The ubiquity of low-cost, sensor-rich, mobile computing devices has meant that designing context-aware systems is now a common concern in Information Architecture. Because of how prevalent context-aware systems have become, the way in which practitioners design context-aware systems is of great importance. While design frameworks and models have been proposed for context-aware computing systems...

Resources and services are accessible in pervasive computing environments from anywhere and at any time. Also, due to ever-changing nature of such environments, the identity of users is unknown. However, users must be able to access the required resources based on their contexts. These and other similar complexities necessitate dynamic and context-aware access control models for such environmen...

Access control in open and dynamic Pervasive Computing Environments (PCEs) is a very complex mechanism and encompasses various new requirements. In fact, in such environments, context information should be used in access control decision process; however, it is not applicable to gather all context information completely and accurately all the time. Thus, a suitable access control model for PCEs...