After deploying a service application into WebSphere ESB, you can manage the runtime properties of the application, configure resources needed by the application, and monitor the performance of the application.
Administrators can deploy mediation modules (as SCA modules) into the server and bus environment. You can view the modules that you have deployed, and monitor that requests are being processed correctly. You can start or stop mediation modules, and can administer modules in other ways; for example, to change the configuration of a module, to stop or update the module, and otherwise manage its activity. You can also make changes to the SCA imports of a mediation module; for example, to redirect one module to another module. This allows a module to invoke different service providers or process service requests and responses in different ways without having to rebuild and redeploy the module.
This is most appropriate for an administrator interested in deploying and managing mediation modules as service applications. For more information, see Managing service applications.