4.2.6 - The repository shall have documented processes for acquiring Preservation Description Information (PDI) for its associated Content Information and acquire PDI in accordance with the documented processes.
Introduction
SP acquires all Provider provided PDI at ingest and continues to create and update it for all objects within the repository. Below are the components included in SP's Preservation Description Information:
- Reference Information - Identifiers are stored for each article identifying it globally (e.g. DOI) and locally (e.g. URI).
- Provenance Information - Provenance metadata is maintained for each object that provides a history of preservation events in the object's lifetime, beginning at ingest into the SP repository and referencing any preservation activities taken on the object (e.g., replacement due to corruption, format migration, etc.).
- Context Information - As appropriate, information on how a CDO relates to other CDOs or to other conceptual entities. Examples of these relationships can include: a newer version of a document that supersedes an older one, or a journal article that is a part of a journal issue.
- Fixity Information - Fixity information is generated at the time of ingest in order to later determine whether or not the item remains in the same state as when it was ingested. This information can be used to determine integrity of an object being copied within the system (as in the case of a change in storage location), or for periodic integrity checks.
This information lives in SP's Preservation Metadata.
Responsibility
Digital Preservation Policy Librarian
Relevant Documents