Class 9: OpenURL & Reference Linking

Herbert Van de Sompel: http://public.lanl.gov/herbertv/

Developed OpenURL and Reference Linking. I encourage you to read his papers.

OpenURL Committee: http://library.caltech.edu/openurl/

OpenURL: http://www.exlibrisgroup.com/sfx_openurl.htm

ExLibris and their SFX software: First to implement OpenURL technology.

OpenURL Standard ANSI/NISO Z39.88 -2004 "The OpenURL Framework for Context-Sensitive Services"

Elements of an OpenURL:

Base URL:

http://grlinker.coalliance.org/grlinker/grl000001/grl-DUP.cgi? [Gold Rush Linker base URL for DU]

http://grlinker.coalliance.org/grlinker/grl000001/grl-AUR.cgi? [Gold Rush Linker base URL for Auraria]

http://jc3th3db7e.search.serialssolutions.com/? [Article Linker base for DU - jc3th3db7e is the DU code for Serials Solutions]

http://jc3th3db7e.scholar.serialssolutions.com/? [Article Linker base for DU when going through Google Scholar]

http://xt9lp6eh4r.search.serialssolutions.com/? [Article Linker base for UNC]

Query String:

Data compression and information retrieval via symbolization.

sid=auinit=XZ&aulast=Tang&atitle=Data+compression+and+information+retrieval+via+symbolization&id=pmid:12779773

[Gold Rush Linker DU] [Gold Rush Linker Auraria] [Article Linker DU] [Article Linker UNC]

History of information science

url_ver=Z39.88-2004&url_ctx_fmt=info:ofi/fmt:kev:mtx:ctx&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=History+of+information+science&rft.auinit=C&rft.aulast=Burke&rft.date=2007&rft.epage=53&rft.genre=article&rft.issn=0066-4200&rft.spage=3&rft.stitle=ANNU+REV+INFORM+SCI&rft.title=ANNUAL+REVIEW+OF+INFORMATION+SCIENCE+AND+TECHNOLOGY&rft.volume=41&rfr_id=info:sid/www.isinet.com:WoK:WOS

[Gold Rush Linker DU] [Gold Rush Linker Auraria] [Article Linker DU] [Article Linker UNC]

A form allows users to generate their own openURLs:

http://jc3th3db7e.search.serialssolutions.com/?SS_Page=refiner&SS_RefinerEditable=yes

The Digital Object Identifier (DOI) System: http://www.doi.org/ [Wikipedia entry]

A DOI is a step beyond an openURL.

10.1016/j.jad.2006.07.017

Try entering the above DOI into the Article Linker Citation Finder:

http://jc3th3db7e.search.serialssolutions.com/?SS_Page=refiner&SS_RefinerEditable=yes

This DOI can be resolved through the DOI Web site: http://dx.doi.org/10.1016/j.jad.2006.07.017

CrossRef: http://www.crossref.org/

Bowker DOI information: http://www.bowker.com/products/doi.htm

PMID: PubMed ID.

Just place a PMID into the appropriate field in a link resolver:

http://jc3th3db7e.search.serialssolutions.com/?SS_Page=refiner&SS_RefinerEditable=yes

Reference Linking

An amazing thing occurred in 1999 (http://www.dlib.org/dlib/april99/van_de_sompel/04van_de_sompel-pt1.html); (http://www.dlib.org/dlib/april99/van_de_sompel/04van_de_sompel-pt2.html); (http://www.dlib.org/dlib/october99/van_de_sompel/10van_de_sompel.html).

The ability to link to content from competing vendors began with the advent of reference linking. Originating from Herbert von de Sompel and his work with ExLibris, OpenURL technology was quickly accepted by publishers as a method for linking from a citation to the source of that citation. Let's take a look at OpenURL technology and see how it works.

An open URL is exactly what you do not want to do with your online banking. The URL is open in that variables are being passed through the URL (it is open for the world to see). You don't want to have the world see your banking ID or password, unless you want you money to disappear. But with an open URL all the crucial metadata (author, title, source publication, date, issue, year, etc.) are passed along through the URL that you can almost read without any assistance.

Here is an example of a citation and its corresponding OpenURL:

The OpenURL has been accepted as an ANSI/NISO standard, standard number Z39.88 The OpenURL Framework for Context-Sensitive Services. When you think about it, most of what we do as librarians is based on standards. Here are some examples:

Cataloging of books: MARC21; AACR2R

International Standard Serial Numbering: Z39.9

Information Retrieval: Z39.50

Guidelines for Abstracts: Z39.14

It should be no surprise that the OpenURL standard also exists. What is surprising, however, is the speed with which it has been accepted and the results of that acceptance. Within relatively few years libraries with subscriptions to multiple databases can see the benefits, especially if they subscribe to one of the several reference linking services. These services, such as SFX (ExLibris), WebBridge (Innovative Interfaces), GoldRush Linker (Colorado Alliance of Research Libraries), and 360 Link (Serials Solutions) have a high success rate when taking metadata from one source and then finding the full text through the publisher or aggregator.

OpenURL technology; bibliographic citation management; Record exporting and exchange

CrossRef: http://www.crossref.org/

Other topics:

Digital repositories; Consortial arrangements

ANSI/NISO Z39 Standards

Z39.50 Information Retrieval : Application Service Definition & Protocol Specification

Z39.88 The OpenURL Framework for Context-Sensitive Services

Z39.2 ISO 2709, Information and documentation -- Format for information exchange [the basis for the MARC record]

Z39.9 International Standard Serial Numbering (ISSN)

Z39.14 Guidelines for Abstracts

Z39.19 Guidelines for the Construction, Format, and Management of Monolingual Controlled Vocabularies

Z39.29 Bibliographic References

OAI Harvesting

http://www.openarchives.org/OAI/openarchivesprotocol.html

OAI = Open Archives Initiatives

PMH = Protocol for Metadata Harvesting

Encore can do OAI harvesting. Sample search: hockey

Review of Class