Slot: Activity Definition ID (activity_definition_id)
Unique identifier for this Activity Definition.
URI: [includedcc:activity_definition_id](https://includedcc.org/include-access-model/activity_definition_id)
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [EncounterDefinition](EncounterDefinition.md) | A definition of an encounter type in this study, ie, an event at which data w... | yes |
| [ActivityDefinition](ActivityDefinition.md) | A definition of an activity in this study, eg, a biospecimen collection, assa... | yes |
| [Assay](Assay.md) | A specific assay that was performed on given subject(s) or sample(s) | no |
## Properties
### Type and Range
| Property | Value |
| --- | --- |
| Range | [ActivityDefinition](ActivityDefinition.md) |
| Domain Of | [EncounterDefinition](EncounterDefinition.md), [ActivityDefinition](ActivityDefinition.md), [Assay](Assay.md) |
### Cardinality and Requirements
| Property | Value |
| --- | --- |
## Identifier and Mapping Information
### Schema Source
* from schema: https://includedcc.org/include-access-model
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | includedcc:activity_definition_id |
| native | includedcc:activity_definition_id |
## LinkML Source
name: activity_definition_id
description: Unique identifier for this Activity Definition.
title: Activity Definition ID
from_schema: https://includedcc.org/include-access-model
rank: 1000
domain_of:
- EncounterDefinition
- ActivityDefinition
- Assay
range: ActivityDefinition