Keyphrases
- xml documents
- markup language
- xml data
- xml databases
- databases
- data integration
- metadata
- relational databases
- data exchange
- xml schema
- data mining query language
- data transformation
- xml queries
- topic maps
- object oriented databases
- semi structured
- object oriented
- data model
- xml retrieval
- xml format
- extensible markup language
- loosely structured
- data representation
- semistructured data
- document structure
- semi structured documents