RDF Site Summary 1.0 Modules: PRISM


Tony Hammond, Timo Hannay, Ben Lund
Nature Publishing Group


Latest Version: http://nurture.nature.com/rss/modules/mod_prism.html

DRAFT 0.2 2004-08-11



This RSS 1.0 module has been reviewed by the IDEAlliance PRISM Working Group and reflects the current PRISM specification, version 1.2. It is intended that revised versions of this module will be published as the PRISM specification is upgraded.

This module allows RSS 1.0 newsfeeds to make use of the basic PRISM metadata vocabulary.


Copyright 2003,2004 by the Authors.

Permission to use, copy, modify and distribute the RDF Site Summary 1.0 Specification and its accompanying documentation for any purpose and without fee is hereby granted in perpetuity, provided that the above copyright notice and this paragraph appear in all copies. The copyright holders make no representation about the suitability of the specification for any purpose. It is provided "as is" without expressed or implied warranty.

This copyright applies to the RDF Site Summary 1.0 Specification and accompanying documentation and does not extend to the RSS format itself.


The Publishing Requirements for Industry Standard Metadata (PRISM) specification defines a standard for interoperable content description, interchange, and reuse in both traditional and electronic publishing contexts. PRISM recommends the use of certain existing standards, such as XML, RDF, the Dublin Core, and various ISO specifications for locations, languages, and date/time formats. Beyond those recommendations, it defines a small number of XML namespaces and controlled vocabularies of values, in order to meet the goals listed above.

The PRISM working group, a joint effort of representatives from publishers and vendors in an initiative organized under IDEAlliance, prepared the current PRISM specification, version 1.2 - Request for Comment. That specification is authoritative and should be consulted for reference purposes. The PRISM element descriptions reproduced here are provided purely for the reader's convenience. They indicate the content models for each element, but not the cardinalities (or allowed occurrences) for each element.

The PRISM RSS 1.0 module augments the RSS core and Dublin Core modules with channel- and item-level elements taken from the basic PRISM vocabulary.

Note that Dublin Core is a PRISM vocabulary and the usage of Dublin Core terms within a PRISM document is qualified. As an example, the dc:relation term is not recommended for use with PRISM. The user is referred to section 5.2 of the PRISM specification for further details as regards PRISM recommendations for use of Dublin Core elements.

Namespace Declarations


<channel>, <item>, <image>, and <textinput> Elements:

This section lists each of the 48 elements used in the basic PRISM vocabulary together with a content model for that element. A definition and comments are also supplied for ready reference. For a definitive description of element usage, however, the reader should consult the PRISM specification, version 1.2 - Request for Comment.

Some of the content models used in this section provide content models that use parameter entity references. Those parameter entities and their meanings are:

Parameter Entity Definition
%AuthorityReference; An attribute, rdf:resource, whose value is a URI referring to a term in a controlled vocabulary.
%content.mix; Typical mix of elements for representing content, such as #PCDATA, <p>, <bold>, <quote>, etc. The details of the parameter entity will depend on the context in which the PRISM namespace is being used.
%ResourceReference; An attribute, rdf:resource, whose value is a URI reference to a resource. The set of AuthorityReferences is a subset of the set of ResourceReferences.
%TimeSpecification; A string specifying a date and time according to the W3C profile of ISO 8601 (e.g., YYYY-MM-DDThh:mm:ss.ssTZD) Note that this includes time zone data which may be important (see PRISM publicationDate) [W3C-NOTE-datetime].


<?xml version="1.0" encoding="UTF-8"?>

<channel rdf:about="http://www.nature.com/nature/current_issue/rss">
  <description>International weekly journal of science</description>
  <dc:publisher>Nature Publishing Group</dc:publisher>
  <dc:rights>Copyright  2004 Nature Publishing Group</dc:rights>
  <prism:publisher>Nature Publishing Group</prism:publisher>
  <prism:copyright>Copyright  2004 Nature Publishing Group</prism:copyright>
  <image rdf:resource="http://nurture.nature.com/rss/images/nature_rss_logo.gif"/>
        <rdf:li rdf:resource="http://dx.doi.org/10.1038/nature02756"/>

<image rdf:about="http://nurture.nature.com/rss/images/nature_rss_logo.gif">

<item rdf:about="http://dx.doi.org/10.1038/nature02756">
    <title>Atomic-scale imaging of nanoengineered oxygen vacancy profiles in SrTiO3</title>
    <description>David A. Muller, Naoyuki Nakagawa, Akira Ohtomo, John L. Grazul and Harold Y. Hwang</description>
    <dc:title>Atomic-scale imaging of nanoengineered oxygen vacancy profiles in SrTiO3</dc:title>
    <dc:creator>David A Muller</dc:creator>
    <dc:creator>Naoyuki Nakagawa</dc:creator>
    <dc:creator>Akira Ohtomo</dc:creator>
    <dc:creator>John L Grazul</dc:creator>
    <dc:creator>Harold Y Hwang</dc:creator>
    <dc:source>Nature 430, 657 (2004)</dc:source>
    <prism:section>Letters to Nature</prism:section>