Protocol for Web Description Resources
Encyclopedia
The Protocol for Web Description Resources (POWDER) is the W3C recommended method for describing web resources.
It specifies a protocol for publishing metadata
about Web resources using RDF
, OWL
, and HTTP
.
The initial working party was formed in February 2007. On 1 September 2009 POWDER became a W3C recommendation and the Working Group is now closed.
POWDER supersedes the previous W3C specification PICS
.
It specifies a protocol for publishing metadata
Metadata
The term metadata is an ambiguous term which is used for two fundamentally different concepts . Although the expression "data about data" is often used, it does not apply to both in the same way. Structural metadata, the design and specification of data structures, cannot be about data, because at...
about Web resources using RDF
Resource Description Framework
The Resource Description Framework is a family of World Wide Web Consortium specifications originally designed as a metadata data model...
, OWL
Web Ontology Language
The Web Ontology Language is a family of knowledge representation languages for authoring ontologies.The languages are characterised by formal semantics and RDF/XML-based serializations for the Semantic Web...
, and HTTP
Hypertext Transfer Protocol
The Hypertext Transfer Protocol is a networking protocol for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web....
.
The initial working party was formed in February 2007. On 1 September 2009 POWDER became a W3C recommendation and the Working Group is now closed.
POWDER supersedes the previous W3C specification PICS
Platform for Internet Content Selection
The Platform for Internet Content Selection is a specification created by W3C that uses metadata to label webpages to help parents and teachers control what children and students can access on the Internet. The W3C Protocol for Web Description Resources project integrates PICS concepts with RDF...
.