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A model for context-sensitive usage control in healthcare information systems

Barriviera Rodolfo, Maziero Carlos

Annals of Computer Science and Information Systems

2017

Vol. 13

199--205

The secure management of access to patient information in medical and hospital environments is a relevant and widely debated problem. Although the electronic patient record is envisaged in the current legislation, it is still a promise to the Brazilian health reality. The aim of this work is to define a continuous access control model for patient's medical information, which considers contextual information and that can be implemented in large scale environments, such as computational clouds. A bibliographic study was conducted related to the computational area of access control, electronic and paper medical records, and on the current health legislation in Brazil. Subsequently, a qualitative research was conducted in the BHUs of the city of Londrina - Paran\'a (Brazil). The results presented a great lack of computerization, the use of paper charts, and the need for a computer model of access control that considers the aspects of a real medical-hospital environment. From the results obtained in this research, it was possible to elaborate a computational model of access control to the patient's electronic medical record for health information systems using the UCONabc access control model and the XACML architecture. A prototype of the proposed model was implemented. The experiments conducted and their results demonstrated the proposal's feasibility.