Towards a unified approach for expert and database systems
Proceedings from the first international workshop on Expert database systems
The computer-based patient record: an essential technology for health care
The computer-based patient record: an essential technology for health care
An approach to authorization modeling in object-oriented database systems
Data & Knowledge Engineering
Relational Database: Writings, 1989-1991
Relational Database: Writings, 1989-1991
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Authorisation is a compulsory function in information systems that contain patient data. The proposed authorisation model is a refinement of a role-based content-dependent authorisation model. The access permissions are inferred from authorisation rules based on the role of the health care consultant, the association of the consultant with the patient, the security level and the state of the information object within the life-cycle. The design of the system is based on a three-level access control, and a combination of the existing information system with an expert database system.