The objective of the archiving process is to save the added documents in a way that they cannot be altered anymore and that they remain readable from a long-term perspective.
That image data become unalterable is effected by the field 'Archiviert' in table 'archive' showing '1': any manipulation of the image in an Archivista application is no longer accepted.
Long-term readability of the image data is achieved by the fact that in any case they are saved in a certain folder structure and that the images thus created, or the corresponding folders, respectively, are written to non-rewritable media (CDR/DVDR).