Short for Resource Description Framework, RDF is a standard model for data interchange on the World Wide Web created by the W3C. RDF has features that allow data to be merged even if the underlying schemas are different. Additionally, RDF usually supports the evolution of differing schemas over time without requiring all them to be changed from the ground up.
How does it work?
The Resource Description Framework extends the linking structure between web pages by utilizing URIs to establish a relationship between them, as well as the both ends of a hyperlink. This method allows both structured and semi-structured data to be mixed, viewed, and shared across different applications. The links in this structure form labeled, easy-to-read graphs, where the graph's nodes represent the named link between two resources.