Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
moisture meter
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
ISO 15926-4's definition is capability-based ('intended to measure and indicate a MOISTURE'), matching the same functional pattern already used for the sibling 'humidity analyser' entry (genus Instrument, HumidityMeasurementFunction, equivalent) -- MOISTURE and HUMIDITY are distinct properties in ISO 15926-4 (moisture applies to any medium; humidity is specifically water vapour in air), so a separate function is warranted rather than reuse.
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
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Expert review
Axiomatization steps
1
Identity-Giving Function
✓ done
MoistureMeasurementFunction → MoistureMeasurementProcess ⊑ MeasurementProcess
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COPI-Core operation
MeasurementProcess via process parent MeasurementProcess
LLM rationale:
No already-enriched function is co-extensional: MOISTURE (any medium) is explicitly distinct from HUMIDITY (water vapour in air specifically) in ISO 15926-4's own taxonomy, so HumidityMeasurementFunction is not reused; mirrors that sibling's pattern (function_parent=DesignedFunction directly) exactly.
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Expert review
2
Genus Proximus
✓ done
Instrument · MaterialArtifact
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Genus (genus proximum)
Most specific superclass — may be a domain class like "Valve" or an IOF-Core root.
BFO/IOF-Core Root
bfo:Object branch
bfo:ObjectAggregate branch
bfo:ImmaterialEntity branch
LLM rationale:
Matches the already-enriched 'humidity analyser' sibling's genus exactly; MEASURING INSTRUMENT (the literal ISO 15926-4 parent) is not itself an enriched cluster, so the concrete genus Instrument is used directly.
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Expert review
3
Differentia Specifica
✓ done
∃bearerOf.MoistureMeasurementFunction
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Conditions that distinguish
Moisture Meter
from sibling classes under genus
Instrument.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
Functional type: the identity-giving function alone is necessary and sufficient, matching the humidity analyser precedent's minimal differentia pattern.
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Expert review
4
Necessary Parts
✓ done
MoistureSensingElement, DigitalDisplay
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Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
Both parts are named verbatim in the ISO 15926-4 primary definition itself and are structurally distinct (sensing vs. display), so both are asserted as necessary.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfFluid → MeasurementInformationContentEntity + VisualIndication
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Standard sensing-and-indication signature, matching other Instrument-genus measurement devices. [Corrected 2026-09-10: replaced retired InformationBearingArtifact (ODR-021, resolved 2026-08-08) with two outputs matching sibling 'humidity analyser' exactly (MeasurementInformationContentEntity + VisualIndication), consistent with the DigitalDisplay necessary_part already asserted.]
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Expert review
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Alternative labels
none
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Synonyms / alternative labels (comma-separated) — skos:altLabel
Language auto-detected on export (PT if the label contains accents, EN otherwise).
Properties as BFO qualities
no CFIHOS/DEXPI properties
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No CFIHOS/DEXPI properties found for this cluster.
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Moisture Meter.
Write the restriction block in Turtle syntax (without the leading
rdfs:subClassOf).
Example: [ owl:onProperty :hasPart ; owl:someValuesFrom :Wellhead ]
Cross-standard divergences
none detected yet
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Click "Detect divergences" to analyse cross-standard disagreements for this cluster.
