The Sun Java System Application Server Enterprise Edition 8.1 supports JavaServer Faces 1.1 technology. The JavaServer Faces technology consists of a set of server-side APIs that represent user-interface components that manage their state, event, handling, and input validation. The APIs also define page navigation and support internationalization and accessibility. You can add custom user-interface components with a JSP custom tag library.
While developing with JavaServer Faces technology, each member of a development team can focus on a single piece of the process. A simple programming model then links the pieces, resulting in a much more efficient and simpler development cycle.