You've now been introduced to the JBoss ESB actions, the building blocks of services. You should now know how to create your own custom actions, and how to make use of the extensive set of OOTB actions that JBoss provides. When you start designing your services and need to perform a specific action, the place to start is with the OOTB actions. You can save yourself a lot of time, and a lot of trouble too, as the OOTB actions have been tested and are fully documented.