What is RBAC and how does it affect EBS?

In today's entry of our spotlight, comes a guest author detailing Role Based Access Control (RBAC) which shifts the access paradigm from our traditional (old) ways of directly assigning responsibilities directly to user accounts to a better (new) way of using responsibility assignments in conjunction with grant assignments as another layer of security.  It may surprise you to know that this isn't just for R12 either!  Plain old R11 can utilize this as well so give the whitepaper a read, if only so you are sure of what RBAC is and is not.