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OAIster != Google

OAIster != Google. Kat Hagedorn University of Michigan Libraries October 26, 2007. Outline. Buzzwords Brief history/overview of OAI Why OAIster was created OAIster: digital union catalog Integration Is Google next-gen?. Buzzwords. Next-gen, um, anything Lib2.0/Web2.0

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OAIster != Google

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  1. OAIster != Google Kat Hagedorn University of Michigan Libraries October 26, 2007

  2. Outline • Buzzwords • Brief history/overview of OAI • Why OAIster was created • OAIster: digital union catalog • Integration • Is Google next-gen?

  3. Buzzwords • Next-gen, um, anything • Lib2.0/Web2.0 • Z39.50/SRU, OAI, RSS… • Bottom line: user accesses material where they typically find things

  4. Expectations • OAI was developed to make it easier (not exhaustive) to create a place “where they typically find things” • And to find things they typically can’t find elsewhere • OAIster was designed to be the place

  5. What is OAI? • OAI stands for Open Archives Initiative “…develops and promotes interoperability standards that aim to facilitate the efficient dissemination of content.” • Probably should have been called SAI: Shared Archives Initiative • Includes a Protocol for Metadata Harvesting (PMH), i.e., what we use to fill OAIster • Consists of data providers and service providers

  6. Metadata records • Data providers use protocol to share their metadata records • Service providers harvest the metadata so they can provide a service using them • Metadata needs to be • XML1.1 compliant • UTF-8 enabled • Sufficient for discovery

  7. OAI: what it is not • OAI ≠ open access • “…defining and promoting machine interfaces that facilitate the availability of content from a variety of providers. Openness does not mean ‘free’ or ‘unlimited’ access to the information repositories that conform to the OAI-PMH.” • However, a large majority of OAIster records are available to all and sundry • Perfect opportunity-- freely sharing free stuff

  8. Why OAIster? • Initially, wanted to build the Academic HotBot (now we would say the Academic Google) • Essentially, a union catalog of digital objects that are not easily roboted or spidered • Currently, have more records that link to “objects” than there are records in our OPAC: 13+ million

  9. What does OAIster contain? • Pre-prints, post-prints, published articles, grey literature, scanned images, archival videos… • Harvest everything available • except obvious test repositories • Keep nearly everything • must have a valid digital object link • must have decent metadata • must be scholarly or informational

  10. http://memory.loc.gov/mbrs/varsmp/0526.mpg Library of Congress Digitized Historical Collections http://name.umdl.umich.edu/ADM0370.0002.001 University of Michigan Digital Collections

  11. Why do (should) people use it? • It’s big-- will pass 14 million shortly • It’s varied-- besides articles, photos, and videos, it contains datasets, audio files, finding aids, manuscripts… • It keepsgrowing-- as long as they keep paying my salary

  12. Integration: to date • SRU Level 0 • keyword access in federated search engines • connector for ExLibris MetaLib • anything else that uses SRU • Yahoo and Google • included in search indexes… • …poorly currently, without use of metadata • OpenURL, currently a hack

  13. Integration: future • RSS • subject or specific search link from results page • alerts on new repositories • Sakaibrary / Blackboard • Facebook • searching app…but useful? • Zotero (Refworks / Endnote) • APIs to…?

  14. What purpose, integration? • Google as example… • Can’t get at everything, until it starts using OAI itself • Gray literature and other scholarly materials in index • Push metadata so ranks high in index

  15. Google != OAIster • Does it matter if Google is next-gen? • It’s more like only-gen • Should we all either • conform to Google look-and-feel? • or insinuate ourselves everywhere? • even though integration is a catch-up game

  16. Questions? • Kat Hagedorn • University of Michigan Libraries • Digital Library Production Service • www.oaister.org • khage@umich.edu

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