| Usage notes | Most preservation repositories will want to record all relevant relationships. In complex scenarios, PREMIS might not be able to express rich enough structural relationships to be the only source of structural metadata. Many formats for representing structural information may be used instead of the semantic units specified here. This information must be recorded, and some implementations may record it by using other structures (e.g. METS). Structural relationships between the file and representation level are necessary to reconstruct a representation in order to ascertain that the representation is renderable. A record of structural relationships at the representation level may be necessary to render the representation. Structural relationships at the bitstream level can relate bitstreams within a file. Structural relationships between Intellectual Entities may be used to record logical containment, such as between an article and an issue, or physical containment, such as between a page and a book. Derivative relationships at the file, representation and Intellectual Entity level are important for documenting digital provenance. |
