Keyphrases
- metamodel
- access control models
- access control
- role based access control model
- privacy aware
- security issues
- database security
- development process
- software systems
- life cycle
- black box
- role based access control
- data model
- access control policies
- design patterns
- fine grained
- security mechanisms
- high level
- data security
- real world
- conflict resolution
- databases
- privacy preservation
- query language
- personal information
- knowledge management