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A Uniform Resource Identifier (URI), formerly Universal Resource Identifier, is a unique sequence of characters that identifies an abstract or physical resource, [1] such as resources on a webpage, mail address, phone number, [2] books, real-world objects such as people and places, concepts. [3]
A Uniform Resource Name (URN) is a Uniform Resource Identifier (URI) that uses the urn scheme.URNs are globally unique persistent identifiers assigned within defined namespaces so they will be available for a long period of time, even after the resource which they identify ceases to exist or becomes unavailable. [1]
The uniform interface constraint is fundamental to the design of any RESTful system. [1] It simplifies and decouples the architecture, which enables each part to evolve independently. The four constraints for this uniform interface are: Resource identification in requests: Individual resources are identified in requests using URIs. The ...
A Uniform Resource Identifier helps identify a source without ambiguity. Many URI schemes are registered with the IANA; however, there exist many unofficial URI schemes as well. Mobile deep links are one example of a class of unofficial URI schemes that allow for linking directly to a specific location in a mobile app.
A web resource is any identifiable resource (digital, physical, or abstract) present on or connected to the World Wide Web. [1] [2] [3] Resources are identified using Uniform Resource Identifiers (URIs). [1] [4] In the Semantic Web, web resources and their semantic properties are described using the Resource Description Framework (RDF). [5]
In IETF specifications, a Uniform Resource Characteristic (URC) is a string of characters representing the metadata of a Uniform Resource Identifier (URI), a string identifying a Web resource. URC metadata was envisioned to include sufficient information to support persistent identifiers , such as mapping a Uniform Resource Name (URN) to a ...
[3] [4] [5] Webhooks are server-side web APIs that take input as a Uniform Resource Identifier (URI) that is designed to be used like a remote named pipe or a type of callback such that the server acts as a client to dereference the provided URI and trigger an event on another server which handles this event thus providing a type of peer-to ...
The subject of an RDF statement is either a uniform resource identifier (URI) or a blank node, both of which denote resources. Resources indicated by blank nodes are called anonymous resources. They are not directly identifiable from the RDF statement. The predicate is a URI which also indicates a resource, representing a relationship.