The Semantic Web is built upon the W3C Semantic Web Activity Specifications and the Open Web Platform.

Core Semantic Web Standards

The core Semantic Web standards, allowing RDF structured information to be read, written and queried from the Web of Data, are arranged in the list below with those above (more or less) depending on standards beneath them. HTML5 has been included since it is a key ingredient for building web applications, especially those using RDFa.