LevelStructure - Properties and Relationships — DDI 4.0 dev documentation

# LevelStructure - Properties and Relationships

## Properties

Name | Type | Cardinality
--- | --- | ---
containsLevel | Level | 0..n
name | ObjectName | 0..n
usage | InternationalStructuredString | 0..1
validDateRange | DateRange | 0..1

### containsLevel

The association of a level number in an ordered array with the description of that level

### name

A linguistic signifier. Human understandable name (word, phrase, or mnemonic) that reflects the ISO/IEC 11179-5 naming principles. If more than one name is provided provide a context to differentiate usage.

### usage

Explanation of the ways in which some decision or object is employed. Supports the use of multiple languages and structured text. Use in locations where you need to relay information on the usage of the instantiated class.

### validDateRange

The dates for which the level structure is valid. A structured DateRange with start and end Date (both with the structure of Date and supporting the use of ISO and non-ISO date structures); Use to relate a period with a start and end date.