I have some questions regarding these Orion-specific deployment descriptors that I can't seem to find much information on. It would be great if someone can give me some pointers. In doing CMP entity beans, somewhere one must bind the bean to a data source. Apparently this is in orion-ejb-jar.xml and orion-application.xml. Where do these files go? Do they sit along-side the standard descriptors in the JAR files (e.g. orion-ejb-jar.xml and ejb-jar.xml go together in the abc-ejb.jar file) ? If not, where? How can they be maintained as part of the source code? How do I tell Orion that I am using PostgreSQL as my database for entity beans? data-sources.xml doesn't seem to "ell Orion what type of database a data source is. How do I access the user authentication mechanism? There are "security adapters" in the J2EE reference implementation. The Orion API has a bunch of *Manager and *UserManager classes, but the documentation is very vague. Are these it? How do I use them? Lastly ... are there examples for any of these? An example is sometimes worth a thousand words.