Outline of Presentation

11SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October

A Metadata Model Based on the Concept of A Metadata Model Based on the Concept of Structured Digital Object (SDO) and Its Structured Digital Object (SDO) and Its

Application in Digital LibrariesApplication in Digital Libraries

- From Concept to Prototype System- From Concept to Prototype System

Ying LI, Hidehiro ISHIZUKAYing LI, Hidehiro ISHIZUKAGraduate School of Library, Information and Media Studies, University of Tsukuba, JapanGraduate School of Library, Information and Media Studies, University of Tsukuba, Japan

Wednesday, October 13, 2004Wednesday, October 13, 2004


Outline of PresentationOutline of Presentation

Introduction Introduction

Body Body

ConclusionConclusion


IntroductionIntroduction

Definition of MetadataDefinition of Metadata

&&

the Concept of the Concept of SStructured tructured DDigital igital OObject (SDO) bject (SDO)

A Metadata Model Based on the Concept of SDOA Metadata Model Based on the Concept of SDO

Research PurposesResearch Purposes


Introduction Introduction - Definition of Metadata- Definition of Metadata

Definition of Metadata :Definition of Metadata : Data about dataData about data Metadata is a set of structured digital objects Metadata is a set of structured digital objects

about resources in digital libraries.about resources in digital libraries.the Concept of the Concept of SStructured tructured DDigital igital OObjectbject

SDO is metadataSDO is metadata


IntroductionIntroduction- - A Metadata Model Based on the Concept of SDOA Metadata Model Based on the Concept of SDO

Metadata Model Based on the Concept of SDOMetadata Model Based on the Concept of SDO metadatametadata elementary (atomic) unitelementary (atomic) unit hierarchy structurehierarchy structure

Research PurposesResearch Purposes all the different granularitiesall the different granularities individualindividual precise searchprecise search reuse & sharing resourcesreuse & sharing resources interoperabilityinteroperability


Elementary (Atomic) UnitElementary (Atomic) Unit

<docAuthor> LI, Ying</docAuthor> <docAuthor> LI, Ying</docAuthor>

<docAuthorLastName>LI<docAuthorLastName><docAuthorLastName>LI<docAuthorLastName><docAuthorFirstName>Ying </docAuthorFirstName><docAuthorFirstName>Ying </docAuthorFirstName>


・・・・・・

Hierarchy Structure for SDOHierarchy Structure for SDO

The first layer: set for primary documentse.g. set={anthrax-related articles}

The second layer: a primary documente.g. an article on anthrax.

The third layer: set for a part of a primary documente.g. set={title, abstract,…}

The fourth layer: a part of a primary document e.g. title, abstract, a table, a figure, reaction formula.

The fifth layer: set morphemee.g. set={word, mol. formula, a cell value of table, ..}

The sixth layer: morphemee.g. a word, molecular formula.

Coarse

Fine* Source: H. Ishizuka, Y. Li” Digital Library System Based on Concept of Computer-processable Digital Objects ”, Proceedings of Digital Library - IT Opportunities and Challenges in the New Millennium, pages 315-326, 2002.7, Beijing.

・・・・・・・


BodyBodyDesign ObjectiveDesign Objective 　　 ⇔⇔　　 Enhancing the FunctionalityEnhancing the Functionality

　　 a Global Digital Library Based on SDO Metadataa Global Digital Library Based on SDO MetadataProposal of Proposal of the Global Digital Library & Its Functions :the Global Digital Library & Its Functions :

Using the metadata model based-SDO, Using the metadata model based-SDO, RestructuringRestructuring existing resources in existing digital libraries, existing resources in existing digital libraries, Forming "Forming "Global Digital LibraryGlobal Digital Library ". ".

Global Digital Library has a feature of a portal site.Global Digital Library has a feature of a portal site.　　 SSatisfying users for precise search, atisfying users for precise search,

Meeting individual user need to different granularities information. Meeting individual user need to different granularities information. Providing Providing Web ServicesWeb Services for information services, for information services, & the function of & the function of Topic MapsTopic Maps to associate SDOs with information to associate SDOs with information

resources. resources. 　　 SSolving interoperability problems, olving interoperability problems, Achieving goals: reusing, sharing information.Achieving goals: reusing, sharing information.


Main ItemsMain Items

Architecture of the Design for a Global Digital Architecture of the Design for a Global Digital

Library Based on SDO MetadataLibrary Based on SDO Metadata Developing Prototype for a Global Digital Library Developing Prototype for a Global Digital Library Based on SDO MetadataBased on SDO Metadata


ArchitecturArchitecturee

Metadata SetBased-SDO

Heterogeneous Resources

in Existing Digital Library

Global DigitalLibrary Based-SDOHierarchy Structure

With a portal site property

Web Services

Topic Maps

Matching

MetadataNetwork Structure

Forming

Reply

Searcher’s Access

Web Services

Reply

Resources

Fig. Architecture of the Prototype

　 Subsystem: Creating Metadata Model

Subsystem: Accessing and Replying

Searcher’s Access


Subsystem : Creating Metadata Model

Subsystem: Creating Metadata Model

Definition of SDO

Metadata Set

Based-SDO

Heterogeneous Resources　in Existing

Digital Library

Global DigitalLibrary Based-SDOHierarchy Structure

Forming

Matching

①

③

②


Subsystem: Accessing & Replying

Heterogeneous Resources

in Existing Digital Library

Global DigitalLibrary Based-

SDOHierarchy Structure

Metadata SDOHierarchy Structure

Top

ic M

ap

s

Meta

data

Based

N

etw

ork

S

tructu

re

Web

S

erv

ices

①

②

③

④

⑤

⑥

⑦


Prototype: Show ScreenshotPrototype: Show Screenshot

• GranularityGranularity• Web ServicesWeb Services• Topic MapsTopic Maps


Granularity of the Existing Merck Index Data


Granularity of the Global Digital Library Based-SDO Hierarchy Structure


Web Services for Merck Index

Web Services for Merck Index


Invoking Merck Index


Invoked Result


Granularity of the Global Digital Library Based-SDO Hierarchy Structure


Describing/Expressing SDOs Relationships by Topic Maps


Resources Discovery by Topic Maps


<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="TopicMapsExample.xsl"?><topicMap xmlns:xlink="http://www.w3.org/1999/xlink"> <topic> <baseName> <baseNameString>Ciprofloxacin</baseNameString> </baseName> <occurrence> <instanceOf> <topicRef xlink:href="TopicMapsPatentsOccurrence.xml"/> </instanceOf> <resourceData>Patents</resourceData> </occurrence> <occurrence> <instanceOf> <topicRef xlink:href="TopicMapsJournalsOccurrence.xml"/> </instanceOf> <resourceData>Jurnals</resourceData> </occurrence> </topic>

XML Topic Maps (XTM)


Future Work -Application to E-learning

Text Based on SDO

Internet

Web Services

(SOA)

By Topic Maps, Linking Between

Relevant Teaching Materials, and Discoverying

Service Request

Result Set

Developing Teaching Materials Based on SDO

Sharing Teaching

Materials by Web Services

Contract-Based


ConclusionConclusion

Structured Digital Object is :Structured Digital Object is : MetadataMetadata Different granularities: from atomic to CoarseDifferent granularities: from atomic to Coarse Hierarchy structureHierarchy structure Up-to-date and practicalUp-to-date and practical use of Metadata, Web Services (SOA), and Topic Maps use of Metadata, Web Services (SOA), and Topic Maps

Reuse & Sharing Resources, Interoperability, Individual, Precise searchReuse & Sharing Resources, Interoperability, Individual, Precise search

Structured Digital Object can be applied in the fields of :Structured Digital Object can be applied in the fields of : Global Digital libraryGlobal Digital library E-learningE-learning etc. etc.

SDO-based Metadata ModelSDO-based Metadata Model DC-2004, 11-14 OctoberDC-2004, 11-14 October 2525

Thank you for your kind Thank you for your kind

attentionattention ！！謝　謝　！謝　謝　！

ご清聴ありがとうございました。ご清聴ありがとうございました。

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