| Semantic unit | 1.13.1 relationshipType |
|---|
| Definition | A high-level categorization of the nature of the relationship. |
| Obligation | Mandatory |
| Repeatability | Not repeatable |
| Data constraint | Value should be taken from a controlled vocabulary. A controlled vocabulary is available at: |
| Controlled vocabulary | http://id.loc.gov/vocabulary/preservation/relationshipType.html  |
| Usage notes | It is recommended to further categorize the relationship using relationshipSubType. |
| Examples | derivation structural derivation structural derivation structural |
