Mastering Microservices with Java - Third Edition

Multilayered architecture

Multilayered architecture is a common solution for DDD. It contains four layers:

1. A presentation layer or user interface (UI).
2. An application layer.
3. A domain layer.
4. An infrastructure layer

The multilayered architecture can be seen in the following diagram as follows:

Layered architecture

You can see in the preceding diagram that only the Domain layer is responsible for the domain model, and the other layers relate to other components, such as UI, application logic, and so on. This layered architecture is very important. It keeps domain-related code separate from other layers.

In multilayered architecture, each ...