Publishing Requirements for Industry Standard Metadata

The Publishing Requirements for Industry Standard Metadata (PRISM)[1] specification defines a set of XML metadata vocabularies for syndicating, aggregating, post-processing and multi-purposing content. PRISM provides a framework for the interchange and preservation of content and metadata, a collection of elements to describe that content, and a set of controlled vocabularies listing the values for those elements. PRISM can be XML, RDF/XML, or XMP and incorporates Dublin Core elements. PRISM can be thought of as a set of XML tags used to contain the metadata of articles and even tag article content.

PRISM conforms to the World Wide Web standard for Namespaces. PRISM namespaces are PRISM (prism:), PRISM Usage Rights (pur:), Dublin Core (dc: and dcterms:), PRISM Inline Metadata (pim:), PRISM Rights Language (prl:), PRISM Aggregator Message (pam:), and PRISM Controlled Vocabulary (pcv:). PRISM incorporated existing industry standards such as Dublin Core and XHTML in order to leverage work that had already been done in the publishing industry. New elements were created only when required, and were assigned to PRISM specific namespaces.

Overview

PRISM consists of three specifications. The PRISM Specification, itself, provides definition for the overall PRISM framework. A second specification, the PRISM Aggregator Message (PAM) Schema/DTD, is a standard format for publishers to use for delivery of content to websites, aggregators, and syndicators. PAM is available as an XML DTD and an XML schema (XSD). Both PAM formats provides a simple, flexible model for transmitting content and PRISM metadata. The third, and newest, specification provides an XML schema (XSD) for capture of content usage rights metadata. This Guide to PRISM Usage Rights utilizes the elements found in PRISM’s Usage Rights Namespace to allow users to comprehensively capture and relay rights metadata for text and media content.

Background

In 1999, IDEAlliance contracted Linda Burman to found the PRISM Working Group to address emerging publisher requirements for a metadata standard to facilitate “agile” content for search, digital asset management, content aggregation. Since that time, individuals from more than 50 IDEAlliance member companies have participated in the development of the specifications.

PRISM is an IDEAlliance specification but is available free of charge. IDEAlliance (International Digital Enterprise Alliance) is a not-for-profit membership organization. Its mission is to advance user-driven, cross-industry solutions for all publishing and content-related processes by developing standards, fostering business alliances, and identifying best practices.

Many organizations use PRISM because it provides a common metadata standard across platforms, media types and business units. Organizations who are involved in any type of content creation, categorization, management, aggregation and distribution, both commercially and within intranet and extranet frameworks can use the PRISM standards.

The PRISM Working Group is open to all IDEAlliance members and includes: Adobe Systems, Hachette Filipacchi Media, Hearst, L.A. Burman Associates, LexisNexis, The McGraw-Hill Companies, Reader’s Digest, Source Interlink Media Companies, Time Inc., The Nature Publishing Group, and U.S. News & World Report.

Usage and Applications

PRISM can be incorporated into other standards and at this time, the PRISM Working Group is only aware of PRISM incorporation with RSS 1.0. See RSS 1.0[2] and the RSS 1.0 PRISM Module[3] for more information.

The PRISM specification defines a set of metadata vocabularies. PRISM metadata may be expressed in a different syntax depending on the specific use-case scenario. Currently PRISM metadata can be encoded XML, XML/RDF, or as XMP. Each of these expressions of PRISM metadata is called a profile.

PRISM describes many components of print, online, mobile, and multimedia content including the following:

Common PRISM Usage

See also

References

  1. ↑ PRISM Metadata Standard
  2. ↑ http://web.resource.org/rss/1.0/spec
  3. ↑ http://nurture.nature.com/rss/modules/mod_prism.html

See also

Further reading

This article is issued from Wikipedia - version of the 2/22/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.