METS

METS

The Metadata Encoding and Transmission Standard (METS) is a metadata 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.

Contents

Introduction

METS is an XML Schema designed for the purpose of:

  • Creating XML document instances that express the hierarchical structure of digital library objects.
  • Recording the names and locations of the files that comprise those objects.
  • Recording associated metadata. METS can, therefore, be used as a tool for modeling real world objects, such as particular document types.

Depending on its use, a METS document could be used in the role of Submission Information Package (SIP), Archival Information Package (AIP), or Dissemination Information Package (DIP) within the Open Archival Information System (OAIS) Reference Model.

Digital libraries Vs Traditional libraries

Maintaining a library of digital objects requires maintaining metadata about those objects. The metadata necessary for successful management and use of digital objects is both more extensive than and different from the metadata used for managing collections of printed works and other physical materials.

  • Where a traditional library may record descriptive metadata regarding a book in its collection, the book will not dissolve into a series of unconnected pages if the library fails to record structural metadata regarding the book's organization, nor will scholars be unable to evaluate the book's worth if the library fails to note that the book was produced using a Ryobi offset press.
  • The same cannot be said for a digital library. Without structural metadata, the page image or text files comprising the digital work are of little use, and without technical metadata regarding the digitization process, scholars may be unsure of how accurate a reflection of the original the digital version provides.
  • However in a digital library it is possible to create e-book like PDF file, Tiff file which can be seen a single physical book and reflect the integrity of the original.

Characteristics of METS documents

Any METS document has the following features:

  • An open standard (non-proprietary)
  • Developed by the library community
  • Relatively simple
  • Extensible
  • Modular

The 7 sections of a METS document

  • METS header metsHdr: Contains metadata describing the METS document itself, such as its creator, editor, etc.
  • Descriptive Metadata dmdSec: May contain internally embedded metadata or point to metadata external to the METS document. Multiple instances of both internal and external descriptive metadata may be included.
  • Administrative Metadata amdSec: Provides information regarding how files were created and stored, intellectual property rights, metadata regarding the original source object from which the digital library object derives, and information regarding the provenance of files comprising the digital library object (such as master/derivative relationships, migrations, and transformations). As with descriptive metadata, administrative metadata may be internally encoded or external to the METS document.
  • File Section fileSec: Lists all files containing content which comprise the electronic versions of the digital object. file elements may be grouped within fileGrp elements to subdivide files by object version.
  • Structural Map structMap: Outlines a hierarchical structure for the digital library object, and links the elements of that structure to associated content files and metadata.
  • Structural Links structLink: Allows METS creators to record the existence of hyperlinks between nodes in the Structural Map. This is of particular value in using METS to archive Websites.
  • Behavioral behaviorSec: Used to associate executable behaviors with content in the METS object. Each behavior has a mechanism element identifying a module of executable code that implements behaviors defined abstractly by its interface definition.

METS profiles

METS Profiles are intended to describe a class of METS documents in sufficient detail to provide both document authors and programmers the guidance they require to create and process METS documents conforming with a particular profile.

A profile is expressed as an XML document. There is a schema for this purpose. The profile expresses the requirements that a METS document must satisfy. A sufficiently explicit METS Profile may be considered a data standard.

METS Profiles in use

  • Musical Score (may be a score, score and parts, or a set of parts only)
  • Print Material (books, pamphlets, etc.)
  • Music Manuscript (score or sketches)
  • Recorded Event (audio or video)
  • PDF Document
  • Bibliographic Record
  • Photograph
  • Compact Disc
  • Collection

See also

External links


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Look at other dictionaries:

  • mets — [ mɛ ] n. m. • v. 1360; mes v. 1130; lat. pop. missum « ce qui est mis sur la table », de mittere « mettre » ♦ Langue soutenue ou région. Chacun des aliments cuisinés qui entrent dans l ordonnance d un repas. ⇒ 2. plat. Confectionner, accommoder… …   Encyclopédie Universelle

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  • mets — (mê ; l s se lie : un mê z exquis) s. m. Part, portion d une substance alimentaire destinée à un repas. •   Qu ils s envoyassent les uns aux autres des mets de leur table, SACI Bible, Esther, IX, 22. •   Qu aperçois je ? dit il, c est quelque… …   Dictionnaire de la Langue Française d'Émile Littré

  • METS — Der Metadata Encoding Transmission Standard (METS) ist ein mit XML Schema definiertes XML Format zur Beschreibung von digitalen Sammlungen von Objekten mit Metadaten. Das Format der Metadaten (MAB, MARC, Dublin Core, MIX...) kann verschieden sein …   Deutsch Wikipedia

  • Mets — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Sur les autres projets Wikimedia : « Mets », sur le Wiktionnaire (dictionnaire universel) Mets peut désigner les choses suivantes : En …   Wikipédia en Français

  • mets — nm., plat cuisiné, préparation culinaire ; tout aliment apprêté qu on sert pour les repas : PLyA (Aix, Annecy.003, Arvillard.228, Thônes, Villards Thônes | Albanais.001, Balme Si.) ; friko (Chambéry, Gets). E. : Fricot, Nourriture, Préparer. A1)… …   Dictionnaire Français-Savoyard

  • METS — Metadata Encoding and Transmission Standard Pour les articles homonymes, voir Mets. METS (Metadata Encoding and Transmission Standard) est un schéma XML développé à l initiative de la Digital Library Federation (DLF), et autorisant la création et …   Wikipédia en Français

  • METS — s. m. Chacun des aliments apprêtés qu on sert pour les repas. Il nous a fait bonne chère, tous les mets étaient excellents. Tous ces mets sont exquis. Un mets délicat, simple, recherché, mal apprêté. Il ne nous a donné que des légumes pour tout… …   Dictionnaire de l'Academie Francaise, 7eme edition (1835)

  • METS — n. m. Chacun des aliments apprêtés qu’on sert pour les repas. Un mets délicat, simple, recherché, bien apprêté, mal apprêté. Un mets savoureux, un mets insipide. La variété des mets …   Dictionnaire de l'Academie Francaise, 8eme edition (1935)

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