RDFa Use Cases: Scenarios for Embedding RDF in HTML

Current web pages, written in HTML, contain significant inherent structured data. When publishers can express this data more completely, and when tools can read it, a new world of user functionality becomes available, letting users transfer structured data between applications and web sites. An event on a web page can be directly imported into a user's desktop calendar. A license on a document can be detected so that the user is informed of his rights automatically. A photo's creator, camera setting information, resolution, and topic can be published as easily as the original photo itself, enabling structured search and sharing. RDFa is a syntax for expressing RDF structured data in HTML. This document provides use case scenarios for RDFa. An introduction to implementing RDFa is provided in the RDFa Primer, while the details of the syntax are explained in the RDFa Syntax (to be published).