I've been writing code using OERA for a few years now, and still can't quite figure out what piece runs on the DB Server, vs the AppServer, vs the Web Client.  And if not in a web client environment...?  I'm still fishing around for the docs since we don't seem to have any here in spite of my numerous requests, and the various links in these old threads don't seem to work anymore.  Help?  I think I need some visual aids here.