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The Internationalized Resource Identifier (IRI) is a superset of the Uniform Resource Identifier (URI), which expands the set of characters to refer to a resource from a subset of US-ASCII to the Universal Character Set (Unicode/ISO 10646). So basically, an IRI is the internationalized version of a Uniform Resource Identifier. A Uniform Resource Identifier (URI), is an Internet protocol element consisting of a short string of characters that conform to a certain syntax. ... There are 95 printable ASCII characters, numbered 32 to 126. ... The Universal Character Set is a character encoding that is defined by the international standard ISO/IEC 10646. ... A Uniform Resource Identifier (URI), is an Internet protocol element consisting of a short string of characters that conform to a certain syntax. ...
It is defined by RFC 3987[1]. RFC may refer to Reconstruction Finance Corporation - Hoovers attempt to stem the Great Depression Royal Flying Corps - the over-land air arm of the British military during most of World War I Request For Change - ITIL terminology in the IT Service Management arena to describe a request to Change...
XRI (eXtensible Resource Identifier) is a URI-compatible scheme and resolution protocol for abstract identifiers developed by the XRI Technical Committee at OASIS. The goal of XRIs is to provide a universal format for identifiers that are domain-, location-, application-, and transport-independent, so they can be shared across any...
A Uniform ResourceIdentifier (URI), is a short string of characters used to identify or name a resource.
A Uniform Resource Locator (URL) is a URI that, in addition to identifying a resource, provides means of acting upon or obtaining a representation of the resource by describing its primary access mechanism or network "location".
A Uniform Resource Name (URN) is a URI that identifies a resource by name in a particular namespace.