Slot: expressions
URI: [odm:slot/expressions](https://cdisc.org/odm2/slot/expressions)
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [Condition](../classes/Condition.md) | A reusable, composable, and nestable logical construct allowing for complex expressions. Conditions are most useful when given a meaningful name and linked to Study Definitions. | no |
| [RangeCheck](../classes/RangeCheck.md) | A validation element that performs a simple comparison check between a referenced item's value and specified values, resolving to a boolean result | no |
| [Method](../classes/Method.md) | A reusable computational procedure that describes how to derive values and can be referenced by Items.
Analysis and Derivation concepts can be implemented by a Method. Properties can be referenced by Parameters in its expressions. | no | | [Analysis](../classes/Analysis.md) | Analysis extends Method to capture analysis-specific metadata including the reason for analysis, its purpose, and data traceability for the results used.
Expressions and parameters from Method can be generic or implementation-specific. | no | ## Properties ### Type and Range | Property | Value | | --- | --- | | Range | NONE | | Domain Of | [Condition](../classes/Condition.md), [RangeCheck](../classes/RangeCheck.md), [Method](../classes/Method.md) | ### Cardinality and Requirements | Property | Value | | --- | --- | ## Identifier and Mapping Information ## Mappings | Mapping Type | Mapped Value | | --- | --- | | self | odm:expressions | | native | odm:expressions | ## LinkML Source
Analysis and Derivation concepts can be implemented by a Method. Properties can be referenced by Parameters in its expressions. | no | | [Analysis](../classes/Analysis.md) | Analysis extends Method to capture analysis-specific metadata including the reason for analysis, its purpose, and data traceability for the results used.
Expressions and parameters from Method can be generic or implementation-specific. | no | ## Properties ### Type and Range | Property | Value | | --- | --- | | Range | NONE | | Domain Of | [Condition](../classes/Condition.md), [RangeCheck](../classes/RangeCheck.md), [Method](../classes/Method.md) | ### Cardinality and Requirements | Property | Value | | --- | --- | ## Identifier and Mapping Information ## Mappings | Mapping Type | Mapped Value | | --- | --- | | self | odm:expressions | | native | odm:expressions | ## LinkML Source
name: expressions
domain_of:
- Condition
- RangeCheck
- Method