Resource Discovery ? RDF
"AltaVista" Metadata
<META NAME="Description" CONTENT="…">
Dublin Core
- Need for common vocabulary for finding resources
- DC.Creator, DC.Date, etc.
- Need for structured metadata & naming schemes led to RDF
<rdf:RDF xmlns:rdf="http://www.w3.org/TR/.." xmlns:dc="http://purl.org/dc/..">
<rdf:Description RDF:HREF="page.html">
<dc:Creator>John Smith</dc:Creator>
<dc:Title>John’s Home Page</dc:Title>
RDF
- Addresses multiplicity of incompatible metadata standards
- Provides metadata framework