Searches, catalogs, privacy, intellectual property rights,
content rating, ...
- XML describes trees, but Web is a graph
- Extensible, generic metadata model (triples)
- RDF triples: subject (resource), predicate (property), object
(value)
-
Basic XML syntax
- Trust = metadata + digital signatures
- RDF schemas, basic vocabulary (e.g., data types)
- Later: logical operations, queries, ...
See the RDF Model
and Syntax, RDF
Schemas working drafts.
