OCLC Research:an update Lorcan Dempseydempseyl@oclc.org
OCLC Research • Mission • Emphasis • Perceptions
Metadatamanagement Interoperability Managementintelligence Knowledgeorganization Systems and interaction design Contentmanagement
Dublin Core ZING … SRU/SRW IMS OAI - PMH Support Visualization Interoperability Systems and interaction design
Management intelligence Under construction Explore how to support management decisions by making better use of available data.
Interlibrary Loan Study • Compare interlibrary loan borrowing patterns within a consortium • Begin with OhioLink • Compare netLibrary holdings to titles borrowed through interlibrary loan
Collection Assessment • Analyze and compare aggregate WorldCat holdings for libraries • ARL • Academic, non-ARL • Public • Identify titles and their intellectual levels, subjects (using conspectus), and publishers
User Behavior Study • Identify how print book and eBooks are used • Focus group interviews • Individual interviews • Transaction log analysis
Metadata switch Under construction • Explore a set of services which add value to metadata by leveraging OCLC expertise and cooperative processing model.
Emerging technologies provide opportunities for new services • Tools and features previously available only in integrated systems can now be provided as 'web services' • “network accessible application components” • “interoperable building blocks for constructing applications” • “self-describing applications that can be discovered and accessed over the web by other applications” • Technical definition • Web Services are a suite of protocols that define how requests and responses between software applications should be encoded & transferred over the web
Aggregationand fusion Schematransformation Names Terminologyservices
Aggregation and fusion • OAI • Theses • ?? • Fusion
Terminology services • Methods effective for print, unlikely to be the same techniques used for digital documents • Need to determine role of knowledge organization (KO) resources in relation to new approaches • Authority files • Subject heading systems and thesauri • Classification schemes
Terminology resources are currently embedded in systems & services • OCLC Connexion • Provides access to several KO schemes & links among schemes • Dewey, LCSH, Name authorities • Automated application tools • Harvest & record creation • Classification • Control of names, subjects, class numbers
Need more flexible, modular knowledge organization services • For example, one set of requirements: • Automatically check name and subject authorities • Automatically supply Dewey Decimal Classification numbers based on subject entries • On-demand check of subject and name authorities in non-OCLC record sources • Authorities notification service • Improve record quality/completeness
Knowledge Organization Services • Record Enrichment • Classes • Subjects • Names • Summaries KO Schemes 635.951 • Classification • Auto-class • Number verification • Captions • Associated Terms • Updates • Authority Control • Auto-assign • Name/Subject validation • Associated Classes • Authorities notification Name Authority Files DDC LCSH
OCLC Web Services Demo Rare and endangered animals Rare and endangered species
Prototypes & Demonstration projects • Prototype • LCCN Web Service Demo (previous slide) • OCLC & Northwestern University • DDC number verification for Cataloger's Toolkit for Voyager ILS • eprints-UK • OCLC will supply subject descriptions & name authorities as Web services for harvested resources
Schema transformation services • Accept metadata in one schema and return metadata in another schema
Names • Accept a name and return • Authoritative version of the name • Cluster of related names
Content management Under construction • Make a leading contribution to the economic and engineering issues facing the digital preservation community.
Digital preservation • OCLC/RLG collaboration • Moving from a consensus making phase to an implementation phase • Real economic and engineering issues being addressed
Economics • White paper
Digital preservation .. engineering • Research fellow • Digital coop