Resource Description Framework

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The Resource Description Framework (RDF) is a standard for data interchange on the Web. All things described by RDF are called resources and can be noted as triples in the format:

 <Subject> <Predicate> <Object>

where <Subject> represents the resource to be described, <Predicate> a type of property relevant to this resource, and <Object> can be data or another resource.


RDF has features that facilitate data merging even if the underlying schemas differ, and it specifically supports the evolution of schemas over time without requiring all the data consumers to be changed.

RDF extends the linking structure of the Web to use URIs to name the relationship between things as well as the two ends of the link (this is usually referred to as a “triple”). Using this simple model, it allows structured and semi-structured data to be mixed, exposed, and shared across different applications.

RDF can be expressed in RDF/XML, Turtle, N-Triples or JSON.

The current version is RDF 1.1.

Source: www.w3.org/2001/sw/wiki/RDF


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