Security for Object-Oriented Systems: An Editorial Overview / B. Thuraisingham, R. Sandhu and T. C. Ting --; Integrating Object Oriented Technology and Security in Medical Database Systems / G. Pangalos --; The Security Facilities of PCTE / B. Bird --; A Base for Secure Object Oriented Environments / K. Vosseberg, P. Brossler and J. L. Keedy --; An Object-Oriented Application Security Framework / J. A. Talvitie --; Multilevel Security in Object-Oriented Databases / N. Boulahia-Cuppens, F. Cuppens, A. Gabillon and K. Yazdanian --; Object-Oriented Security in the Trusted Mach Operating System / S. Gupta --; Enforcing Mandatory Access Control in Object Bases / E. Bertino, S. Jajodia and P. Samarati --; Information Flow Control in Object-Oriented Programs / C. Bryce --; A Method-Based Authorization Model for Object-Oriented Databases / E. B. Fernandez, M. M. Larrondo-Petrie and E. Gudes. The Factors that Influence Apropos Security Approaches for the Object-Oriented Paradigm / S. A. Demurjian and T. C. Ting --; An Access Control Model for a Parallel Object-Based Programming Language / C. Bryce --; Research Issues in Discretionary Authorizations for Object Bases / E. Bertino and P. Samarati --; Using Object Modeling Techniques to Design MLS Data Models / M. H. Kang, O. Costich and J. N. Froscher --; Can We Do Without Monotonically Non-Decreasing Levels in Class Hierarchies? / W. R. Herndon --; Concurrency, Synchronization, and Scheduling to Support High-Assurance Write-Up in Multilevel Object-Based Computing / R. K. Thomas and R. S. Sandhu --; Secure Database Interoperation via Dynamic Addition of Roles / V. E. Jones and M. Winslett.