Keyphrases
- multidatabase systems
- query optimization
- web services
- metadata
- database systems
- transaction management
- heterogeneous database systems
- semantic web
- information systems
- multidatabase environment
- multiple autonomous
- ontology mapping
- query processing
- concurrency control
- interoperability issues
- distributed environment
- heterogeneous systems
- information sharing
- fine grained
- knowledge management
- knowledge representation
- semantic technologies
- multiple databases
- expert systems
- search engine