Application Model

The Java EE application model:

The business and presentation logic.
- Implemented by the developer
The standard system services.
- Provided by the Java EE platform
Enterprise application use Multitiered application model.
- client-tier components run on the client machine
- Web-tier components run on the Java EE server
- Enterprise information system(EIS)-tier software runs on the EIS server.
Java EE client is either:
- a web client or
- an application client