Hi Norbert, So do you want to replace the UIs? or the logic that handle the task lifecycle? If you want to create your own GWT or JSF interface you can use the gwt-console-server rest API to interact with the engine or you can just use the default Human Task APIS to build your UIs. The current jBPM console is written in GWT, so you can extend it or make it better to not re write everything from the scratch. The project is open to contirbutions so if you have time and the knowledge to write GWT please help the project. Cheers On Wed, Jul 6, 2011 at 6:12 PM, northbright <northbright(a)gmail.com&gt; wrote: -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jbug.com.ar - Salatino "Salaboy" Mauricio -