| Semantic unit | 1.4.1 significantPropertiesType |
| Definition | The aspect, facet, or attribute of an object which is being recorded as a significant property. |
| Obligation | Optional |
| Repeatability | Not repeatable |
| Rationale | Repositories may choose to describe significant properties based on a particular aspect or attribute of an object. |
| Data constraint | None |
| Usage notes | This semantic unit is optional and may be used as part of a facet:detail pair with significantPropertiesValue. |
| Examples | content structure behavior page count page width typeface hyperlinks image count content structure behavior page count page width typeface [for an embedded image] color space |