This document discusses discovery layers and how they provide a single search interface across library catalogs, ebooks, articles, and other resources. It focuses on how Central Connecticut State University uses a discovery layer to provide access to the digital collections in CONTENTdm, including student publications, theses and dissertations, oral histories, and more. The discovery layer allows users to search all collections from the library website, Google, the OPAC, and other sources and provides previews and facets to refine results.

1. Discovery Layers for CONTENTdmA presentation for the American Library Association 2010 Conference, Washington DC,by Edward Iglesias

2. What is a “Discovery Layer”?... a Discovery Layer allows a user to search across a library catalogue (or several), an ebook platform (or several), and a source of articles (or several). A Discovery Layer could make use of one or more combinations of the following:Federated Searching a query is distributed to multiple sources, and responses are compiled, de-duped, and returnede.g. Sirsi Single SearchMetasearching a single, regularly complied index is created from the collection of metadata from multiple sourcese.g. Endeca, GoogleSingle host environment metadata and content are placed on a common servere.g. WorldCat, Ontario Scholars PortalFrom http://www.newjackalmanac.ca/2008/03/ontario-scholars-portal-yours-to.html

3. Examples from Marshall Breeding

4. What is the Discovery Layer to CONTENTdm?The place where your users come fromGoogle or Other Search EngineOPACWorldcatWebsite

5. How did we get into this mess?Thesis Scanning started ~2000Purchased LUNA Image Server in 20042004 Electronic Submission of Theses became mandatorySome Student Publications attached to item records in ILSLots of scanned items on web servers

6. And now?LUNA still there, for nowEprints gone migrated to CONTENTdm All Student Publications migrated to CONTENTdm Veteran’s History Project Added in coordination with Library of Congress

7. The result, one interface

8. What do we have?CCSU Student PublicationsThis collection features Central Connecticut State University student newspapers and literary publications from the 1940s through the present, as well as a selection of Dial Yearbooks (1926-1996). CCSU Theses & DissertationsThis collection contains the full text of select Central Connecticut State University master's theses, dissertations, and special projects submitted since 2002.GLBTQ Archives These videotaped interviews form part of the Gender Equity Collections housed at the Burritt Library. In addition to the videos, the collection also includes manuscripts, letters, photographs, books, buttons, T- shirts, videos, postcards, flyers, and periodicals by and about Gays, Lesbians, Bisexuals, Transgendered and Queer. The collection is particularly strong in materials by and about Connecticut's GLBTQ communities, and religion and the gay community. O'Neill Archives Oral HistoriesThe O'Neill and Lemon Law oral histories are significant for their impact on Connecticut governing initiatives that reverberated nationwide, of which the seminal Lemon Law legislation, designed to protect consumers from fraud and abuse by auto manufacturers, is a prime example. The interviews also focus on the administration of Connecticut Governor William A. O'Neill (1980-1990), whose humanitarian and environmental policies were notable for the era. During his tenure Governor O'Neill tackled a myriad of issues, from clean drinking water and assistance for the mentally challenged to appointing the first female Chief Justice of Connecticut's Supreme Court.Polish American PamphletsSince its establishment in 1986 the Connecticut Polish American Archives has collected many ephemeral publications that are placed in its vertical file. Materials include anniversary booklets, convention materials, programs of concerts, celebrations, reunions, dedications, dinners, balls, and testimonials. These publications may contain historical essays, photographs, and membership lists. A significant part of many of these pamphlets is devoted to advertisements by local businesses and prominent members of the community along with lists of contributors, donors, committee members, and congratulatory letters.Veterans History ProjectThis project collects oral histories along with war documents from American veterans and the civilians who actively supported them during World Wars I and II, the Korean War, the Vietnam Conflict, the Persian Gulf War, and the Afghanistan and Iraq Conflicts. The Veterans History Project is sponsored by the Center for Public Policy and Social Research and the Burritt Library at Central Connecticut State University in partnership with the American Folklife Center, Library of Congress. The materials in this collection add a human face to the challenges, triumphs and tragedies of war and serve as teaching and research tools for the general public, scholars, faculty and students worldwide.

9. How much do we have?

10. How do they find it?

11. Discovery LayersFederated Search (Worldcat Local, Metalib)OpenURL (SFX)ILS (Links back at the item level)Search Engines (especially Google)

12. Result of a Google Search

13. Goes here

14. And eventually here

15. Search the Library Website

16. Uses Local Google Search

17. WorldCat Local “quick start” Part of your WorldCat subscription60 million article citations from ArticleFirst and JSTORCustomizable search boxIntegrates services (link resolvers, document delivery, purchase, etc.)Searches OCLC licensed databasesSocial networking toolsReal-time item availability & Ability to place holdsStolen from Debbie Herman. See http://www.slideshare.net/hermand/worldcat-local-quickstart

18. On WorldCat.org you get

19. From WorldCatLocalFacetsPreview thumbnail

20. For more infoEdward IglesiasSystems LibrarianCentral Connecticut State Universityedward.iglesias@ccsu.eduDownload at http://www.slideshare.net/edwardiglesias/discovery-layers