PUBLIC MARKS from "Xavier Lacot" with tags w3c & rdf

The Resource Description Framework RDF allows the users to describe Web documents and resources from the real world—people, organisations, things—in a computer-processable way. Publishing such descriptions on the Web creates the Semantic Web. URIs (Uniform Resource Identifiers) are very important, forming the link between RDF and the Web. This document presents guidelines for their effective use. It discusses two strategies, called 303 URIs and hash URIs. It gives pointers to several Web sites that use these solutions, and briefly discusses why several other proposals have problems.

The XHTML Role Attribute defined in this specification allows the author to annotate XML Languages with machine-extractable semantic information about the purpose of an element.

A vocabulary for representing latitude, longitude and altitude information in the WGS84 geodetic reference datum.