Proceedings of the 16th ACM symposium on Access control models and technologies

It is our great pleasure to welcome you to the 16th ACM Symposium on Access Control Models and Technologies (SACMAT 2011). This year's symposium continues its tradition of being the premier forum for presentation of research results on leading edge issues of access control, including models, systems, applications, and theory. The call for papers attracted 52 submissions from Asia, Canada, Europe, Africa, and the United States. The program committee accepted 16 papers that cover a variety of topics, including next generation access control models, engineering and analysis techniques for access control policies and models, and security administration. New this year in the program is a demo session with five demos covering topics such as security visualization, access control federation and social networks. In addition the program includes a panel on usability of access control models and systems from the perspective of the nonspecialist, and keynote talks by Professors David Basin and Jean-Pierre Seifert. We hope that these proceedings will serve as a valuable reference for security researchers and developers.