  Personal health record (PHR) management is under new scrutiny as private
companies move into the market and government agencies actively address
perceived health care distribution inequalities and inefficiencies. Current
systems are coarse-grained and provide consumers very little actual control
over their data. Herein, we propose an alternative system for managing the use
of healthcare information. This novel system is finer grained, allows for data
mining and repackaging, and gives users more control over their data, allowing
it to be distributed to their specifications. In this paper, we outline the
characteristics of such a system in different contexts, present relevant
background information and research leading to the system design, and cover
specific usage scenarios supported by this system that are difficult to control
using simpler access control strategies.
