RDFa

RDFa is a set of attributes that can be used to carry metadata in an XML language. RDFa was first proposed by Mark Birbeck in the form of a W3C note entitled XHTML and RDF. The current version of the standards was released in April 2013.

About RDFa in brief

RDFa is a set of attributes that can be used to carry metadata in an XML language. The RDF data-model mapping enables its use for embedding RDF subject-predicate-object expressions within XHTML documents. It also enables the extraction of RDF model triples by compliant user agents. RDFa was first proposed by Mark Birbeck in the form of a W3C note entitled XHTML and RDF, which was then presented to the Semantic Web Interest Group at the W 3C’s 2004 Technical Plenary. In October 2008 RDFA 1. 0 reached recommendation status. In June 2012, RDF a 1. 1 reached recommendationstatus. There are five principles of metadata that are met by R DFa.

There is a growing number of better tools for better usage of R DFia vocabularies. The simplified approach to semantically annotate items in webpages was greatly encouraged by the HTML+R DFia standards of 2013. As of 2013, the standards were vented on the web, so vats of information are available to assistive technology as more information is available to help users with the task of annotating web pages. The current version of the standards was released in April 2013. It is the first generic R DFIA standard, now the \”R DFIA Core 1.1\” is in the Third Edition.