Keyphrases
- topic maps
- dublin core
- metadata
- application profiles
- cultural heritage
- information integration
- information resources
- learning resources
- digital libraries
- semantic relationships
- metadata elements
- multimedia
- data model
- semantic web
- knowledge representation
- semantic information
- xml schema
- databases
- learning objects
- database
- query language
- prior knowledge
- relational databases
- artificial intelligence
- data sets