MARC21UNIMARC
MARC21UNIMARC is a term used to describe the interoperability between two competing MARC-based bibliographic formats: MARC 21 and UNIMARC. It is not a single, formal standard, but rather a way librarians and information systems refer to the processes, mappings, and workflows involved in exchanging records between the two formats.
MARC 21 is a MARC-based encoding standard developed and maintained for use primarily in North American libraries,
UNIMARC is an international MARC-based standard created under the direction of IFLA. It aims to support broad
Interoperability between MARC 21 and UNIMARC relies on crosswalks or mapping schemes that translate fields, subfields,
In practice, MARC21UNIMARC discussions focus on practical conversion, data quality, and workflow implications rather than a