Abstract
Recent trends in healthcare delivery have led to a shift towards a patient-centric care model which depends on the evolution of information access and tools beyond Electronic Health Record (EHR) systems controlled by healthcare providers to Personal Health Record (PHR) systems whose architectures are based on the fundamental assumptions that the complete records are centrally stored and that each patient retains authority over access to any portion of his/her record. PHRs offer significant potential to stimulate transformational changes in emergency healthcare delivery since they can provide a complete picture of a person’s healthcare record when and where needed. However, a security issue of prominent importance arises which is concerned with the process of granting (revoking) authorization to (from) healthcare professionals without the patient’s involvement. This paper presents an approach to automating the authorization propagation process in PHR systems by means of context-aware technology, which is used to regulate user access to data via a fine-grained access control mechanism.
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