OCLC Research an update Lorcan Dempsey dempseyloclc org

OCLC Research: an update Lorcan Dempsey dempseyl@oclc. org

OCLC Research • Mission • Emphasis • Perceptions

Metadata management Interoperability Systems and interaction design Knowledge organization Content management Management intelligence

Dublin Core ZING … SRU/SRW Interoperability IMS Systems and interaction design Visualization OAI - PMH Support

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 Ohio. Link • Compare net. Library holdings to titles borrowed through interlibrary loan

Collection Assessment • Analyze and compare aggregate World. Cat 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 e. Books 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.

E-prints UK Institutional e - print archives Non - institutional e - print archives Personal e - print archives OAI - PMH Subject classification service Name authority service SOAP E-Prints UK Citation analysis service SOAP Javascript Z 39. 50 RDN gateway/portal service RDN Gateway /HTTP

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

Aggregation and fusion Schema transformation Terminology services Names

Aggregation and fusion • OAI • Theses • ? ? • Fusion

Record enhancement

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 Authority Control • Auto-assign • Name/Subject validation • Associated Classes • Authorities notification Name DDC Authority Files LCSH • Auto-class • Number verification • Captions • Associated Terms • Updates

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