Keyphrases
- metadata
- digital libraries
- application programming interface
- multimedia
- dublin core
- source code
- metadata management
- high level
- databases
- metadata elements
- learning objects
- learning resources
- search tools
- multimedia content
- metadata extraction
- open access
- semantic information
- structured data
- open source
- topic maps
- semantic content
- resource discovery
- google maps
- database
- petri net
- metadata standards
- metadata schema
- search engine
- metadata creation