Keyphrases
- semantic data models
- functional dependencies
- conceptual modeling
- programming language
- er model
- query language
- formal specification
- data model
- formal semantics
- data modeling
- entity relationship
- general purpose
- relational model
- conceptual model
- conceptual schema
- integrity constraints
- databases
- normal form
- object oriented
- domain knowledge
- database
- knowledge representation
- information systems