Keyphrases
- xml documents
- xml data
- metadata
- markup language
- data model
- xml queries
- xml databases
- data transformation
- xml retrieval
- databases
- relational data
- xml schema
- encryption scheme
- semi structured data
- data exchange
- xml format
- extensible markup language
- document centric
- encryption algorithms
- key management
- query language
- labeling scheme
- relational database systems
- data integration
- relational databases
- digital signature
- information hiding
- xpath queries
- open standards
- data encryption
- object oriented