Slot: Reason Uncertainty Column Is Missing (value_uncertainty_column_missing_reason)

Reason value_uncertainty_column is null.

Tier: optional

Why this slot matters

A bare null cannot be audited: it could mean the source has no per-value uncertainty, the pipeline dropped it, or the producer forgot to record it. Stating the reason makes the absence deliberate and lets reviewers tell "unavailable" from "lost", which matters for reproducing the extraction.

In plain terms

When there is no uncertainty column, this slot says why — for example "the upstream product does not provide one" versus "it exists upstream but was not extracted".

URI: envar:slot/value_uncertainty_column_missing_reason

Applicable Classes

Name	Description	Modifies Slot
DataLayout	How the companion data file (CSV / parquet) is laid out and how this record's...	no

Properties

Type and Range

Property	Value
Range	MissingReasonEnum
Domain Of	DataLayout

Cardinality and Requirements

Property	Value

Examples

Value
not_provided_by_source

Identifier and Mapping Information

Annotations

property	value
tier	optional
justification	A bare null cannot be audited: it could mean the source has no per-value uncertainty, the pipeline dropped it, or the producer forgot to record it. Stating the reason makes the absence deliberate and lets reviewers tell "unavailable" from "lost", which matters for reproducing the extraction.
explanation	When there is no uncertainty column, this slot says why — for example "the upstream product does not provide one" versus "it exists upstream but was not extracted".

Schema Source

• from schema: https://w3id.org/linkml/microschemas/envar

Mappings

Mapping Type	Mapped Value
self	envar:value_uncertainty_column_missing_reason
native	envar:value_uncertainty_column_missing_reason

LinkML Source

name: value_uncertainty_column_missing_reason
annotations:
  tier:
    tag: tier
    value: optional
  justification:
    tag: justification
    value: 'A bare null cannot be audited: it could mean the source has no per-value
      uncertainty, the pipeline dropped it, or the producer forgot to record it. Stating
      the reason makes the absence deliberate and lets reviewers tell "unavailable"
      from "lost", which matters for reproducing the extraction.'
  explanation:
    tag: explanation
    value: When there is no uncertainty column, this slot says why — for example "the
      upstream product does not provide one" versus "it exists upstream but was not
      extracted".
description: Reason `value_uncertainty_column` is null.
title: Reason Uncertainty Column Is Missing
examples:
- value: not_provided_by_source
from_schema: https://w3id.org/linkml/microschemas/envar
rank: 1000
domain_of:
- DataLayout
range: MissingReasonEnum