Keyphrases
- metadata
- open standards
- xml documents
- xml data
- topic maps
- relational databases
- widely accepted
- data integration
- relational schema
- data model
- markup language
- data interchange
- data exchange
- databases
- data representation
- xml retrieval
- xml databases
- relational data
- extensible markup language
- object oriented
- semi structured data
- semistructured data
- commercial and open source
- keyword search
- xml queries
- object oriented databases
- structured data
- building blocks
- open source
- website
- neural network