Eclipse plugin
jPDL also includes a graphical designer tool. The designer is a graphical tool for authoring business processes. It's an eclipse plugin.
The most important feature of the graphical designer tool is that it includes support for both the business analyst as well as the technical developer. This enables a smooth transition from business process modeling to the practical implementation.
Installation
First of all, download Eclipse Ganymede from http://www.eclipse.org/ganymede/. Once you have installed the application, start it and will install the jBPM designed.
Go to Help → Software Updates... In Available Software tab, add a new site:
Location: http://download.jboss.org/jbosstools/updates/stable/
Now select jBPM jPDL Tools from the list and click on Install.. button. Eclipse should be restarted to finalize the plugin installation.