Keyphrases
- xml documents
- xml data
- markup language
- data model
- data integration
- xml databases
- xml format
- xml schema
- databases
- object oriented
- xpath queries
- metadata
- information hiding
- semi structured
- xml queries
- data encryption
- labeling scheme
- xml retrieval
- encryption algorithms
- data exchange
- relational databases
- relational data
- data types
- data warehouse
- data protection
- query language
- document centric
- database