quantity value

• CURIE: gmeow:quantityValue
• IRI: https://blackcatinformatics.ca/gmeow/quantityValue
• Category: property
• Defined by: gmeow:slices/observations
• Box roles: RBox role (What is this?)

The numeric value of a scalar quantity, as an xsd:decimal. Functional: a scalar quantity has exactly one numeric value. Meaningful only with its unit (gmeow:hasUnit) — no silent units.

Structure

Property shape: datatype property; gmeow:ScalarQuantity -> xsd:decimal; functional

Practical Pattern

Use gmeow:quantityValue from gmeow:ScalarQuantity to xsd:decimal when the relationship itself belongs in the native GMEOW graph.

Example Snippets

These snippets are generated from canonical slice examples and trimmed to the Turtle blocks where this term appears.

Temperature Reading

• Source: slices/core/observations/examples/temperature-reading.ttl
• Examples catalog: open in catalog#example-slices-core-observations-examples-temperature-reading

# --- The result wrapper: value + unit + uncertainty, not a bare literal.
ex:temp a gmeow:ScalarQuantity ;
    gmeow:quantityValue       "22.5"^^xsd:decimal ;
    gmeow:quantityUncertainty "0.1"^^xsd:decimal ;
    gmeow:hasUnit             <http://qudt.org/vocab/unit/DEG_C> .

Spatial Bins

• Source: slices/extensions/aggregation/examples/spatial-bins.ttl
• Examples catalog: open in catalog#example-slices-extensions-aggregation-examples-spatial-bins

# The result is a scalar with its unit (a Quantity must declare exactly one unit,
# P11); a count of persons-per-household is the dimensionless QUDT number unit.
ex:avgHouseholdSize a gmeow:ScalarQuantity ;
    gmeow:quantityValue "2.4"^^xsd:decimal ;
    gmeow:hasUnit       <http://qudt.org/vocab/unit/NUM> .

Common Companion Terms

gmeow:ScalarQuantity

Projects To

External Equivalences

Equivalent or closely aligned targets: qudt

Linkages

Generated from the canonical mapping DSL. SSSOM files are the generated public interchange form for term equivalences.

Term Equivalences

Projection Coverage

Usage Advice

Use when

• Use to carry the bare numeric magnitude of a gmeow:ScalarQuantity (or its aliases) — the literal that, paired with gmeow:hasUnit, makes the reading meaningful.

Avoid when

• Avoid publishing or comparing it without its gmeow:hasUnit (no silent units), avoid it for money (use gmeow:monetaryValue, whose currency frame is required), and avoid asserting two values — it is functional.

How to use

• Put the magnitude here as xsd:decimal, name the unit with gmeow:hasUnit, the spread with gmeow:quantityUncertainty, and the ontic model with gmeow:hasDeterminacy; consumers read magnitude and unit together.

Examples

• ex:temp22 gmeow:quantityValue 22.5.