Population - Properties and Relationships — DDI 4.0 dev documentation

# Population - Properties and Relationships

## Properties

Name | Type | Cardinality
--- | --- | ---
timePeriodOfPopulation | DateRange | 0..n

### timePeriodOfPopulation

The time period associated with the Population

## Relationships

Name | Type | Cardinality
--- | --- | ---
composedOf | Unit | 0..n
geographyOfPopulation | GeographicUnit | 0..n
narrowsUniverse | Universe | 0..n

### composedOf

Units in the Population

### geographyOfPopulation

The geographic location related to this population. May be repeated for inclusion of multiple locations.

### narrowsUniverse

Reference to a Universe that the Population narrows