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Metadata Encoding and Transmission Standard (METS) Official Web Site

The METS schema is a standard for encoding descriptive, administrative, and structural metadata regarding objects within a digital library, expressed using the XML schema language of the World Wide Web Consortium. The standard is maintained in the Network Development and MARC Standards Office of the Library of Congress, and is being developed as an initiative of the Digital Library Federation.


New METS/ALTO Viewer: The Bibliothèque nationale de Luxembourg has created a viewer for METS files with OCR files in the ALTO format. Its main use is for digitized newspapers and postcards but can be adapted to other METS profiles as well. It can be seen in action at:

Latest METS Editorial Board Meeting Minutes: The minutes are now available from the 2014-07-31 Board meeting.
-- See Minutes

Announcing a METS Workshop at the Digital Libraries 2014 Conference in London, September 11-12: METS Now, and Then… Discussions of Current and Future Data Models.
In this workshop, participants will develop an understanding of the data models underlying some canonical uses of the existing METS schema as a contextual basis for the description of a next generation METS (2.0) data model, participate in the refinement of the METS 2.0 data model being developed by the METS Editorial Board, and discuss options for serialization of the data model.

Objectives: The objectives for this workshop are threefold:

  • Provide highlights of recent changes to the METS 1.x scheme including discussion of new registered METS profiles, and METS tools to both new and existing METS community members
  • Abstract and discuss data models from key METS 1.x users, and from other users of other aggregation formats
  • Present and discuss the METS Editorial Board’s current thinking about a METS 2.0 data model designed to be compatible with Semantic web and other technologies, and solicit community feedback.

See Details in Announcement

New METS Schema Version 1.10 Available:This and all future METS revisions are being released under the Creative Commons CC0 1.0 Universal Public Domain license. This revision adds the International Council of Museums’ LIDO (Lightweight Information Describing Objects) to the MDTYPE enumeration. LIDO supports descriptive information about all kinds of museum objects. In addition, the flexibility of the METS schema has been improved by allowing arbitrary, locally-defined attributes to be added to many of the METS elements.  Details can be found in the schema comments and will be outlined in forthcoming documentation.
-- See Announcement

Matterhorn METS Profile: The Matterhorn METS Profile, developed in cooperation with Docuteam and the Archives de l'Etat du Valais in Switzerland, is now registered.
-- See Announcement

Two New METS Tools Available: LIMB and YooLib have been added to the METS Tools page.
-- See METS Tools

New METS Presentation Available: An up to date overview presentation on METS has been added thanks to Karin Bredenberg of the Riksarkivet/Swedish National Archives. Check out this presentation and others on the METS Presentation page.
-- See METS Overview

New METS Community Blog: There's a new METS Community Blog where anyone can submit METS related articles, and where the latest news on METS will be posted.
-- See Announcement

Draft METS White Paper Now Available: The METS Editorial Board has released a draft METS White Paper, which is available for comment.
-- See Announcement

METS Profile Schema 2.0 Released: The METS Editorial Board has released a new major version of the METS Profile XML Schema.
-- See Announcement

Revised METS Primer Now Available: A revised version of the METS Primer and Reference Manual is now available from the METS Schema and Documentation page on the METS website. This version of the Primer corrects numerous errors discovered in the original version published in 2007.
-- See Announcement

METS Suggested Reading List: A brief list of helpful METS background readings has been compiled and is now available.
-- See List

-- More METS News



  The Library of Congress >> Standards
  November 12, 2014

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