Duration
https://kerfors.github.io/usdm-overlay/id/assessment/classRole/Duration
Overlay page for the USDM class https://w3id.org/cdisc/usdm/v4/Duration.
Role
- role
- Structured entity
- evidence
- Authored
- basis
- The length of time is held in quantity. text restates the duration as unstructured text, and reasonDurationWillVary is companion text to the boolean durationWillVary. The derived rule ties two read text attributes against two values and assigns Text carrier; the substance is the quantity.
The length of time during which something continues.
Derived role: Text carrier by rule-role-text-carrier. The authored role refines it.
Profile
Attributes of the class and its superclasses; payload excludes housekeeping, naming and notes.
- has naming
- false
- is referenced
- false
- composed in (classes)
- 2
- read text
- 2
- string structure
- 0
- value
- 2
- reference
- 0
- part
- 0
Attributes declared on this class
| Attribute | Range | Content kind | Evidence | Rule or rationale |
|---|---|---|---|---|
| durationWillVary | boolean | Typed value | Model-stated | rule-typed-value |
| extensionAttributes | ExtensionAttribute | Extension point | Model-stated | rule-extension-point |
| id | string | Identity | Model-stated | rule-identity |
| instanceType | string | Type discriminator | Model-stated | rule-type-discriminator |
| quantity | QuantityRange | Composition | Model-stated | rule-composition |
| reasonDurationWillVary | string | Companion text derived: Unclassified string | Authored | Free text explaining the boolean sibling attribute durationWillVary.The explanation for why the event duration will vary within and/or across subjects. |
| text | string | Unstructured text (definition-stated) | Definition-stated | rule-unstructured-textAn instance of unstructured text that represents the event duration. |