The repository shall have mechanisms for creating, identifying or gathering any extra Representation Information required.

This is necessary in order to ensure that the preserved information remains understandable and usable by the Designated Community, as exemplified by the associated Preservation Objectives.

Subscription to a format registry service; subscription to a technology watch service; preservation plans.

The repository should have mechanisms in place for monitoring and notification when Representation Information (including formats) approaches obsolescence or is no longer viable, and it should be able to show that it has mechanisms to address such notifications.

APTrust members are able to deposit any and all Representation Information as they see fit, either as additional tag files or as payload files. The Designated Community is responsible for identifying required Representation Information and including it in deposited objects.

APTrust’s current strategy for preserving content is governed by Preservation Policy,  stipulating that APTrust commits to preserving and maintaining the integrity of the original bits with no changes to the individual files. The Preservation Policy also stipulates that “Content will be owned, updated, and deleted solely by the depositor. The Collection Strategy Policy further states that content deposited “MAY be in any digital file formats” with no restrictions onto content format. APTrust constantly updates its environment, and new services may be added based on Designated Community input and requests.

APTrust is a member of the Digital Preservation Coalition, which regularly publishes Technology Watch reports. These reports and guidance notes are used by APTrust and its members when considering preservation strategies and tactics. APTrust engages in other digital preservation organizations listed in section 4.3.2, which also describes Monitoring of the Technical and Storage Environment.