Download ALCME: OAI at OCLC - Open Archives Initiative

ALCME: OAI at OCLC
Jeffrey A. Young
OCLC Online Computer Library
Center, Inc.
Project community
Networked Digital Library of Theses
and Dissertations (NDLTD) project
 Develop open-source applications
for the creation and maintenance of a
distributed catalog of theses and
dissertations (ETD)

FOR MORE INFO...
Visit http://www.ndltd.org/
and http://purl.org/alcme/
Thesis Metadata Standard
(TheMS)
Dublin Core-based, with additional
elements from new namespaces
 Resource Description Framework
(RDF) based
 Incorporates linking to a distributed
name authority database

NDLTD’s use of OAI
Distribution mechanism for thesis
and dissertation records
 Distribution mechanism for name
authority metadata (proposed)

OAI alpha-test collection

ETDCat: Thesis and dissertation records
extracted from OCLC’s WorldCat database
 Currently, a 100,000 record subset in
Dublin Core format (~2 million total)
 Eventually, will support NDLTD’s TheMS
metadata format
FOR MORE INFO...
Visit http://purl.org/alcme/
Technical infrastructure

OAICat: an open-source OAI protocol
implementation (Java Servlet web
application)
 OAIHarvester: an open-source OAI
harvester (Java application)
 Assuming there is a Java interface to your
database engine, customization could be
accomplished in a matter of a few hours
Technical infrastructure (related)

Gwen/Pears: open-source database and
search engine
 MARC to Dublin Core converter (http
server based on the crosswalk used in
OCLC’s CORC service)
 Extensible Open RDF (EOR): an opensource RDF toolkit (in development)
Design approach





Open-source to avoid duplication of effort
Modular design for ease of maintenance
Use existing tools wherever possible,
such as Java Servlets and XSLT
Easy to deploy
Easy to customize
Development challenges
NDLTD’s TheMS format is based on the
Resource Description Framework (RDF)
 NDLTD’s TheMS format expects a linking
mechanism for name authority data

From here

Clean and release the OAIHarvester
software for others to use
 Prototype the NDLTD authority linking
mechanism
 Add TheMS format support to the thesis
and dissertation repository (ETDCat)
FOR MORE INFO...
Contact me at: [email protected]