Data and Applications Security Developments and Directions Dr. Bhavani Thuraisingham The University of Texas at Dallas Assignment #2: Inference and Privacy problems Given: September 23, 2009 Due: October 7, 2009

Problem #1 (i) Select either a military or healthcare application and specify various policies (i.e. security or privacy constraints) to illustrate the inference or privacy problems (ii) Show how a system may process the policies (i.e. constraints) in Part (i) during query, update and database design operation.

Problem #2 (i) Describe a military or healthcare example with policies (security or privacy) and show how conceptual structures/models may be used to represent the applications (ii) Show how a system could reason with the policies and the conceptual structures of (i) to determine security or privacy violations through inference.