Clean Architecture Software Designe pattern
Clean Architecture is a software design principle that promotes the separation of concerns and modularity in application development.
It aims to create a well-organised and maintainable codebase by organising code into layers with clear dependencies and boundaries.
its benefits in building scalable and maintainable web applications.
it can be applied to various programming languages and frameworks. i.e ASP DOT NET , Python etc
Why is it chosen ?
Clean architecture is a software architecture that helps us to keep an entire application code under control.
Separation of Concerns:
Clean Architecture promotes a clear separation of concerns between different parts of an application. It divides the application into layers with distinct responsibilities, such as the domain layer, application layer, and infrastructure layer. This separation makes the codebase more maintainable and testable.
Testability:
The architecture's focus on separating concerns makes it easier to write unit tests for individual components of the application. Testing the core business logic (in the domain layer) is straightforward because it doesn't rely on external dependencies.
Flexibility:
Clean Architecture provides flexibility in choosing technology stacks for different parts of the application. For example, you can use a different database or user interface framework without rewriting the core logic.
Readability and Understandability:
The architecture's clean and modular structure improves code readability and understandability.
Cross-Platform Development:
Clean Architecture is suitable for cross-platform development. You can share the core business logic across multiple platforms, such as web, mobile, and desktop.
Collaboration and Teamwork:
The architectural pattern encourages collaboration among development teams and makes it easier to work on different parts of the application
Layers in Clean Architecture:
Clean Architecture divides a software system into distinct layers, each with its own specific responsibilities.
These layers are designed to promote separation of concerns, maintainability, testability, and flexibility.
Core/Domain Layer:
At the center of the architecture is the core or domain layer. This layer contains the most critical and essential business logic of the application.
Responsibilities include defining domain models, entities, value objects, business rules, and use cases that represent the core functionality of the application.
The domain layer should be independent of external frameworks, libraries, and technologies.
Application Layer (Use Cases):
The application layer is responsible for orchestrating the application's use cases.
It acts as a bridge between the core/domain layer and the interface adapters.
This layer contains application-specific business logic, such as handling user input, validation, and coordinating interactions between different parts of the system.
Use cases (application services) encapsulate the high-level operations of the application.
Interface Adapters Layer:
The interface adapters layer is responsible for communication with external systems, including user interfaces (UI), databases, web services, and other I/O devices.
It adapts data from the application layer to a format suitable for external systems and vice versa.
Interface adapters include presenters, controllers, gateways, and data mappers.
Frameworks and Drivers:
The outermost layer, the frameworks and drivers layer, contains the technical implementation details of the application.
It includes UI frameworks (web, mobile, desktop), databases, external services, and other technology-specific components.
This layer connects the application to the external world and provides the necessary infrastructure to run the application.
it can be applied to various programming languages and frameworks. i.e ASP DOT NET , Python etc
Clean architecture is a software architecture that helps us to keep an entire application code under control.
Separation of Concerns:
Clean Architecture promotes a clear separation of concerns between different parts of an application. It divides the application into layers with distinct responsibilities, such as the domain layer, application layer, and infrastructure layer. This separation makes the codebase more maintainable and testable.
Testability:
The architecture's focus on separating concerns makes it easier to write unit tests for individual components of the application. Testing the core business logic (in the domain layer) is straightforward because it doesn't rely on external dependencies.
Flexibility:
Clean Architecture provides flexibility in choosing technology stacks for different parts of the application. For example, you can use a different database or user interface framework without rewriting the core logic.
Readability and Understandability:
The architecture's clean and modular structure improves code readability and understandability.
Cross-Platform Development:
Clean Architecture is suitable for cross-platform development. You can share the core business logic across multiple platforms, such as web, mobile, and desktop.
Collaboration and Teamwork:
The architectural pattern encourages collaboration among development teams and makes it easier to work on different parts of the application
Layers in Clean Architecture:
Clean Architecture divides a software system into distinct layers, each with its own specific responsibilities.
These layers are designed to promote separation of concerns, maintainability, testability, and flexibility.
Core/Domain Layer:
At the center of the architecture is the core or domain layer. This layer contains the most critical and essential business logic of the application.
Responsibilities include defining domain models, entities, value objects, business rules, and use cases that represent the core functionality of the application.
The domain layer should be independent of external frameworks, libraries, and technologies.
Application Layer (Use Cases):
The application layer is responsible for orchestrating the application's use cases.
It acts as a bridge between the core/domain layer and the interface adapters.
This layer contains application-specific business logic, such as handling user input, validation, and coordinating interactions between different parts of the system.
Use cases (application services) encapsulate the high-level operations of the application.
Interface Adapters Layer:
The interface adapters layer is responsible for communication with external systems, including user interfaces (UI), databases, web services, and other I/O devices.
It adapts data from the application layer to a format suitable for external systems and vice versa.
Interface adapters include presenters, controllers, gateways, and data mappers.
Frameworks and Drivers:
The outermost layer, the frameworks and drivers layer, contains the technical implementation details of the application.
It includes UI frameworks (web, mobile, desktop), databases, external services, and other technology-specific components.
This layer connects the application to the external world and provides the necessary infrastructure to run the application.