Published
mass
vr.tr.mass · thing-q11423
Let an agent handle mass by measurement, units, uncertainty and context, including body weight, respectfully and without health judgements.
Thing Registry Cross-cutting context XCT.QLT
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Measurement Weighing.
Value
Result.
Value
Mass value.
- What is the mass, in which unit? measurement
- What is the uncertainty? measurement
Instrument
Scale.
Instrument
Instrument.
- Which scale was used, and is it calibrated? provenance
- Is it legal for trade? boundary
Physics Concept.
Concept
Inertia.
Concept
Concept.
- Is mass or weight as force meant? boundary
- How are they related? definition
Units
Conversion.
Units
Units.
- How does this convert between kg and lb? measurement
- Is precision preserved? boundary
Body mass Health context.
Health
Guidance.
Health
Health guidance.
- Is professional guidance needed to interpret this weight? boundary
- Is judgement avoided? boundary
Infants
Birth weight.
Infants
Birth and infant weight.
- How is infant weight tracked against growth charts? definition
- Who advises parents? action
Trade Legal metrology.
Rules
Measuring instruments.
Rules
Metrology rules.
- Which rules apply to weighing for sale? provenance
- Is the instrument verified? provenance
Labels
Net quantity.
Labels
Net quantity.
- Is the declared net mass accurate? boundary
- What tolerance applies? measurement
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.QLT
- Other names and narrower kinds
- human body weight, ideal body weight, birth weight, optimum weight in sport, human birth mass, animal birth mass, dry weight, landing weight, wet weight, set-up weight, payload weight, gross weight
What it is Filled
A property of a physical body measuring its amount of matter and its resistance to acceleration; the SI unit is the kilogram. In everyday use it is often called weight, as in body weight.
Why it exists Filled
Let an agent handle mass by measurement, units, uncertainty and context, including body weight, respectfully and without health judgements.
Distinguishing features Filled
- Amount of matter and inertia
- Differs from weight as force
- Additive quantity
- Legal metrology for trade
What robots and AI may and may not do Filled
Must not
- Report a mass from an uncalibrated or tampered scale in trade or medicine.
- Confuse mass and weight where the difference matters, such as in engineering or dosing.
- Comment on or record a person's body weight without their consent.
- Shame or judge a person for their body weight.
Only with a human decision
- Using a body weight measurement for a medical or dosing decision.
May
- Measure and report mass with calibrated instruments, stating the unit and uncertainty.
- Convert between units of mass correctly.
Moral aspects Filled
- Honest measurement protects buyers and patients.
- Body weight is sensitive personal data tied to stigma.
Who is affected
- Buyers and sellers in trade
- Patients
- People whose weight is recorded
Owners Filled
Steward
Nobody owns the quantity; national metrology institutes keep the reference standards.
Links to other meta-models Filled
parent
- Q107715 - registry parent class
- Q117865208 - registry parent class
- Q141187343 - registry parent class
- Q141256417 - registry parent class
- Q181175 - registry parent class
- Q3386703 - registry parent class
related
- physical quantity - category
- kilogram - unit
- weight - force
- density and volume - quantities
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.mass
- Wikidata: Q11423 (https://www.wikidata.org/wiki/Q11423)
- SI base quantity: M dimension symbol
Direct properties not applicable Not applicable
- SI unit: kilogram kg - defined via the Planck constant since 2019
Plane XCT: no invented physical properties.
Recognition optional Filled
- Values in kg, g, lb
- Scale readings
- Weight as force in newtons is a different quantity
- Not visible; measured with balances and scales.
Capabilities and actions required Filled
- weigh on calibrated scales
- convert units
- state uncertainty
- track body weight with professional guidance
Hazards and failure modes required Filled
- Confusing mass and weight
- Uncalibrated scales
- Stigmatising body weight
Standards and interfaces required Filled
- SI Brochure
- OIML R 76 non-automatic weighing instruments
- EU Measuring Instruments Directive
Context of use required Filled
- Quantifying matter in science, trade, medicine and engineering.
- inertial and gravitational mass
- rest mass
- body mass
- birth mass
- mass in trade
Sources Filled
- Wikidata item Q11423: mass - identity and sense of the item
- Wikipedia: Mass - general description of the item
Open questions
- Should body mass be a separate entry?
- How should mass and weight be linked?
- How should health contexts be routed?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q11423/spec.json