Schemas / Book
rig.book.subject
v0.31.0 · draft 4 fields 1 required
Fields
| Field | Type | Meaning | |
|---|---|---|---|
work |
entity | required | The book entity |
scheme |
enumthema · bisac · bic · dewey · keyword | optional | thema / bisac / bic / dewey / keyword |
code |
string | optional | Notation in that scheme |
heading |
string | optional | Human heading |
One classification heading of a book. Format when present.
Field meanings follow ONIX for Books Subject. This schema is one heading - not a keyword cloud and not rig.meta.tags.
work is required. Emit at least one of scheme, code, or heading.
A second heading is another entity. Free-form labels that are not a subject scheme stay on rig.meta.tags.
JSON Schema
Resolves at https://rig.works/schemas/rig.book.subject.schema.json —
raw file.
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://rig.works/schemas/rig.book.subject.schema.json",
"title": "rig.book.subject",
"type": "object",
"additionalProperties": false,
"properties": {
"work": {
"$ref": "./_defs.schema.json#/$defs/entity"
},
"scheme": {
"type": "string",
"enum": [
"thema",
"bisac",
"bic",
"dewey",
"keyword"
]
},
"code": {
"$ref": "./_defs.schema.json#/$defs/string"
},
"heading": {
"$ref": "./_defs.schema.json#/$defs/string"
}
},
"required": [
"work"
],
"description": "One classification heading on one work. Field meanings follow ONIX Subject.",
"minProperties": 2
}