RDF is a directed graph composed of triple statements. An RDF graph statement is represented by: (1) a node for the subject, (2) an arc from subject to object, representing a predicate, and (3) a node for the object. Each of these parts can be identified by a Uniform Resource Identifier (URI). An object can also be a literal value.

Jul 19, 2009 · The RDF specification defines how URIs are used within RDF. Don't forget about form (and secondary uses), but by far the most important aspect to your URIs is that they are globally unique identifiers.

Feb 25, 2014 · RDF datasets are used to organize collections of RDF graphs, and comprise a default graph and zero or more named graphs. RDF 1.1 Concepts and Abstract Syntax also introduces key concepts and terminology, and discusses datatyping and the handling of fragment identifiers in IRIs within RDF graphs.

RDF identifies things using Web identifiers (URIs), and describes resources with properties and property values. Explanation of Resource, Property, and Property value: A Resource is anything that can have a URI, such as "https://www.w3schools.com/rdf" A Property is a Resource that has a name, such as "author" or "homepage"

The Web's Uniform Resource Identifier (URI) provides us with a way to uniquely identify anything we want to talk about in an RDF statement, and the Extensible Markup Language (XML) provides us with a format for representing and exchanging RDF statements.

RDF 1.2 Concepts introduces key concepts and terminology for RDF 1.2, discusses datatyping, and the handling of fragment identifiers in IRIs within RDF graphs. This document is part of the RDF 1.2 document suite. It is the central RDF 1.2 specification and …

rdf:resource sets the object URI of a statement, once again either absolute or relative. rdf:ID sets the subject URI, but it can only be within this document. An ID can also only be used once.

Apr 3, 2017 · URIRefs are what RDF 1.0 uses to identify things. RDF 1.0 was standardised at the same time the IETF were standardising Internationalized Resource Identifiers (IRIs). IRIs (colloquially) are URLs which allow non-ascii characters.

URIs are defined by RFC 3986 and IRIs in the companion RFC 3987 which gives the modifications necessary for the wider range of Unicode characters in URIs. URI schemes can add constraints on the URI syntax; for example, RFC 7230 defines the http and https shemes.

Mar 27, 2025 · The Resource Description Framework (RDF) is a framework for representing information in the Web. This document defines an abstract syntax (a data model) which serves to link all RDF-based languages and specifications. The abstract syntax has two key data structures: