URL Rewriting — Replace ugly URLs: “/faces/page.jsf” with pretty, SEO-friendly, human URLS: “/optimized/page/”; The client browser never sees your original URLs, even in the source-HTML Dynamic view IDs — Now with dynamic view ID mapping for URLs (through El method expressions,) you can show different views based on run-time conditions, effectively de-coupling the URL from the JSF view. Page-load actions — Call one or more action-methods, at one or more phases, before rendering a view. Managed parameter parsing — HTTP parameters parsed from URLs are stored in managed beans, simply get a reference to your parameter bean for easy access from other Java classes. Navigation by ID — Define your page IDs in one place, reference them easily in action-methods and components, using standard JSF navigation techniques. Integrated validation — For URL and query-parameters, able to re-use existing JSF validator objects. Easy to configure — Requires absolutely minimal configuration; may be enabled using XML or annotations.