An Improved Task-Role-Based Access Control on Hierarchical Object in G-CSCW
Chaoying He, Jiang Jie, Jun Chen, Gang Han · Wuhan Daxue xuebao. Xinxi kexue ban · 2006
An improved task-role-based access control model (X-TRBAC) for GIS-based computer supported cooperative work(G-CSCW) systems is presented.Two concepts are introduced: object hierarchy and operation hierarchy.On the basis two concepts,the rules for defining permissions is proposed.The experiments show that the method can simplify the definition of permissions,and it is more applicable for G-CSCW applications.