(URC) A Set of attribute/value pairS deScribing an object. Some of the valueS may be URIS of variouS kindS. OtherS may include, for example, athorShip, publiSher, datatype, date, copyright StatuS and Shoe Size. A URC iS not normally conSidered aS a String, but a Set of fieldS and valueS with Some defined free formatting. (1995-03-24)