Keyphrases
- databases
- relational databases
- data model
- database
- xml documents
- data integration
- peer to peer
- xml data
- relational database systems
- relational schema
- data retrieval
- metadata
- database applications
- data exchange
- markup language
- xml schema
- data sources
- xml queries
- object oriented
- data formats
- resource discovery
- xml databases
- software maintenance
- knowledge discovery
- keywords
- web databases
- overlay network
- semi structured data
- heterogeneous data sources
- database objects
- data transformation
- data management
- xml format
- scalable distributed