer layers
Câu trả lời
Clean Architecture is a software design philosophy that emphasizes the separation of concerns by organizing a system into distinct layers. Each layer has a specific role and responsibility, ensuring that the system is maintainable, scalable, and testable. Here's a detailed explanation of the purpose of the inner and outer layers in Clean Architecture:
Inner Layers
The inner layers of Clean Architecture are primarily concerned with the core business logic and policies of the application. These layers are designed to be framework-independent and should not depend on any external libraries or frameworks. This independence ensures that the business rules are not affected by changes in external technologies or databases, making the system more robust and adaptable to changes.
Entities Layer: This is the innermost layer and contains the enterprise-wide business rules and data structures. Entities are the core business objects of the application and encapsulate the most general and high-level rules. They are meant to be used by multiple applications within the enterprise and should remain unaffected by changes in any outer layers[2][4].
Use Cases Layer: Surrounding the Entities layer, the Use Cases layer contains application-specific business rules. It organizes the flow of data to and from the Entities and implements the business rules that are triggered by external requests. This layer acts as a mediator between the Entities and the outer layers, ensuring that the business rules are correctly applied while keeping the Entities layer isolated from external changes[2][3].
Outer Layers
The outer layers of Clean Architecture handle the interaction with external systems and manage the technical details that support the application's functionality. These layers are more susceptible to change and are designed to be easily modifiable without impacting the inner layers.
Interface Adapters Layer: This layer sits between the Use Cases layer and the external systems or frameworks. It translates data between the format most convenient for the use cases and the format required by external agencies such a...
