Developing Enterprise JavaBeans
Java EE applications are usually considered to be three-tiered applications, as they are distributed over three layers.
This diagram depicts a view of the three-layer architecture with the associated components. Here's a synthetic explanation:
- Presentation Tier: Built with dynamic pages and application clients, this layer is able to generate the user interface of the application.
- Business Tier: Also known as the middle tier, this layer contains the business logic of the application. All the business logic is centralized into this tier as opposed to client/server applications where the business logic is scattered between ...