Custom metadata structures overview

Custom metadata in Atlan is structurally composed of two levels:

1. The custom metadata definition (sometimes referred to as set) itself, defined as a CustomMetadataDef
2. The attributes (or properties) within that custom metadata set, each defined as an AttributeDef

erDiagram
    CustomMetadataDef ||--o{ AttributeDef : contains

Through Atlan's APIs, you can create your own custom metadata sets and attributes programmatically.

Once the structures exist, you can then also change custom metadata values on assets themselves.

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