1. NSF – DLF – JISC/UKOLN Digital Library Service Registry Workshop National Science Foundation, Arlington, VA -- 23 March 2006 The University of Illinois OAI-PMH Data Provider Registry Timothy W. Cole (t-cole3@uiuc.edu)t-cole3@uiuc.edu Thomas G. Habing (thabing@uiuc.edu)thabing@uiuc.edu Grainger Engineering Library Information Center University of Illinois at Urbana-Champaign

2. http://oai.grainger.uiuc.edu/registry/

3. 23 March 2006 t-cole3@uiuc.edu University of Illinois at UC3 Evolution of UIUC OAI Data Provider Registry Initially a human-readable Web portal to find providers Added automatically discoverable data about providers Coordinated with ERRoL (OCLC, Jeff Young) Export functionality: OAI-PMH, RSS, SRU (CQL subset) Cataloged DLF member OAI data providers Can browse DLF providers by cataloged topic heading (GEM & LCSH) http://gita.grainger.uiuc.edu/registry/CatalogingOAIRepositories.pdf Work underway on Service Provider Registry

4. http://gita.grainger.uiuc.edu/registry/details.asp?id=810

5. http://gita.grainger.uiuc.edu/registry/pxtest/oai.asp?verb=GetRecord&metadataPrefix=oai_ dc&identifier=oai:id-registry.uiuc.edu:aerialphotos.grainger.uiuc.edu

6. http://gita.grainger.uiuc.edu/registry/pxtest/oai.asp?verb=GetRecord&metadataPrefix= imlsdcc&identifier=oai:id-registry.uiuc.edu:aerialphotos.grainger.uiuc.edu

7. 23 March 2006 t-cole3@uiuc.edu University of Illinois at UC7 Catalyst for the Registry Various OAI Related Harvesting Projects at UIUC Mellon Funded Gateway to Cultural Heritage Material IMLS Digital Collections and Content NSDL Digital Mathematics Resources CIC OAI Metadata Harvesting Service OAI Portal to Engineering, Physics, and Computer Science DLF-Aquifer “Asset Action” experiment Multiple OAI Providers

8. 23 March 2006 t-cole3@uiuc.edu University of Illinois at UC8 Why Another OAI Registry Difficulty finding relevant OAI repositories to harvest, especially in selecting individual sets within a repository Other questions: Which repositories are aggregating other repositories? How big are individual repositories? How to find new repositories as they come online? What is the state of the OAI world? Enable other meta services

9. 23 March 2006 t-cole3@uiuc.edu University of Illinois at UC9 Sources Various other registries: http://celestial.eprints.org/cgi-bin/ListFriends.pl http://oaisrv.nsdl.cornell.edu/Register/ListFriends.pl http://www.language-archives.org/register/archive_list.php4 http://www.mds.rmit.edu.au/~ajk/oai/interop/targets.xml http://www.openarchives.org/OAI/RejectedSites http://www.openarchives.org/Register/ListFriends.pl Google (allinurl:verb=Identify)allinurl:verb=Identify friends provenance

10. 23 March 2006 t-cole3@uiuc.edu University of Illinois at UC10 Features Many ways to Search and Browse Web Interface Harvestable via OAI RSS SRU Many ways to customize repository lists Many misc. reports and lists Harvest Bag (still in work)

11. 23 March 2006 t-cole3@uiuc.edu University of Illinois at UC11 Tech Details Windows 2000 Server Active Server Pages (ASP) running under the IIS web server SQL Server database w/ fulltext search Custom harvesting programs written in VB and VBScript

12. Database

13. 23 March 2006 t-cole3@uiuc.edu University of Illinois at UC13 Requirements for discovery, locating, configuring? Obviously baseURL, a label (name, identifier?) What about information that can be gleaned using OAI? Metadata format names, Identify response, Sets,... What about information that can be gleaned from sampling or completely harvesting repository Namespaces referenced in metadata XSDs, examples of object types and resource URLs provided, extent (number of items), metadata namespaces used,... What about information outside the OAI context Relationships, classification, description of content & associated collections, rights, changes over time,...

14. 23 March 2006 t-cole3@uiuc.edu University of Illinois at UC14 Conclusions In progress: Harvest Bag Registry of OAI Service Providers More work on export formats, machine understandability Mechanisms by which OAI DPs can edit records Further information: http://oai.grainger.uiuc.edu/registry/ Tom Habing (thabing@uiuc.edu)thabing@uiuc.edu Tim Cole (t-cole3@uiuc.edu)t-cole3@uiuc.edu