Related product I-Share

SuDoc Call Number Searching in Voyager

"Generic" call number searches versus specialized call number searches

The Voyager "CALL" search code, called "Call Number" both on the Quick Search page of WebVoyage and in the Voyager staff clients, searches call numbers in the 852 $h and $i of the MFHD record, regardless of the indicators on the field. In other words, the "CALL" search retrieves any kind of call number, whether it’s LC, Dewey, NLM, SuDoc, or "other." In addition to "CALL," Voyager supports several other searches that are specific to certain types of call number:

  • MDEW retrieves Dewey call numbers
  • MLC# retrieves LC call numbers
  • MSUD retrieves SuDoc call numbers
  • etc.

Normalization

Voyager "normalizes" call numbers for indexing. Normalization affects spacing and punctuation and assures that the call numbers will sort in correct order. Call numbers from different schemes are normalized according to rules appropriate to the scheme. Likewise, the user’s search input is normalized according to the kind of search she does. The system compares normalized search input to normalized indexes to find matches. Since the generic "CALL" search searches all kinds of call numbers, the user’s search input will be normalized according to the rules the system determines are most likely to apply. Sometimes the search input for a SuDoc number will look to the system like an LC number, and so it will apply its LC normalization rules. Sometimes the SuDoc number a user types will be mistaken for a Dewey number, and so on. The generic "CALL" search is a compromise; it is not optimized for any particular kind of call number searching.

Since the normalization rules for SuDoc numbers are quite different from the rules for, say, LC or Dewey numbers, searchers interested in SuDoc numbers will get the best results when they do an MSUD search so that their search input is normalized appropriately and compared only to indexed SuDoc numbers.

SuDoc call number searching in the staff clients

Most libraries have the MSUD search "staff suppressed" in System Administration because in the staff clients an alternative to using the MSUD ("Mfhd SUDOC Classification Number") search is to use the CALL ("Call Number") search with the "Government Documents" Heading Type Filter applied. If you would like to have the MSUD search enabled, you can ask your system administrator to uncheck "Staff Suppress" in System Administration-->Search-->Indexes-Headings & Left-Anchored Definitions-->MSUD-->Index.

SuDoc call number searching in WebVoyage

CARLI has WebVoyage Customization Guidelines that say that certain design elements in WebVoyage must be kept consistent across all I-Share databases. Among these design elements are most of the "core" searches identified by the Voyager Implementation Steering Committee’s PAC Task Force, but the Guidelines do allow Libraries to change the type of call number search offered in their local instance of WebVoyage. The Guidelines state also that libraries are free to add additional search types to their local instance of WebVoyage. The MSUD index is a left-anchored index, so it would have to appear on the WebVoyage Quick Search page, rather than on the Advanced Search page. If your library would like to add a SuDoc-specific search to WebVoyage, your liaison can specifying:

  1. Whether the "MSUD" search is to be used in addition to or instead of whatever call number search is already used in the library's instance of WebVoyage
    (The default will be "in addition to.")
  2. The translation for the code "MSUD" that should display
    (The default will be "Government Documents Call Number.")
  3. Whether the search should be a browse search or a left-anchored find search
    (The default will be "browse.")
  4. Where on the list of "Search by:" options the new search should display
    (The default will be at the bottom.)
  5. Whether the box in which the "Search by:" options appear should be resized, so that all options are visible
    (The default will be "No," which means that users will need to scroll to see the "Search by:" option at the bottom of the list.)

Keyword access to SuDoc numbers in bib records

Remember that the MSUD search searches call numbers in the 852 field, first indicator 3, in the MFHD record. MSUD does not search the 086 field of the bib record. Keyword access to the bib 086 field is also possible, and may be useful in libraries that have reclassified their government documents but still desire access via the SuDoc number. New keyword searches can be defined at any time by your Voyager system administrator. Unless "OPAC Suppress" is selected on the Index tab of the keyword search definition, the new search will appear in the drop-down "Search by:" lists on the Advanced Search page, probably at the bottom of the list (although this will vary over time).

To make a new keyword search appear on the Quick Search page, the I-Share library liaison can send a note to the specifying:

  1. The keyword search code you have defined
  2. The translation for the code that should display
  3. Where on the list of "Search by:" options the new search should display
    (The default will be at the bottom.)
  4. Whether the box in which the "Search by:" options appear should be resized, so that all options are visible
    (The default will be "No" which means that users will need to scroll to see the "Search by:" option at the bottom of the list.)

Even if a keyword search definition displays on neither the Advanced Search page nor the QuickSearch page it is still possible to invoke that search in command mode ("Boolean Search.") For more information see the WebVoyage online help pages.