Keyphrases
- access control
- fine grained
- dynamic access control
- data security
- access control models
- security policies
- access control policies
- xml documents
- security model
- role based access control
- metadata
- database security
- xml databases
- access control systems
- identity management
- security architecture
- rbac model
- databases
- security requirements
- xml schema
- data model
- relational databases
- security mechanisms
- access control mechanism
- role based access control model
- database
- keyword search
- data integration
- usage control