Keyphrases
- denotational semantics
- programming language
- xml documents
- xml data
- data model
- object oriented
- query language
- abstract data types
- operational semantics
- xml schema
- databases
- markup language
- data types
- relational databases
- object oriented databases
- xml format
- database
- data exchange
- xml retrieval
- metadata
- data integration
- general purpose
- knowledge representation
- data mining
- data structure
- relational database systems
- software engineering
- formal semantics