If your library is eligible to have its WorldCat holdings exposed via WorldCat.org, partner sites such as Google, and WorldCat-based Web services, deep linking is the means by which Web users arrive directly at an item record in your online catalog.
Deep linking helps information seekers cross the "last mile," going from (1) WorldCat.org results for a keyword search to (2) the WorldCat.org detailed record for a specific title, including a list of nearby WorldCat libraries that hold the item, to (3) the local record in the selected library's OPAC.
To ensure deep links to your individual catalog records, take a few minutes now to register the correct URL "syntaxes" (link structures) for your OPAC. These are maintained in the WorldCat Registry (http://www.worldcat.org/registry/institution/), a free Web tool that provides a single location from which any library can manage and distribute data that describes its institutional identity and services.
Keeping your link syntaxes current in the Registry allows Web users to reach your item records directly without having to repeat their search. If your library isn't yet eligible to have its holdings exposed, there's still value in maintaining catalog links in the Registry: OCLC syndicates this information across the Web through other WorldCat-based Web services such as xISBN and LibX. Also note that keeping your WorldCat Registry profile up-to-date can significantly shorten the amount of time needed to implement WorldCat Local—the localized version of WorldCat.org—at your institution.
Settings for the WorldCat Registry are maintained in OCLC Service Configuration. You must have a WorldCat account ("My WorldCat” account on WorldCat.org, “My Account” on WebJunction®, WorldCat Registry™ account, or an OCLC Online Service Center account) to access OCLC Service Configuration. And you must be authorized to an institution to make changes. For more information, please see the Introduction section of the OCLC Service Configuration Guide.
To locate your institution's WorldCat Registry profile, use the Search function under WorldCat Registry in OCLC Service Configuration. (For more information, please see the WorldCat Registry section of the OCLC Service Configuration Guide).
Deep links from the WorldCat.org interface to individual catalog records in your OPAC will be functional on the next business day.
A deep link's "syntax" is the basic structure of the link, focusing on where standard identifier information about the searched item (ISBN, ISSN or OCLC Number) is embedded within the URL. The table below shows common ILS vendors and the syntax of their deep-link URLs.
In each URL listed, bold text indicates the component of the URL that you replace with the base URL for your OPAC (e.g. "catalog.mylibrary.org"). Bold italicized text may need to be changed depending on your local configuration. (Important notes on some systems' URL structures are in the footnotes below.)
find_code=WSB&request= (see footnote below)
CNT=25&HIST=1&BOOL1=as+a+phrase&FLD1=ISBN+(ISBN)&SAB1= (see footnote below)
|EOS Q-Series / EOS.Web||http://library_opac_baseURL/WEBOPAC/search/AdvancedSearch.asp?
|GIS Information Systems||For Polaris 3.0:
For Polaris 3.1:
For Polaris 3.2:
|Innovative||http://library_opac_baseURL/search/i= (see footnote below)|
|Dynix (iPac)||http://library_opac_baseURL/ipac20/ipac.jsp?index=ISBN&term= (see footnote below)|
|Sirsi (WebCat)||http://library_opac_baseURL/uhtbin/cgisirsi/x/0/5/?searchdata1= (see footnote below)|
|Sirsi / DRA||http://library_opac_baseURL/web2/tramp2.exe/do_authority_search/guest?SETTING_KEY=
English&location_group_filter=all&servers=1home&index=(&query= (see footnote below)
|SunRise||http://library_opac_baseURL/client_name/start.do?Query=540= (see footnote below)|
thesfld=false&lang=&ini=splusweb&uid=public&idck=&eid=&text= (see footnote below)
SearchField=4096&SearchData= (see footnote below)
The func parameter on some systems may require find-b instead of findb. The name of the local_base parameter may vary by library. Replace the find_code parameter WSB with ISBN for ISBN, ISSN for ISSN, or 035 for OCLC Number. A second known format is:
(Variations on the find parameter here are 020 for ISBN, 022 for ISSN, and 035 for OCLC Number ).
Listed above is the URL structure for ISBN. For ISSN, replace both instances of ISBN with ISSN. A different URL structure exists for OCLC Number:
Replace the closing i= with o= for OCLC Number.
Replace the index parameter ISBN with ISSN for ISSN and either UTIL, OCLC, or CNTRL for OCLC Number. Another variation is to use ISBNEX, ISSNEX and UTILEX, respectively, as the index terms. A third variation is .BN and .SN, with no known value for OCLC Number. On shared catalogs, an additional parameter &profile= is often used where the code that follows the equals sign indicates which library you are searching.
There are many known variations. Three common variations are:
with the last variation used for Windows NT-based OPACs. See the tip below about session identifiers.
Listed above is the URL structure for ISBN. For ISSN, the left parenthesis following index= changes to a right parenthesis, as in index=). A second known format is:
(Variations on the index parameter here are ss for ISSN ). A third known format is:
(Variations on the index parameter here are sn for ISSN, and index=%5e for OCLC Number ).
Listed above is the URL structure for ISBN. For ISSN, replace Query=540= with Query=543=.
Listed above is the URL structure for ISBN. For ISSN, use:
Listed above is the URL structure for ISBN. For ISSN, the SearchField parameter becomes 8192. In some systems, the CONFIG parameter may change to PAC.
Note that older or newer versions of some OPAC software may require modifications to the URLs above. For assistance on deep-link syntax, contact OCLC support at email@example.com or your OPAC vendor.