UAQ: a framework for user authorization query processing in RBAC extended with hybrid hierarchy and constraints.

Yue Zhang James B. D. Joshi

Published in: SACMAT (2008)

Keyphrases

query processing
access control
end users
main contribution
role based access control
user interface
query optimization
database
spatial constraints
rbac model
databases
probabilistic model
distributed systems
user profiles
user queries
user defined constraints