Keyphrases
- xml documents
- markup language
- xml data
- xml databases
- xml queries
- xml schema
- metadata
- relational databases
- data model
- data integration
- st century
- labeling scheme
- relational data
- data types
- data transformation
- extensible markup language
- xpath queries
- object oriented
- query language
- databases
- document structure
- xml format
- loosely structured
- document centric
- relational database management systems
- data representation
- object oriented databases
- semi structured
- data exchange
- structured data
- neural network