In traditional access control models like MAC, DAC, and RBAC, authorization decisions are determined according to identities of subjects and objects, which are authenticated by a ...
Role-based access control (RBAC) has been proven to be a flexible and useful access control model for information sharing in distributed collaborative environments. Permission-rol...
GPS-enabled mobile devices are a quickly growing market and users are starting to share their location information with each other through services such as Google Latitude. Locati...
Spatial organisation of information objects on a two or three dimensional plane or space has the advantage of revealing the connections between objects easily by spatial proximity...
The protection of personal health information has become a live issue in a number of countries including the USA, Canada, Britain and Germany. The debate has shown that there is w...