LayManSys Spezification: Dublin Core Meta Data in RDF-Files

The elements in this namespace are used to include meta data about the web document as well as the entire website. Most of this elements are required for generating the HTML header.

XML Namespace Information

XML Namespace
Preferred Namespace Prefix


All elements listed here have no attributes, they only contain character data between the opening and closing tag, except Subject which contains an rdf:Bag of rdf:li items. Some elements may be specfied in the global etc/laymansys.rdf file so that they are valid for every document. They still can be overwritten on a per-document base using the documents RDF file.

All elements are required to be either in the global or in the documents RDF file, except the ones noted specially.

For more information about the elements, see the DCMI Metadata Terms and the examples in the RDF/XML Syntax Specification.


This is the date when the document has been last modified. It has to be in a common Date and Time Format.


The description is a very important part of each documents RDF file because it describes briefly the document contents. It should be only a few sentences, so you do not need to give the complete abstract here.


This is the documents MIME type, which will be sent as HTTP Content-Type header. In most cases you will use something like text/html or application/xhtml+xml.


This is the documents language in a format conforming to the RFCs 1766 and 3066, e.g. de-DE or en-US.


This element contains all publishers of the document, so in most cases your name will be here, too.


This is the copyright statement for document. Although it is not used in the HTML header, the default implementation of writeFooter uses it.


A documents subject is treated as a bag of keywords.


This is also very important, it is the documents title.


The documents type will be most likely World Wide Web Home Page.