The ICEfaces Framework is an extension to the standard JSF framework, with the key difference in ICEfaces relating to the rendering phase. In standard JSF, the render phase produces new markup for the current application state, and delivers that to the browser, where a full page refresh occurs. With the ICEfaces framework, rendering occurs into a server-side DOM and only incremental changes to the DOM are delivered to the browser and reassembled with a lightweight Ajax Bridge. This results in seamless, smooth update of the browser page with only the necessary presentation elements being rerendered. The ICEfaces Framework also provides complete run-time management ofAjax Push using the server-initiated rendering APIs, and integrates that mechanism seamlessly with the JSF lifecycle.