Semantic Units of the PREMIS Data Dictionary
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| Containers | Current | Descendants |
|---|---|---|
| 1 - Object 1.5 - objectCharacteristics 1.5.4 - format | 1.5.4.2 formatRegistry | 1.5.4.2.1 formatRegistryName 1.5.4.2.2 formatRegistryKey 1.5.4.2.3 formatRegistryRole |
| Semantic unit | 1.5.4.2 formatRegistry |
|---|---|
| Definition | Identifies and/or gives further information about the format by reference to an entry in a format registry. |
| Applicability | Bitstream, File |
| Obligation | Optional |
| Repeatability | Not repeatable |
| Rationale | If central format registries are available to the preservation repository, they may provide an excellent way of referencing detailed format information. |
| Data constraint | Container |
| Usage notes | Either formatDesignation or at least one instance of formatRegistry is required. If more than one formatRegistry needs to be recorded the format container should be repeated to include each additional set of formatRegistry information. |