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Page 1: METADATA contributions, please! contributions, please!
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Werkgroep KaartbeheerArbeitskreis Kartenkuratoren

Wednesday

May 19, 1999

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METADATA METADATA

contributions, please!contributions, please!

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Jan Smits

Map Curator

Koninklijke Bibliotheek

The Netherlands

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Contents

• Definition of metadata

• Typology of metadata

• Resource description models

• The Dublin Core elements

• The Dublin Core Syntax

• Metadata generators

• Dublin Core description

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Function of metadata

• Whether in the traditional context or in the Internet context, the key purpose of metadata is to facilitate and improve the retrieval of information.

• We have learnt to measure information retrieval in terms of recall and precision. If we miss a lot of relevant information, we have poor recall. If we get flooded by a lot of irrelevant information, we have poor precision.

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Metadata ICA

• [Geo-spatial] metadata are data that describe the content, data definition and structural representation, extent (both geographic and temporal), spatial reference, quality, availability, status and administration of a geographic dataset.

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Typology of metadata I

Qualitylevel

Band I Band II Band III Band IV

Quality Simple =====> =====> Rich

Diffusion =====>=====> <===== <=====

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Typology of metadata II

Band I Band II Band III Band IV

Availability Internet Internet InternetIntranet

InternetIntranet

Purpose Location Selection Evaluation Analysis

Unit ofinformation

IndividualDigitalInformation

Object

Logical setof digitalobjects, nolinks

Publication;Linksbetweenwhole andparts

Databaseswith linksbetweenwhole andparts on alllevels

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Typology of metadata III

Band I Band II Band III Band IV

Form ofrecords

Proprietarysimple records

Dublin Core ISBD FGDC,CEN, ISO,ANZLIC

Format Unstructured Attrributevalue pairs:Dublin CoreDTD

Subfield,qualifiers:USMARCUKMARCUNIMARC

Highlystructuredmark-up:FGDC DTDANZMETA

Input Robotgenerated

Robot +manualinput

Manualinput

High levelof manualinput

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Typology of metadata IV

Band I Band II Band III Band IV

Protocol HTTP withCGI forminterface

Directoryserviceprotocols

Z39.50 Z39.50 (infuture withcollectionnavigation)

Usercommunity

Internetsurfers

Internetproducers

Libraries,Cartographicinformationcenters

Producers,Documentationcentres,Clearinghouses

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Resource Description Models

• RFC 1807• Request For Comments (Consensus• standard of the Internet Engineering Task Force• IAFA• Internet Anonymous FTP Archive• SOIF• Summary of Object Interchange Formats• Dublin Core• OCLC-driven

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The DUBLIN CORE elements

CONTENT

Title Name of the resource

Subject Topic addressed

Description Textual description of content

Source Object of which the source is derived

Language Language of intellectual content

Relation Relationships to other sources

Coverage Spatial location and/or temporal durationcharacteristics

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The DUBLIN CORE elements

INTELLECTUAL PROPERTY

Creator Person or organisation primarilyresponsible for intellectual content

Publisher Agent or agency which makes the objectavailable in its current form

Contributor Others who are not primarily responsiblefor intellectual content

Rights Rights management statement

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The DUBLIN CORE elements

INSTANTIATION

Date Date associated with creation oravailability

Type Genre of the object, e.g. novel, poem,dictionary, map, etc.

Format Physiscal manifestation, e.g. PostScriptfile, .PDG, .JPG, .TIFF, .GIF, etc.

Identifier String or number used for uniqueidentification

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The DUBLIN CORE syntax

• Title element

• <META NAME="DC.Title" CONTENT="(LANG=en) free text"> [HTML 2.0/3.2]

• or

• <META NAME="DC.Title" LANG=”en" CONTENT=”free text"> [HTML 4.0]

• e.g.

• <META NAME="DC.Title" LANG=”en" CONTENT=”Metadata, contributions, please!">

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The DUBLIN CORE syntax• Subject element

• <META NAME="DC.Subject" CONTENT="(LANG=en) free text">

• or:

• <META NAME="DC.Subject" CONTENT="(SCHEME=classificationsystem) classificationcode">

• e.g.

• <META NAME=“DC.SUBJECT” CONTENT=“(SCHEME=CCK)273”>

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Metadata Related Tools

• http://purl.org/dc/tools/index.htm [OCLC]

• Deutschland:

• http://www.swbv.uni-konstanz.de/wwwroot/metadata/tp_dc00.html

• Nederland

• http://www.konbib.nl/donor

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Karte des Fraser River

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DC - CONTENT

• <META NAME=“DC.Title” CONTENT=“Karte des Fraser River”>

• <META NAME=“DC.Subject” CONTENT=“Topography”>

• <META NAME=“DC.Description” CONTENT=“Exploration map”>

• <META NAME=“DC.Source” CONTENT=“PGM, 6. Band, 1860”>

• <META NAME=“DC.Language” CONTENT=“German”>

• <META NAME=“DC.Relation” CONTENT=“Der Fraser River in British Columbia, von der Mündung bis Fort Yale (article)”>

• <META NAME=“DC.Coverage” CONTENT=“British Columbia, 1859”>

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DC - CONTENT

• COVERAGE• <META NAME=“DC.Coverage” CONTENT=“British

Columbia, 1859”> or• <META NAME=“DC.Coverage”

