Keyphrases
- access control
- cooperative
- fine grained
- dynamic access control
- data security
- security policies
- role based access control
- identity management
- multi agent systems
- security requirements
- role based access control model
- security mechanisms
- access control policies
- database security
- access control models
- security architecture
- grid computing
- security model
- databases
- grid services
- trust relationships
- rbac model
- multi agent