Application Layer

Application Layer:

• The Application Layer acts as a bridge between the Presentation and Domain Layers.

• It orchestrates business logic, coordinating domain objects to execute specific tasks and implement use cases.

• Key building blocks of the Application Layer include:

  • Application Services:

    • Application Services handle use cases and workflows by coordinating domain logic.

    • They don’t contain business rules but serve as orchestrators, making calls to domain services and entities.

  • Data Transfer Objects (DTOs):

    • DTOs are simple objects used to transfer data between layers.

    • They encapsulate data for requests and responses without exposing domain entities directly, ensuring loose coupling between layers.

  • Unit of Work:

    • The Unit of Work manages transactions by tracking changes to multiple entities and ensuring they are persisted together.

    • It ensures consistency by coordinating the commit or rollback of operations within a single transaction.