Keyphrases
- access control
- web services
- rbac model
- data security
- access control models
- fine grained
- web applications
- dynamic access control
- security enforcement
- identity management
- protection schemes
- security policies
- service providers
- security model
- role based access control
- role based access control model
- access control policies
- security mechanisms
- service composition
- service oriented
- database security
- security architecture
- usage control
- spatial data
- databases
- database
- loosely coupled