Preservation Watch is a well-accepted concept that was first created during the European PLANETS project by Barbara Sierman and Paul Wheatley. It goes beyond the OAIS monitoring activities and helps provide a better description of the Preservation Planning Functional Entity. The Planets Functional Model identifies 3 key preservation functions:
- Preservation Watch,
- Preservation Planning and
- Preservation Action.
Preservation Watch monitors internal and external entities, including the repository content. It deals with both the OAIS Administration and Preservation Planning areas. The Preservation Watch has 4 sub-functions:
- Monitor: collates preservation information from a variety of internal and external entities.
- Risk Analysis: assessment of this information, relaying critical risks to Preservation Planning.
- Representation Information Update: provides updates, including recording Risks and Executed Preservation Plans.
- Testbed: a controlled environment for studying the operation of tools and services which will inform the Preservation Planning activities.