coefficient
Let an agent handle coefficients by property, definition, units, measurement conditions and sources, and separate the algebraic sense.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Value Which coefficient.
Identify
Property.
Identify
Coefficient identity.
- Which coefficient is meant, and for which property? definition
- What are its symbol and units? definition
Lookup
Data.
Lookup
Reference value.
- What value applies for these materials and conditions? measurement
- From which reference source? provenance
Measurement Testing.
Method
Test standard.
Method
Test method.
- Which standard test method measures it? provenance
- What conditions are specified? definition
Uncertainty
Variation.
Uncertainty
Uncertainty.
- How much does the value vary between samples or conditions? measurement
- Is a safety factor needed? boundary
Use Calculations.
Equation
Applying it.
Equation
Application.
- How is the coefficient used in this calculation? action
- Are units consistent? boundary
Design
Engineering.
Design
Design use.
- Is the value appropriate for a safety-critical design? boundary
- Should an engineer review it? action
Senses Disambiguation.
Algebra
Numerical factor.
Algebra
Algebraic sense.
- Is the numerical factor of an algebraic term meant? boundary
- Which entry fits? action
Statistics
Correlation coefficient.
Statistics
Statistical sense.
- Is a statistical coefficient such as correlation meant? boundary
- Which entry fits? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- noun.quantity
- Plane
- XCT
- Domain
- XCT.QTY
- Facets: substance
- abstract
- Facets: origin
- conceptual
- Facets: agency
- inert
- Facets: mobility
- not-applicable
- Facets: scale
- not-applicable
- Facets: affordances
- observable
- Other names and narrower kinds
- absorption coefficient, coefficient of absorption, absorptance, drag coefficient, coefficient of drag, coefficient of friction, coefficient of mutual induction, mutual inductance, coefficient of self induction, self-inductance, modulus, coefficient of elasticity
What it is Filled
A constant number that measures some property or characteristic of a material or system, such as the absorption coefficient, drag coefficient, coefficient of friction or coefficient of thermal expansion; in algebra, also the numerical factor of a term.
Why it exists Filled
Let an agent handle coefficients by property, definition, units, measurement conditions and sources, and separate the algebraic sense.
Distinguishing features Filled
- Characterises a property
- Depends on conditions
- Measured experimentally
- Used in design equations
What robots and AI may and may not do Filled
Must not
- Use a coefficient outside the conditions it was measured for without saying so.
- Mix units or conventions between sources.
- Present an estimated coefficient as a measured one.
Only with a human decision
- Using coefficients in safety-critical design such as brakes, structures or heat shields.
May
- Report coefficients with their units, conditions and source.
- Check that a coefficient applies to the material and conditions in question.
Moral aspects Filled
- Engineering safety depends on correct material properties.
Who is affected
- Engineers and designers
- Users of products and structures
Owners Filled
Steward
Nobody owns the concept; whoever publishes a value answers for it.
Links to other meta-models Filled
parent
- oewn-13606632-n - registry parent class
related
- physical constant or parameter - category
- engineering calculation - application
- experiment - method
- equilibrium constant - related quantity
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.coefficient
- Open English WordNet: oewn-13607325-n
Direct properties not applicable Not applicable
Not applicable
Plane XCT: no invented physical properties.
Recognition optional Filled
- Symbols such as mu, Cd, alpha
- Usually dimensionless or with specific units
- Algebraic coefficients multiply variables
- Not physical; numbers in tables and equations.
Capabilities and actions required Filled
- look up coefficient values with conditions
- use coefficients in calculations
- understand how coefficients are measured
- separate the algebraic sense
Hazards and failure modes required Filled
- Using values outside tested conditions
- Unit errors
Standards and interfaces required Filled
- Test standards for measuring coefficients such as ASTM and ISO methods
Context of use required Filled
- Quantifying material and system behaviour in engineering and science.
- friction coefficients
- drag and lift coefficients
- absorption and attenuation coefficients
- thermal expansion coefficients
- algebraic coefficients
Sources Filled
- Open English WordNet 2024, synset oewn-13607325-n - sense and gloss of the concept
- Wiktionary: coefficient - word senses and usage
Open questions
- Should each coefficient be a separate entry?
- How should data tables be linked?
- How should the algebraic sense be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-coefficient/spec.json