J2EE Integration

Java 2 Enterprise Edition collects together many APIs: Servlet, JSP, EJB, JavaMail, JMS, JTA, CORBA, JDBC, JAXP, JNDI, and adds some connection glue.
It also recommends that development be broken down into roles:
1. J2EE product provider: sells you the server, dbase system, etc.
2. Application component provider: You, the one who writes the servlets, xhtml, etc.
3. Application assembler: gets components in form appropriate for deployment. Sets up JNDI dependencies in web.xml.
4. Deployer: installs, configures, and executes the application. Satisfies JNDI dependencies.
5. System administrator: configures and administers the network infrastructure.
6. Tool provider: sells you the IDE, unit testing, etc.