The JAXFront HTML Renderer is a J2EE compliant AJAX technology. The renderer runs within a servlet container on the server side.
The client-server communication is realized with AJAX technology (asynchronous JavaScript/XML). Instead of having synchronous blocking HTTP request, AJAX uses asynchronous none-blocking HTP request. AJAX is communicating with browser embedded AJAX components. Asynchronous calls allows the user to interact with the frontend anytime and is not blocked by calling server roundtrips. Most UI updates occur through asynchronous updating of the HTML DOM with local JavaScripts.