Development Process in J2EE
It also describes development responsibilities as roles.
- Services and logic common to many enterprise applications (like transactions, security,
rdbms-access...) is provided as integral part of the J2EE platform by the J2EE Product
Provider.
- Application development in the narrow sense is done by the Application Component
Provider, the Application Assembler and the Deployer.
The component development process is only specified by its expected outcome components
like:
- Application Components used as Clients that appear to the User similar to native
application and are running on local virtual machines.
- Applets provide a more powerful user interface on the client than simple HTML, running
in a browser or specialized container. They are easier to administer and deploy.
- Web components are Servlets, JSP, Filter or other Java classes running in a
webcontainer. They are used to build up HTML or XML output of applications and can be used
to construct the middle tier.
- Enterprise JavaBeans (EJB) that can be used to model the business logic residing in an
application. They are running in a special EJB-Container offering transactions, high
availibility, scalability, life cycle managment, authentification etc.
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