mets

Sandip Das

MS-LIS 2013-2015Documentation Research And Training Centre (DRTC)

Indian Statistical InstituteBangalore Centre

Metadata Encoding and Transmission Standard

Introduction

Characteristics of METS

Sections of a METS

Current Users

Conclusion

Overview

Apr 12, 2023 2Sandip Das, DRTC, Indian Statistical Institute

Introduction


Sections of a METS

Current Users

ConclusionApr 12, 2023 3Sandip Das, DRTC, Indian Statistical Institute

Data about data

Metadata is structured information

Metadata can be used to find, gather, and maintain resources over long periods of time.

Metadata ?


Metadata Encoding and Transmission Standard

A metadata standard for encoding descriptive, administrative, and structural metadata regarding objects within a digital library, expressed using the XML language of the World Wide Web Consortium.

Produced by LC and DLF

METS ?


An ISO standard

Interchangeable with other applications

Easy to integrate cataloguinginformation with text transcription, images etc.

Handles structural metadata easily

XML?

Apr 12, 2023 6Sandip Das, DRTC, Indian Statistical InstituteSource : www.allzonedigital.com

Why We Use ?

All metadata format (like DC, EAD, VRA) utilize for bibliographic description.

METS act as a container object for the many piece of metadata needed to describe a single digital object.

A number of pieces of metadata are attached to each digital object.

METS provides a method for building the object (i.e. metadata, attached items etc.) together so they can be transferred.


Introduction


Sections of a METS

Current Users

Conclusion


Generally one METS file corresponds to one digital object (which may incorporate many files)

All metadata encoded in single document

Each type is held in a separate section, linked by identifiers

All metadata and external data (eg. images, text, video) is either referenced from METS file or can be held internally

Characteristics


Introduction


Sections of a METS

Current Users

Conclusion


HOW TO BUILD A METS DOCUMENT

Apr 12, 2023 Sandip Das, DRTC, Indian Statistical Institute 11

METS

Header

Admin MD

Struct. Map

Struct. Link

File Sec.

Behaviors

Descrip. MD

Image Source : http://www.slideshare.net/Annie05/mets-short-overview-context-presentation

The METS Header contains metadata describing the METS document itself, including such information as

creator, editor, etc.

Image Source : www.loc.gov/standards/mets/presentations/METS.ppt

METS Header

<metsHdr>

<mets>

mets Header


METS Header(Contd.)

<metsHdr>

<mets>

mets Header



<metsHdr CREATEDATE="2003-07-04T15:00:00" RECORDSTATUS="Complete">

<agent ROLE="CREATOR" TYPE="INDIVIDUAL"> <name>Jerome

McDonough</name> </agent> <agent ROLE="ARCHIVIST" TYPE="INDIVIDUAL">

<name>Ann Butler</name> </agent> </metsHdr>

Can record all of the units of descriptive metadata pertaining to the digital entity represented by METS document

– Descriptive Metadata may be

– External to the METS document

– Internal to the METS document


Descriptive Metadata

<dmdSec>

<mets>

descriptive metadata Section


External Descriptive metadata element in a METS document may simply identify the type of descriptive metadata it represents (MARC, EAD, etc), and point to this metadata in its external location via a URI Descriptive Metadata


External Descriptive Metadata (Contd.)

<dmdSec>

<mets>



External Descriptive Metadata (Contd...)

<dmdSec>

<mets>




<dmdSec ID="dmd001"> <mdRef LOCTYPE="URN"

MIMETYPE="application/xml" MDTYPE="EAD" LABEL="Berol Collection

Finding Aid">urn:x-nyu:fales1735</mdRef> </dmdSec>

Internal descriptive metadata may be recorded internally in a METS document in one of two ways

– As XML data using vocabulary and syntax specified in external XML standard. For example, Dublin Core, MARC, MODS.

– As binary data. For example, a standard MARC record could simply be incorporated as binary data into METS document.


Internal Descriptive Metadata

<dmdSec>

<mets>



Internal Descriptive Metadata (Contd…)

<dmdSec>

<mets>


Image Source : www.loc.gov/standards/mets/presentations/METS.pptApr 12, 2023 18

Sandip Das, DRTC, Indian Statistical Institute

<dmdSec ID="dmd002"> <mdWrap MIMETYPE="text/xml" MDTYPE="DC" LABEL="Dublin Core Metadata">

<xmlData> <dc:title>Alice's Adventures in Wonderland</dc:title> <dc:creator>Lewis Carroll</dc:creator>

<dc:date>between 1872 and 1890</dc:date> <dc:publisher>McCloughlin Brothers</dc:publisher>

