Keyphrases
- xml schema
- xml documents
- regular expressions
- xml data
- data exchange
- object oriented
- conceptual model
- relational databases
- integrity constraints
- semi structured documents
- metadata
- model checking
- relational schema
- relational model
- markup language
- structured data
- context free grammars
- building blocks
- relational data
- decision making
- prior knowledge
- extensible markup language
- databases