https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=40309 Bug ID: 40309 Summary: New authority framework plugin for MARC21 (marc21_field_082a_authorities.pl) Change sponsored?: --- Product: Koha Version: Main Hardware: All OS: All Status: NEW Severity: enhancement Priority: P5 - low Component: MARC Authority data support Assignee: koha-bugs@lists.koha-community.org Reporter: a.roussos@dataly.gr QA Contact: testopia@bugs.koha-community.org Background information ---------------------- Dewey Decimal Classification (DDC) [1] numbers can be stored in MARC21 authority records as follows ('R' and 'NR' denoting 'Repeatable' and 'Non-Repeatable' fields/subfields, respectively): 082 - Dewey Decimal Call Number (R) 082$a - Classification number (NR) 083 - Dewey Decimal Classification Number (R) 083$a - Classification number element-single number or beginning number of span (NR) 083$b - Classification number element-ending number of span (NR) Since 2024, both MARC21 and UNIMARC standards have been updated to enable storing information in the form of Real World Object URIs, corresponding to either a single DDC number or a DDC number range. Such URIs are stored in MARC21 subfield 082$1 / 083$1. Here's an example provided by LoC: 082 0 4 $a 205 $2 23/eng/20230428 $1 https://id.oclc.org/worldcat/ddc/E3wr6cb9BxbG4wDPXgHCPXYfYw For more information, please refer to the LoC website [2,3]: The OCLC Dewey Linked Data API ------------------------------ OCLC recently [4] started offering a Linked Data (LD) [5] API [6] that allows looking up DDC numbers to obtain unique URIs/URLs and Descriptions for a particular DDC number (or range). In addition to API searches, a smaller subset of the LD can also be browsed online in a hierarchical manner [7]. Reasoning behind this Bug report -------------------------------- We believe that Koha users who include DDC numbers in their authority cataloguing would benefit from an integration with the OCLC Dewey LD API that would allow them to easily lookup DDCs in exchange for LD URIs/URLs and Descriptions. To this end, we propose the addition of a new Authority Framework plugin for MARC21 that will offer this functionality. This plugin builds on the groundwork laid by Bug 40308, in order to offer 1-click DDC lookups from within the Authorities cataloguing editor. References: [1] https://www.oclc.org/content/dam/oclc/dewey/versions/print/intro.pdf [2] https://www.loc.gov/marc/authority/ad082.html [3] https://www.loc.gov/marc/authority/ad083.html [4] https://www.oclc.org/en/news/releases/2024/20240815-uniform-resource-identif... [5] https://www.oclc.org/en/linked-data.html [6] https://developer.api.oclc.org/dewey-ld [7] https://entities.oclc.org/worldcat/ddc/ -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes.