The levels in the Semantic Web ...
- Basic role played by XML
- RDF and RDF Schema describe Resources and their types
- Ontologic level:
- describes relationships between element types
- non information about computational usage of these relationships
- Digital signature:
- until now "coarse grained"
- "fine grained" can be used to authenticate ontologies, inferences, data
- Logical level:
- derive new knowledge from existing assertions
- present deductive systems are not interoperable
- a possibility: an universal language to represent demonstrations, that
can be exported on the web with their digital signature