<dc:type>text</dc:type> </xmlData> </mdWrap> </dmdSec> <dmdSec ID="dmd003"> <mdWrap

MIMETYPE="application/marc" MDTYPE="MARC" LABEL="OPAC Record">

<binData>MDI0ODdjam0gIDIyMDA1ODkgYSA0NU0wMDAxMDA...(etc.) </binData> </mdWrap> </dmdSec>

This elements contain the administrative metadata pertaining to the files comprising a digital library object, as well as that pertaining to the original source material used to create the object. There are four main forms of administrative metadata provided for in a METS document:1. Technical Metadata (information regarding files' creation, format, and use characteristics), 2. IPR Metadata (copyright and license information)3. Source Metadata (descriptive and administrative metadata regarding the analog source from which a digital library object derives) 4. Digital Provenance Metadata (information regarding source/destination relationships between files)

Administrative metadata

<amdSec>

<mets>

administrative metadata Section


The file section lists all files containing content which comprise the electronic

versions of the digital object.


File Section

<fileSec>

<mets>

file Section


Files are organized into File Groups based on the grouping you would like to do. One way is to group by format (tiff, hi-res jpeg, med-res jpeg, gif, etc)

File Section(contd…) File groups

<fileSec>

<mets>

<fileGrp>

<fileGrp>

<...>

<file>

<file>

<...>

<file>

<file>

<...>

Apr 12, 2023 21Sandip Das, DRTC, Indian Statistical InstituteSource:www.loc.gov/standards/mets/presentations/METS.ppt

<file ID="FILE003" MIMETYPE="image/jpeg">

<Flocat LOCTYPE="URL">

http://dlib.nyu.edu/tamwag/beame.jpg

</FLocat>

</file>

File Section(contd…) File

<fileSec>

<mets>

file Section



The structural map is the heart of a METS document. It outlines a hierarchical

structure for the digital library object, and links the elements of that structure to

content files and metadata that pertain to each element.


Structural Map Section

<structMap>

<mets>

structural Map section


<structMap TYPE="PHYSICAL"> <div ID="title1.div.1" LABEL="Chapter 1“<div ID="title.1.div.1.1" LABEL="Section 1"> <fptr FILEID="title1.image.1"/><fptr FILEID="title1.image.2"/> </div><div ID="title.1.div.1.2" LABEL="Section 2"><fptr FILEID="title1.image.3"/> </div></div> <div ID="title1.div.2" LABEL="Chapter 2"></div></structMap>

Structural Map Section(Contd…)


<structMap>

<mets>

structural Map section

The Structural Links section of METS allows METS creators to record

the existence of hyperlinks between nodes in the hierarchy

outlined in the Structural Map. This is of particular value in using

METS to archive Websites.


Structural Link Section

<structLink>

<mets>

structural Link section


<div ID="P1" TYPE="page" LABEL="Page 1">

<fptr FILEID="HTMLF1"/>

<div ID="IMG1" TYPE="image" LABEL="Image Hyperlink to Page 2">

<fptr FILEID="JPGF1"/>

</div>

<div ID="P2" TYPE="page" LABEL="Page 2">

<fptr FILEID="HTMLF2"/> </div>

Structural Link Section


<structLink>

<mets>

structural Link section

A late addition to the METS standard, the behavior section allows information to be recorded on how components of the digital object should be rendered for the user, this may include information on specific software packages to be used, or on particular parameters to be used when rendering a file.


Behavior Section

<behaviorSec>

<mets>

behavior Section



Introduction


Sections of a METS

Current Users

Conclusion

– UC Berkeley (archival collections)

– Harvard (scanned print publications, e-journals)

– Library of Congress (audio/visual collections)

– EU Meta E project (historic newspapers)

– Michigan State (oral history collections)

– Univ. of Virginia (FEDORA digital objects)

– MIT (DSpace)

– RLG (RLG Cultural Materials)

Current users


Introduction


Sections of a METS

Current Users

Conclusion


• METS provides varied and flexible mechanisms for

– expressing structure or structures of a digital entity

– linking structure with simple and complex content

– linking structure with descriptive metadata

– linking structure and content files with administrative metadata

– linking behaviors with structure and content

ConclusionConclusion


METS official site:http://www.loc.gov/standards/mets

Wikipediahttp://en.wikipedia.org/wiki/METS

UC Berkeley Libraryhttp://ucblibrary4.berkeley.edu:8088/xdlib//calcultures/uci/mets/cui_1_6_00004505.xml

Reference


Image Source : www.cornwall.gov.uk


mets

Education

data metadata

structural metadata

metadata format

piece of metadata

type of descriptive

units of descriptive

mets file

mets headercontd