Metadata Authority Description Schema
Library Cataloging

Metadata Authority Description Schema


In response to numerous requests, the Library of Congress' Network
Development and MARC Standards Office has drafted an XML schema for an authority element set that may be used to provide metadata about agents (people, organizations), events, and terms (topics, geographics, genres, etc.). This Metadata Authority Description Schema (MADS) was created to serve as a companion to the Metadata Object Description Schema (MODS). As such, MADS has a relationship to the MARC 21 Authority format, as MODS has to MARC 21 Bibliographic-- both carry selected data from MARC 21. There is a high level of compatibility between the MADS and MODS schemas. MADS is expressed using the XML schema language of the World Wide Web Consortium. Note that once the schema is finalized, a few changes may be made to MODS for consistency. An example is that MADS uses the term "event" instead of "conference".

The MADS draft schema is now available for broad review to inform its completion. Based on input from prospective users, the schema will be revised and made available for experimentation. The review period will be between June 4 and July 16, 2004.

The Web site includes the XML schema itself, a document describing the purpose of MADS and details about definitions of the most important elements, and an outline of elements and attributes. A mapping to the MARC 21 Authority Format will be available shortly.




- Metadata Authority And Description Schema 2.0
Image via WikipediaNews from LC. The MODS/MADS Editorial Committee and the Library of Congress are pleased to announce a new version of the Metadata Authority and Description Schema, MADS version 2.0. This is the first major revision of MADS since its...

- Mads, Request For Comments
A request for comments from the MADS folks. The MODS/MADS Editorial Committee has released a draft the MADS 2.0 XML Schema for community review and testing. Your comments are invited on the draft schema, posted at http://www.loc.gov/standards/mads/mads-2-0-draft.xsd...

- Mads/rdf Ontology For Review
The Library of Congress is looking for feedback on the MADS/RDF ontology. A MADS/RDF ontology developed at the Library of Congress is available for a public review period until Jan. 14, 2011. The MADS/RDF (Metadata Authority Description Schema in RDF)...

- Metadata Authority Description Schema
Some news about the Metadata Authority Description Schema (MADS).Please note that we've made some changes to the draft MARC authorities to MADS mapping, since we discovered in writing the stylesheet for conversion that the authority attribute was...

- Metadata Object Description Schema (mods)
"The Library of Congress' Network Development and MARC Standards Office, with interested experts, has developed the Metadata Object Description Schema (MODS), which is a bibliographic element set that may be used for a variety of purposes, particularly...



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