Too good to be true! How does ICEFaces know what changed without any support from the object graph ? Does it manage the previous request's DOM to be able to indentify the changes ? Does it render the object graph into DOM and then does the comparision ? Is it a comparision by doing a full scan of DOM tree? If i have returned a value from a query (or intensive processing) in an bean getter will it get executed irrespective of the change ? (which itself is not a problem but to understand the behaviour, so that i can model app correctly) Any reference/document that explains how ICEFaces does incremental UI updates should be of great help in pushing this case forward in my company. Thanks. mani View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4044423#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...