# system_HasSdmReferenceDesignator

- Name: `system_HasSdmReferenceDesignator`
- IRI: `sys:HasSdmReferenceDesignator` (https://w3id.org/altium/cdm/system/HasSdmReferenceDesignator)
- Bounded context: none
- Kind: abstract, mixin
- Is a: [core_Meta](core_Meta.md)
- HTML page: [classes/system_HasSdmReferenceDesignator/](../../classes/system_HasSdmReferenceDesignator/)

A mixin for entities within the System Data Model (SDM) that are identifiable by reference designators

## Attributes

| Field | Range | Cardinality | Description | Relation | Inherited from |
| --- | --- | --- | --- | --- | --- |
| sdmReferenceDesignator | string | 1 | Reference designator |  |  |