Keyphrases
- relational schema
- relational data
- functional dependencies
- entity relationship
- relational databases
- relational database systems
- normal form
- relational model
- xml schema
- object oriented
- schema mappings
- transformation rules
- data model
- database schema
- conceptual schema
- database design
- xml documents
- xml data
- incomplete information
- data mining
- data modeling
- domain knowledge