Friday, February 29, 2008

Multitiered application model

The Java EE platform uses a distributed multitiered application model for enterpriseapplications.

¦ Client-tier components run on the client machine.
¦ Web-tier components run on the Java EE server.
¦ Business-tier components run on the Java EE server.
¦ Enterprise information system (EIS)-tier software runs on the EIS server.

JavaEE multitiered applications are generally considered to be three-tiered applications becausethey are distributed over three locations: client machines, the Java EE server machine, and the database or legacy machines at the back end.


Client Machine--Client tier(Java applications or dynamic HTML pages)


v
JavaEE Server Machine--Web tier(JSP pages) +Business tier(Enterprice Beans)


v
Database server machine--EIS tier(database)

No comments: