Metadata Registries (MDR) 김민수

Contents 정보 표준화의 문제 해결 방법 ISO/IEC 11179 Metadata registries Interoperability Metadata Registries

정보 표준화의 문제 Metadata Registries 종류 이름 도어수 가격 구동방식 색 : 지프 코란도 4개 2,000만원 오토 회색 대상 Object 항목명 Property 표현값 Representation Metadata Registries

정보 표준화의 문제 정보 유통의 걸림돌: metadata의 불일치 Metadata Registries 종류 이름 도어수 가격 구동방식 색 지프 코란도 4개 2,000만원 오토 회색 항목명의 불일치 표현 값의 불일치 유형 명칭 바퀴수 소매가격 변속방식 컬러 지이프 Korando 4 20,00천원 자동 Grey 도매가격 1,800만원 18,00천원 명칭 표기의 차이 다른 항목 선택 명칭 세분화 값 표기의 차이 단위의 차이 Metadata Registries

정보 표준화의 문제 다양한 metadata 표준의 혼재 MARC(Machine-Readable Cataloging) TEI(Text Encoding Initiative) DC(Dublin Core) ONIX(ONine Information eXchange) CERIF(Common European Research Information Format) ……… 하나의 metadata 형식으로 모든 자원을 기술할 수 없으며 , 이미 다양한 형식의 metadata 표준들이 개발되어 있고, 앞으로 더 광범위한 분야의 metadata가 필요하게 됨 Metadata Registries

해결 방법 metadata 통합 vs 다양한 metadata 인정 해결 방법 사례 Crosswalk Warwick 구조 Metadata Registry Metadata Registries

해결 방법 매핑 및 참조 테이블(Crosswalk) USMARC과 DC,TEI, EAD의 매핑 테이블, DC와 다른 metadata 형식과의 참조 테이블, 공통 metadata 기술집합과의 매핑 문제점 의미상의 일치를 위해서는 전문가의 지적 능력이 필요 metadata의 잦은 수정으로 인한 유지관리의 부담 정확한 1:1 대응이 되지 않는 부분 Metadata Registries

해결 방법 Warwick 구조 공존하는 다양한 metadata 형식의 interoperability 지원 W3C에서 개념적인 차원의 통합 구조인 RDF를 개발, 구현 RDF 의미 Metadata Initiatives 구문 XML 구조 RDF 모델 스키마 1 DC MARC 관리메타데이터 namespace Metadata Registries

해결 방법 Metadata Registry(MDR) ISO/IEC JTC1/SC32에서 표준화 환경분야, 건강관리 분야, ITS 등의 특정 분야의 정보 공유에 적합 Metadata Registries

Metadata Registries metadata Metadata Registry(MDR) data that defines and describes other data Metadata Registry(MDR) an information system for registering metadata Metadata is also data, so metadata may be stored in a database. A database of metadata that supports the functionality of registration is a Metadata Registry. Metadata Registries

ISO/IEC 11179 Metadata Registries 11179-1, Framework for the Specification and Standardization of Data Elements for Data Elements 11179-1, Framework 11179-2, Classification scheme Basic attributes of Data Elements 11179-3, Registry metamodel 11179-4, Formulation of data definitions 11179-5, Naming and identification principles 11179-6, Registration for Data Elements of Data Elements Metadata Registries

ISO/IEC 11179-6 Metadata Registries Metadata Registry Control Committee Registration Authority Executive Committee Read-only Users Submitters Submitting Organization Stewards Responsible Organization Registrar Metadata Registry Metadata Registries

ISO/IEC 11179-6 Metadata Registries Process applications Submitting Organization Responsible Organization Registration Authority Specify Item Submit Item for registration Provide supplemental information Resolve conflict Process applications Assign identifiers Maintain a Registry Assign appropriate Registration Status Notify Submitters of its decisions Consult Reconcile Clarify Arbitrate: Semantics Name Domain Advise Notify Metadata Registries

ISO/IEC 11179-1 Data Element Concept Conceptual Domain Value The Mind’s Perceived View The Presentational View Metadata Registries

ISO/IEC 11179-1 Metadata Registries DATA ELEMENT CONCEPT DATA ELEMENT Object Class Object Class Object Class (1:N) (1:1) (1:1) Property Property (1:1) Representation Metadata Registries

