Definition

Materials received as a unit (i.e., accession) and added to the Archives Permanent Collection. Acquisitions refers to the process of acquiring records from any source. This process results in the periodic need to reappraise (see: reappraisal) the Archives Permanent Collection for materials that need to be deaccessioned (see: deaccession).

Source: https://www2.archivists.org/glossary/terms/a/acquisition

Standards

Acquisition is a core archival function guided by two ISO standards:

ISO 20652:2006 - Producer-archive interface -- methodology abstract standard (PAIMAS)
- CCSDS 651.0-M-1: https ://public.ccsds.org/Pubs/651x0m1.pdf
ISO 20104:2015 - Producer-archive interface specification (PAIS)
- CCSDS 651.1-B-1: https://public.ccsds.org/Pubs/651x1b1.pdf