What is RDF?
- Effective use of metadata requires appropriate conventions
for: 
- semantics (defined by single disciplinary
communities)
 
- syntax (organization of data elements for automatic
processing)
 
- structure (formal constraint on the syntax)
 
 
- RDF: 
- basis for coding, exchanging and
reusing structured metadata
 
- allows interoperability among applications
exchanging machine-understandable information on the
web
 
 
- RDF is for the Semantic Web what HTML has been for the
web