Schema ID: https://schema.nfh.global/DatasetItem/v1.0
Status: Superseded by v1.1
Metadata for a dataset product in a Beckn catalog, extending schema.org Dataset. Attached to Item.itemAttributes in on_discover. Covers static, recurring, and real-time datasets delivered inline, by download, in a data enclave, or off-channel.
| File | Description |
|---|---|
attributes.yaml |
OpenAPI 3.1 schema |
context.jsonld |
JSON-LD 1.1 term → IRI mappings |
vocab.jsonld |
RDF vocabulary — class and property definitions |
Required: schema:identifier, schema:name, schema:temporalCoverage.
| Field | Type | Description |
|---|---|---|
schema:* |
— | Standard schema.org Dataset fields: description, spatialCoverage, license, distribution, variableMeasured, measurementTechnique, usageInfo, conditionsOfAccess, temporalResolution, spatialResolution, creator, isBasedOn |
dataset:refreshType |
string | Refresh model: STATIC, RECURRING, REAL_TIME |
dataset:refreshFrequency |
string | Refresh cadence for recurring / real-time datasets |
dataset:granularity |
string | Observation unit granularity (e.g. GRID_DAILY, STATION_HOURLY) |
dataset:rowCountEstimate |
integer | Approximate row count |
dataset:columnCount |
integer | Number of columns |
dataset:sensitivityLevel |
string | Sensitivity classification (PUBLIC, INTERNAL, CONFIDENTIAL, …) |
dataset:verticalRange |
string | object | Vertical extent (e.g. surface, 0–2 km AGL) |
dataset:dataType |
string | Data representation (e.g. GriddedProbabilityField, TimeSeries) |
dataset:rawUpdateFrequency |
string | Update frequency of the underlying raw dataset |
dataset:latestRawDataAt |
date-time | Timestamp of the latest raw data feeding this dataset |
dataset:accessMethod |
enum | INLINE, DOWNLOAD, DATA_ENCLAVE, OFF_CHANNEL |
dataset:dataPayload |
object | Self-describing JSON-LD payload carried inline when accessMethod is INLINE (@context must resolve to the payload schema) |
dataset:qualityFlags |
object | Quality metrics: gapFilledPercent, outlierRemovedPercent, latencyMinutes, uptime99DayPercent, validationMethod |
https://raw.githubusercontent.com/beckn/DDM/main/specification/schema/DatasetItem/v1.0/context.jsonld