mes that the repository has a policy specifying that 
AIPs cannot be deleted at any time. This particularly simple and robust implementation 
preserves links between what was originally ingested, as well as new versions that have been 
transformed or changed in any way. Depending upon implementation, these newer objects 
may be completely new AIPs or merely updated AIPs. Either way, persistent links between 
the ingested object and the resulting AIP should be maintained. 
4.4.1.2 The repository shall active