Contents

Overview

Call number browse functionality in FOLIO is based on the call number on the items record. This call number can either be specified on the item record itself, or it will be inherited from the associated holdings record. If a holdings record has a call number but no associated items, this call number will not appear in the browse results list.

The results list contains the prefix, call number, and suffix on the record, but of the call number data elements, the call number and the suffix values are the only data considered in the sorting mechanism. In addition, an exact match will be found if the contents of the query match that of the call number and suffix, if applicable, regardless of case.  Therefore, queries containing the prefix, copy number, volume, or enumeration data, will not produce an exact match.

If the call number and suffix combination appears on items of separate instances, the call number will appear as one line, with no contents in the "Title" column, but with the number of different instances in the "Number of titles" column. Selecting the call number will redirect user to the Instance tab on Inventory Search, and Query search will be populated with the selected call number. The results list will contain all of the corresponding instances.

There are scenarios that may result in multiple lines showing in the results list of the same call number and suffix, such as:

• Multiple items with the same call number but different locations

• Multiple items with the same call number but different call number types

Feature for full refactor: https://folio-org.atlassian.net/browse/UXPROD-4538

ECS

Browsing by call numbers is supported from both member and central tenants. In both types of tenants, call numbers from all other tenants will appear in browse results; however, the “Held by” facet can be used to limit the call numbers in the results list to only that selected tenant. Call numbers can also be limited to whether they appear on Shared or Local instances. Note that if “No” is selected in the “Shared” facet, only call numbers from Local Instances on the current member tenant context will appear in the results list; call numbers from the Local instances of other tenants will not appear.

ECS-specific considerations

• ECS configuration only occurs at the central tenant; member tenants cannot configure a tenant-level call number browse for the specific browse options. To configure call number browse from the member tenant context, user must have capabilities in both the member and central tenant.

• It is not recommended to use both the “Held by” and “Effective location (item)” facets at the same time; these facets are not conditional. Once a tenant is selected in the “Held by” facet, effective locations from call numbers on other tenants will appear in the facet, appended with the corresponding tenant name. However, call numbers from these locations will not appear in the results list.

Current Limitations

Browsing delay after adding new call number

When browsing a call number that has just been added to an Item record, there will be a short delay until that call number appears in the browse results list.

Field limits

Limits have been imposed both in the storage of call number data as well as in calculating sorting behavior. At this time, no validation has been added on the front end to restrict the number of characters that display.

Browsing by call number types

Within Inventory Browse and the header "Call numbers (item)", users can browse entire list of call numbers regardless of type ("Call numbers (all)"), as well as limit to call numbers of specific type, including:

• Dewey Decimal classification

• Library of Congress classification

• National Library of Medicine classification

• Other scheme

• Superintendent of Documents classification

Note: As of Sunflower, “Local” browse option has currently been suppressed. It will be restored in a future release.

Sorting

As call numbers of all types are browsable in the "Call numbers (all)" option, call numbers will be interfiled together and sorted alphanumerically using ASCII sort order. When limiting by call number type, call numbers will be sorted based on the algorithm of the corresponding type. These sorting algorithms are calculated within mod-search, the results of which are not stored in the Item schema.

• Library of Congress classification and Dewey Decimal classification sorting algorithms based on marc4j library

• SuDoc sorting: https://folio-org.atlassian.net/browse/MODINVSTOR-1069

Configuration

The type-specific browse options are controlled and cannot be edited at this time. However, libraries can configure these browse options by specifying which call number types should be browsable under which option. Without this configuration, all call numbers will be browsable under each type, therefore, it is required to be able to limit properly by type.

Adding default call number type to default browse option

Open

Adding custom call number type to default browse option

Open

Browsing custom call number type per configuration

Open

Known issues