t is to ensure that a user receives a usable and correct 
version of the digital object(s) (i.e., DIP) that he or she requested. A repository should show 
that any problems that do occur and are brought to its attention are investigated and acted on. 
Such responsiveness is essential for the repository to be considered trustworthy. 
 
AUDIT AND CERTIFICATION OF TRUSTWORTHY DIGITAL REPOSITORIES 
CCSDS 652.0-M-1 
Page 5-1 
September 2011 
5 INFRASTRUCTURE AND SECURITY RISK MANAGEMENT 
5.1 
TECHNICAL INFRASTRU