Archivo General de la Nación (Argentina)
Argentina's Archivo General de la Nación chose AtoM in 2020 to advance normalised archival description and online access to its holdings. Its published loading protocol documents a structured implementation using AtoM 2.6.4, ISAD(G), ISAAR(CPF) and CSV templates for bulk imports. The workflow preserves hierarchy through legacyId and parentId fields and can attach new descriptions to records already in the catalogue through qubitParentSlug. The protocol also establishes detailed rules for authority records, dates, languages and relationships, making it a practical technical model for consistent data entry at scale. The source demonstrates an institutional implementation and repeatable import method, but it does not identify a predecessor database, prove that all AGN holdings were migrated or document an Archivematica preservation workflow.