For a comprehensive description of the development process and a sample, see the PDN article Building EJB Services.
See also:
Through changes the prlogging.xml file, you can obtain performance statistics on the execution of services. See Performance tool — Statistics for services.
Through changes to the prconfig.xml file, you can be alerted to unusually long service operations. See How to detect length service operations.
As an alternative to updating the prconfig.xml file, you can use Dynamic System Settings to configure your application. See Prconfig settings and classifications.