This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Suppose you have a requirement to allow individual users create their own look and feel. Change screen and move things around the screen.
JSF allows a lot of component manipulation in the managed bean. So you could put logic in to check a user and then disable or hide components. But what about giving each users their own .CSS? Or changing layout?