Annotation

Extensible key-value-unit triple that expresses a semantic assertion. An Annotation can be bundled in a Descriptor or attached directly to a Sample or Data entity.

Schema.org type: schema.org/PropertyValue

Properties

Property	Type	Required	Description
`id`	Text	MUST	Unique identifier for the annotation
`type`	Text	MUST	`Annotation`
`additionalType`	Text	COULD	Additional semantic type or subtype discriminator
`name`	Text	MUST	Key or property name
`value`	Text, Number	SHOULD	Asserted value
`unit`	Text	COULD	Unit associated with the asserted value

Relationships

flowchart TD
    name@{ shape: stadium, label: "string" }
    value@{ shape: stadium, label: "string or number" }
    unit@{ shape: stadium, label: "string" }
    additionalType@{ shape: stadium, label: "string" }

    Descriptor --annotations--> Annotation
    Sample --additionalProperty--> Annotation
    Data --additionalProperty--> Annotation
    Annotation --name--> name
    Annotation --value--> value
    Annotation --unit--> unit
    Annotation --additionalType--> additionalType