The JSF is a framework defined as a standard specification in JaveEE to develop a user interface for Web applications. The JSF aims at making the development of Web applications more efficient. A Web application developed by using the JSF is called a JSF application.

The JSF distinctly differentiates between Model class (business logic) development and View class (input and output windows) development based on the MVC model, thereby simplifying the division of work among JSP developers. Developers can focus on their own work, which in turn improves the development efficiency.

With Application Server, you can use the Bean Validation functionality to simplify the process for validating the values entered in a JSF application.

For details on using Bean Validation, see 10. Using Bean Validation with Application Server in the uCosminexus Application Server Common Container Functionality Guide.