RDF/XMLRDF/XML is a syntax, defined by the W3C, to express (i.e. serialize) an RDF graph as an XML document. RDF/XML is sometimes misleadingly called simply
Embedded RDFGRDDL, a way to extract (annotated) data out of XHTML and XML documents and transform it into an RDF graph Microdata (HTML), another approach at embedding
RDF SchemaRDF Schema (Resource Description Framework Schema, variously abbreviated as RDFS, RDF(S), RDF-S, or RDF/S) is a set of classes with certain properties
Resource Description Framework"RDF 1.1" documents: "RDF 1.1 Primer", "RDF 1.1 Concepts and Abstract Syntax", "RDF 1.1 XML Syntax", "RDF 1.1 Semantics", "RDF Schema 1.1", and "RDF 1
RDFaXHTML and various XML-based document types for embedding rich metadata within Web documents. The Resource Description Framework (RDF) data-model mapping