CONTENT=“(SCHEME=INTERNATIONAL PRIME MERIDIAN) W123°20’- W121°09’/ N49°38’- N48°55’, 1859”>

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DC - INTELLECTUAL PROPERTY

• <META NAME=“DC.Creator” CONTENT=“A. Petermann”>

• <META NAME=“DC.Publisher” CONTENT=“Perry-Castañeda Library Map Collection”>

• <META NAME=“DC.Contributor” CONTENT=“L. Friederichsen”>

• <META NAME=“DC.Rights” CONTENT=“Public domain, free of copyright”>

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DC - INSTANTIATION

• <META NAME=“DC.Date” CONTENT=“1996-10-06”>

• <META NAME=“DC.Type” CONTENT=“Map”>

• <META NAME=“DC.Format” CONTENT=“image/jpeg”>

• <META NAME=“DC.Identifier” CONTENT=“http://www.lib.utexas.edu/Libs/PCL/Map_collection/historical/Fraser_River_BC_1859.jpg”>

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DC-Description• <!doctype html public "-//IETF//DTD HTML//EN//3.2">

• <HTML>

• <TITLE>Karte des Fraser River</TITLE>

• <HEAD>

• <META NAME=“DC.Title” CONTENT=“Karte des Fraser River”>

• <META NAME=“DC.Subject” CONTENT=“Topography”>

• <META NAME=“DC.Description” CONTENT=“Exploration map”>

• <META NAME=“DC.Source” CONTENT=“Petermanns Geographische Mitteilungen, 6. Band, 1860”>

• <META NAME=“DC.Language” CONTENT=“German”>

• <META NAME=“DC.Relation” CONTENT=“Der Fraser River in British Columbia, von der Mündung bis Fort Yale (article)”>

• <META NAME=“DC.Coverage” CONTENT=“British Columbia, 1859”>

• <META NAME=“DC.Creator” CONTENT=“A. Petermann”>

• <META NAME=“DC.Publisher” CONTENT=“Perry-Castañeda Library Map Collection”>

• <META NAME=“DC.Contributor” CONTENT=“L. Friederichsen”>

• <META NAME=“DC.Rights” CONTENT=“Public domain, free of copyright”>

• <META NAME=“DC.Date” CONTENT=“1996-10-06”>

• <META NAME=“DC.Type” CONTENT=“Map”>

• <META NAME=“DC.Format” CONTENT=“image/jpeg”>

• <META NAME=“DC.Identifier” CONTENT=“http://www.lib.utexas.edu/Libs/PCL/Map_collection/historical/Fraser_River_BC_1859.jpg”>

• </HEAD>

• <BODY>

• <A HREF=“Fraser-big.jpg”><IMG SCR=“Fraser-thumbnail.jpg” ALT=“Karte des Fraser River”>

• </BODY>

• </HTML>

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Townplans in The Netherlands• The resulting table, because of its length, does not give a good

general outline of the situation. Therefor we decided to construct

• two maps, one for the coverage of the municipalities and one for the coverage of publishers. It took some time before Simone

• Meijer, our trainee, had converted an administrative map of The Netherlands from Atlas Gis to Aldus Freehand 3.1. The next

• stage took some days -amongst others a conversion to Paint Shop Pro to create .GIF files- but the resulting choropleth and

• distribution maps satisfied our expectations bibliography. Ref 12

• Map of the coverage of townplans, Depot map collection Koninklijke Bibliotheek

• (National Library of The Netherlands) per July 1, 1996.

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Coverage of townplans, Depot map collection Koninklijke Bibliotheek (National Library of The Netherlands) per July 1,

1996.

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DC-Description• <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN//3.2">• <HTML><HEAD>• <TITLE>• Coverage of townplans, map collection Koninklijke Bibliotheek (National Library of The Netherlands) per July 1, 1996• </TITLE>• <META NAME="DC.TITLE" CONTENT="Coverage of townplans, map collection Koninklijke Bibliotheek (National Library• of The Netherlands) per July 1, 1996">• <META NAME="DC.SUBJECT" CONTENT="collection profile, town plans">• <META NAME="DC.DESCRIPTION" CONTENT="Coverage of townplans, map collection Koninklijke Bibliotheek (National Library• of The Netherlands) per July 1, 1996">• <META NAME="DC.SOURCE" CONTENT="">• <META NAME="DC.LANGUAGE" CONTENT="English">• <META NAME="DC.RELATION" CONTENT="IsPartOf: http://www.konbib.nl/kb/skd/liber/articles/smits10.htm">• <META NAME="DC.COVERAGE" CONTENT="Netherlands, 1996">• <META NAME="DC.CREATOR" CONTENT="Meijer, Simone">• <META NAME="DC.PUBLISHER" CONTENT="Groupe des Cartoth&#233;caires de LIBER">• <META NAME="DC.CONTRIBUTOR" CONTENT="">• <META NAME="DC.RIGHT" CONTENT="Meijer, Simone">• <META NAME="DC.DATE" CONTENT="1999-05-03">• <META NAME="DC.TYPE" CONTENT="map">• <META NAME="DC.FORMAT" CONTENT="HTML, GIF">• <META NAME="DC.IDENTIFIER" CONTENT="http://www.konbib.nl/kb/skd/liber/articles/sstads90.html">• </HEAD>• <BODY>• <IMG SRC="../liber.gif">• <B>Ligue des Biblioth&#232;ques Europe&#232;nnes de Recherche, groupe des Cartoth&#233;caires de LIBER</B>• <P>• <HR>• <P> • Coverage of townplans, Depot map collection Koninklijke Bibliotheek (National Library• of The Netherlands) per July 1, 1996.• <P>• <IMG SRC="sstads90.gif">

• </BODY>• </HTML>

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Thank you!

Any Questions?