Slot: keySequence
Ordered list of Items that define the dataset key structure for sorting and uniqueness. Each entry is an OID reference to an Item in the items array. Order determines sorting precedence, merge operations, and record uniqueness. These are allowed to be null, unlike stricter dataset dimensions or primary keys.
URI: dds:slot/keySequence
Applicable Classes
| Name | Description | Modifies Slot |
|---|---|---|
| ItemGroup | A collection element that groups related items or subgroups within a specific context, used for tables, FHIR resource profiles, biomedical concept specializations, or form sections | no |
| DataStructureDefinition | A structural element that defines the organization of a data cube for analysis, including dimensions, attributes, and measures | no |
Properties
Type and Range
| Property | Value |
|---|---|
| Range | Item |
| Domain Of | ItemGroup |
Cardinality and Requirements
| Property | Value |
|---|---|
| Multivalued | Yes |
| ### Slot Characteristics |
| Property | Value |
|---|---|
| Owner | ItemGroup |
Identifier and Mapping Information
Schema Source
- from schema: https://cdisc.org/dds
Mappings
| Mapping Type | Mapped Value |
|---|---|
| self | dds:keySequence |
| native | dds:keySequence |
| close | odm:ItemRef.KeySequence, sdmx:DimensionDescriptor |
LinkML Source
name: keySequence
description: Ordered list of Items that define the dataset key structure for sorting
and uniqueness. Each entry is an OID reference to an Item in the items array. Order
determines sorting precedence, merge operations, and record uniqueness. These are
allowed to be null, unlike stricter dataset dimensions or primary keys.
from_schema: https://cdisc.org/dds
close_mappings:
- odm:ItemRef.KeySequence
- sdmx:DimensionDescriptor
rank: 1000
owner: ItemGroup
domain_of:
- ItemGroup
range: Item
multivalued: true