ISO/IEC 11179-1 Metadata Registries CONCEPTUAL DOMAIN VALUE DOMAIN Non-exclusive sub-types Non-exclusive sub-types ENUMERATED CONCEPTUAL DOMAIN NON-ENUMERATED CONCEPTUAL DOMAIN ENUMERATED VALUE DOMAIN NON-ENUMERATED VALUE DOMAIN CONCEPTUAL DOMAIN VALUE MEANING PERMISSIBLE VALUES (1:N) (1:1) (N:1) VALUE DOMAIN Metadata Registries

ISO/IEC 11179-1 Metadata Registries

ISO/IEC 11179-3 Naming and Definition Classification ADMINISTERED ITEM Administration Identification Metadata Registries

ISO/IEC 11179-3 Who registered the item Administration and Identification Who registered the item What is the identifier for the item Who submitted the item Who is responsible for the item What reference material supports the item When was the item created/changed When is the item effective What comments, issues, and notes exist Metadata Registries

ISO/IEC 11179-3 Metadata Registries Administration and Identification Stewardship stewardship_contact [1..1] : Contact Submission submission_contact [1..1] : Contact Registrar registrar_identifier [1..1] : String registrar_contact [1..1] : Contact Registration_Authority registration_authority_identifier [1..1] : Registration_Authority_Identifier documentation_language_identifier [1..*] : Language_Identification 1..1 1..n containing included_in registration_authority_registrar Reference_Document reference_document_identifier [1..1] : String reference_document_type_description [0..1] : String reference_document_language_identifier [0..*] : Language_Identification reference_document_title [0..1] : String Administered_Item administered_item_administration_record [1..1] : Administration_Record 0..n registering registered_by registration described_by describing reference Organization organization_name [1..1] : String organization_mail_address [0..1] : String providing provided_by reference_organization +submited_by +submitting submission administered_by administering stewardship Metadata Registries

ISO/IEC 11179-3 Metadata Registries Registration_Authority Administration and Identification Registration_Authority registration_authority_identifier [1..1] : 1 documentation_language_identifier [1..*] : 1 Organization organization_name [1..1] : U.S. EPA organization_mail_address [0..1] : 1200 Pennsylvania Ave., N.W. City: Washington State Province: DC Zip Code: 20460 Country: USA Registrar registrar_identifier [1..1] : 1 registrar_contact [1..1] : Contact Name: Larry Fitzwater Mail Address: 1200 Pennsylvania Ave., N.W. City: Washington State Province: DC Zip Code: 20460 Country: USA E-mail Address: fitzwater.larry@epa.gov Metadata Registries

ISO/IEC 11179-3 Contexts(subject areas) Naming and Definition Contexts(subject areas) Multiple languages within a context Multiple designations(names) within a language Multiple definitions within a language Metadata Registries

ISO/IEC 11179-3 Classification schemes Items within a classification scheme Relationships of those items Metadata Registries

ISO/IEC 11179-3 Types of Administered item Data Element Value Domain Data Element Concept Value Domain Conceptual Domain Classification Scheme Context Object Class Property Representation Class Data Element Metadata Registries

OASIS/ebXML Registries Ontological Registries Registry types Common Content OASIS/ebXML Registries ISO 11179 Registries Ontological Registries Database Catalogs CASE Tool Repositories UDDI Registries Cooperation/ Interoperation Software Component Registries Dublin Core Metadata Registries

Registry types Metadata Registries OASIS/ebXML (Organization for the Advancement of Structured Information Standards/electronic business XML) XML Registries – XML Artifacts ISO 11179 Metadata Registries – Data semantics UDDI (Universal Description, Discovery, and Integration) Registries – Web-based business services Database System Registries (System Catalogs/Data Dictionaries/ Repositories) – Schema, integrity & operational information Case Tool Registries (Encyclopedias/Repositories) – Data model and application program logic Ontological Registries – Concept structures Software Component Registries – Software components Dublin Core Registries – Descriptive records for information resources Metadata Registries

Interoperation Metadata Registries ISO/IEC JTC1 SC32 UN/CEFACT OMG ISO TC 37 　　ISO TC 204 Open Forum on Metadata Registries OASIS Reg/Rep Metadata Framework for Business Objects Intelligent Transportation Systems ISO/IEC 11179 MDR Metamodel Framework W3C XML Registry UDDI TC154 Commerce XML Terminology SQL Catalog … 　　ISO TC 215 Health Informatics Metadata Registries