ABSTRACT. In this position paper we first describe a classic logic programming approach to the solution of (a portion) of the challenge problem involving RBAC. We use the XSB Tabled Prolog Language and system \cite{xsbmanual-07}, with ideas from Transaction Logic \cite{trans-tcs94xs}. Then we discuss issues that involve what would be required to use such an implementation in a real-world application requiring RBAC functionality. And finally we raise issues about the possible design of a general procedural application programming interface to logic (programming) systems. In analogy to ODBC (Open Data Base Connectivity), what might an OLSC (Open Logic System Connectivity) look like?