The vCard ontology is a standard way of describing contact details for people ... that is the information one might find in a 'visiting card'. It arose as an emergent standard for interchange between contact management systems and as a web microformat. The RDF form is used extensively in semantic web ontologies.
Used on page 396
Links:
W3C: vCard Ontology - for describing People and Organizations- lov.linkeddata.es: An Ontology for vCards (vcard)
- Wikipedia: vCard