770 likes | 971 Views
An Overview of Dublin Core Metadata Schema Registry. Shigeo Sugimoto Research Center for Knowledge Communities Grad. School of Library, Information and Media Studies University of Tsukuba Tsukuba, Ibaraki, Japan sugimoto @ slis. tsukuba. ac. jp. Agenda/Outline.
E N D
An Overview of Dublin Core Metadata Schema Registry Shigeo SugimotoResearch Center for Knowledge Communities Grad. School of Library, Information and Media StudiesUniversity of TsukubaTsukuba, Ibaraki, Japan sugimoto @ slis. tsukuba. ac. jp
Agenda/Outline • Introduction to Dublin Core Registry • History • Functions • Multi-linguality Issues • Demo by Snapshots • Some New Features of Dublin Core • DC 15 elements in two namespaces • Dublin Core Abstract Model • Application Profiles • Summary
History • Project started at Asian Institute of Technology (AIT), Thailand under supervision of Thomas Baker in 1998 • DCMI Registry WG since 1999 • WG home: http://dublincore.org/groups/registry/ • The DCMI registry provides definitions of DCMI Terms • Registry was moved from OCLC to U.Tsukuba in February 2008 • http://dcmi.kc.tsukuba.ac.jp/dcregistry/
Basic Functions • Search and Browse Dublin Core Terms • User Interface on the Web • Application Interfaces • Dublin Core Terms expressed in RDF • Application Interfaces that return RDF descriptions • Vocabulary Maintenance Tool • Used by Usage Board • Multilingual Feature • 25 languages
Application Interface • Provides Registry application interface - a collection of Web services • SOAP and REST. • Return results in RDF/XML format • See Help page from DCMI Registry
Application Interface • Services • listItemSummary • listSupportedLanguage • listItemDetail • getUpdates • listElements • listElementRefinements • listVocabularyTerms • listEncodingSchemes
Multi-lingual Issues • Translation of the DCMI terms was recognized as an important issue for DCMI from very early stage of the development of DCMI terms. • Translations of DCMI terms have been done by volunteers • A few national standards • A few official local affiliates • Multi-lingual functions • Browse • Search • Translation Support
Summary of All Terms Properties Classes Vocabulary Encoding Schemes Syntax Encoding Schemes
Click on “Browse” button to browse “Summary of All Terms”
Language Preference • 25 languages Select Japanese
A Note on Translations Not all of translations are up to date.
Contents of DCMI Registry • 71 properties • 15 properties in “dc” namespace • 56 properties in “dcterms” namespace • 35 classes • 9 vocabulary encoding schemes • 11 syntax encoding schemes • 4 collections
A New Feature of Dublin Core • Why two namespaces? • Each of the Dublin Core 15 elements appears two times in the list • “dc” namespace as a legacy namespace • “dcterms” namespace for all terms • Re-definition of Dublin Core 15 elements • Visible through the registry