should include 
documentation that gives a detailed description of the ingest process for each SIP to AIP 
AUDIT AND CERTIFICATION OF TRUSTWORTHY DIGITAL REPOSITORIES 
CCSDS 652.0-M-1 
Page 4-9 
September 2011 
transformation, typically consisting of an overview of general processing being applied to all 
such transformations, augmented with description of different classes of such processing and, 
when applicable, with special transformations that were needed. 
Some repositories may need to produce these c