Access control technology holds a central role in achieving trustworthy management of personally identifiable information in modern information systems. In this article, a privacy-sensitive model that extends Role-Based Access Control (RBAC) to provide privacy protection through fine-grained and just-in-time access control in Web information systems is proposed. Moreover, easy and effective mapping of corresponding components is recognized as an important factor for succeeding in matching security and privacy objectives. Such a process is proposed to be accomplished by capturing and modeling privacy requirements in the early stages of information system development. Therefore, a methodology for deploying the mechanisms of an access control system conforming to the proposed Privacy Improved Role-Based Access Control (PIRBAC) model is presented. To illustrate the application of the proposed methodology, an application example in the healthcare domain is described.
Better client OFF time prediction to improve performance in web information systems
