The Resource Description Framework (RDF) is a standard model used to describe information about resources on the web. It allows data to be structured in a way that machines can understand, using a simple format of subject-predicate-object triples. For example, in RDF, you might say that Alice is a friend of Bob, clearly defining the relationship between these entities. RDF is essential for the development of the Semantic Web, where data can be linked and shared across different platforms. By using RDF, developers can create rich, interconnected datasets that enhance search capabilities and improve data interoperability, making it easier for users to find relevant information.