Classification
Types of schemes
- universal scheme (DDC, UDC) - example: CyberDewey
- national scheme (BC, SAB) - example: DutchESS
- subject specific scheme (Ei, NLM) - example: EELS,
Finnish Virtual library
- “home grown” (Yahoo!)
Main advantages:
- good basis for browsing structure
- multilingual access possible
- interoperability (cross browsing)