Slot: expression
The actual text of the formal expression (renamed from 'code' for disambiguation).
URI: [odm:slot/expression](https://cdisc.org/odm2/slot/expression)
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [FormalExpression](../classes/FormalExpression.md) | A computational element that defines the execution of a data derivation within a specific context | no |
## Properties
### Type and Range
| Property | Value |
| --- | --- |
| Range | [String](../types/String.md) |
| Domain Of | [FormalExpression](../classes/FormalExpression.md) |
### Cardinality and Requirements
| Property | Value |
| --- | --- |
| Required | Yes |
### Slot Characteristics
| Property | Value |
| --- | --- |
| Owner | [FormalExpression](../classes/FormalExpression.md) |
## Aliases
* code
## Identifier and Mapping Information
### Schema Source
* from schema: https://cdisc.org/dds
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | odm:expression |
| native | odm:expression |
## LinkML Source
name: expression
description: The actual text of the formal expression (renamed from 'code' for disambiguation).
from_schema: https://cdisc.org/dds
aliases:
- code
rank: 1000
owner: FormalExpression
domain_of:
- FormalExpression
range: string
required: true