{ "model": { "rank": 4526, "code": "thing-q131191", "model_id": "vr.tr.body-mass-index", "name": "body mass index", "purpose": "Enable an agent to recognise, calculate, interpret and qualify body mass index as a mass-to-height index without treating it as a direct measurement of body fat or a standalone diagnosis.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q131191/", "tier": 2, "score": 74, "payload": { "layer": "wikidata", "aliases": [ "IsoBMI" ], "aliasCount": 1, "merged": 1, "knownIn": 74, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q131191", "url": "https://www.wikidata.org/wiki/Q131191", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T20:26:19Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 22.2, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087d8-c33e-7af1-b49c-c51a37f64c02\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: body mass index\nSense to describe: (none recorded)\nDomain code: XCT.QLT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001", "usd": 0, "recall": true }, "codex": { "seconds": 55.1, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087d8-c345-7241-b505-ef92097e9303\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: body mass index\nRegistry id: vr.tr.body-mass-index\nPlane / domain: XCT / XCT.QLT\nRegistry definition: (none recorded)\nNames folded into this entry: (" } } }, "metaModel": { "id": "THING-Q131191", "registryId": "vr.tr.body-mass-index", "name": "body mass index", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q131191/", "model": { "registry_id": "vr.tr.body-mass-index", "name": "body mass index", "purpose": "Enable an agent to recognise, calculate, interpret and qualify body mass index as a mass-to-height index without treating it as a direct measurement of body fat or a standalone diagnosis.", "definition": "Body mass index (BMI) is an anthropometric index calculated as a person's mass in kilograms divided by the square of their height in metres, used to classify weight relative to height and as an indirect screening measure of weight-related health risk.", "scope_statement": "This model owns body mass index (BMI), registry entry vr.tr.body-mass-index, as a derived quantity calculated from body mass and height, including the provenance of an observation, its interpretation under an identified reference framework and the limits governing its use.", "in_scope": [ "The definition of BMI as body mass in kilograms divided by height in metres squared", "Mass and height observations, measurement conditions and calculation provenance", "BMI values, units, precision and changes across comparable observations", "Classification and standardisation under explicitly identified population and age reference frameworks", "Applicability limits and the evidence needed before acting on a BMI result" ], "out_of_scope": [ "Body mass and stature as independently modelled physical quantities", "Direct measurements and estimates of body composition", "Obesity, malnutrition and other clinical conditions as diagnoses", "Complete assessments of cardiometabolic health or individual disease risk", "Dietary, medication, exercise and surgical treatment plans", "Alternative anthropometric indices such as waist-to-height ratio" ], "distinguishing_features": [ "A BMI observation must be reproducible from body mass divided by squared height after appropriate unit conversion.", "BMI has conventional units of kg/m²; a mass value alone or a mass-to-height ratio without squaring height is not BMI.", "A BMI value is distinct from a category assigned to it: the category additionally requires a named interpretation framework.", "BMI-for-age percentiles and z-scores require a reference distribution and are not interchangeable with the underlying BMI value.", "BMI does not distinguish fat mass from lean mass; body-fat percentage cannot be read directly from the index." ], "characteristics": [ { "name": "BMI value", "kind": "measurement", "unit_or_values": "kg/m²", "why_it_matters": "Records the derived quantity independently of classifications or clinical conclusions." }, { "name": "Input body mass", "kind": "measurement", "unit_or_values": "kg, with original value and unit retained", "why_it_matters": "Makes the calculation reproducible and exposes conversion or measurement errors." }, { "name": "Input height or length", "kind": "measurement", "unit_or_values": "m, with original value, unit and measurement method retained", "why_it_matters": "Height is squared in the denominator, and different measurement methods may affect comparability." }, { "name": "Observation pairing", "kind": "relation", "unit_or_values": "Links to the subject and dated mass and height observations", "why_it_matters": "Prevents combining measurements from different subjects or incompatible time points." }, { "name": "Input provenance", "kind": "category", "unit_or_values": "Measured, self-reported, estimated or unknown, recorded separately for each input", "why_it_matters": "Identifies the evidential basis of the result." }, { "name": "Calculation quality", "kind": "state", "unit_or_values": "Unchecked, verified, flagged or not calculable, with reasons", "why_it_matters": "Separates an available number from a reproducible and usable observation." }, { "name": "Interpretation framework", "kind": "relation", "unit_or_values": "Named authority, reference publication, version and applicability criteria", "why_it_matters": "Makes category assignments traceable to a particular convention." }, { "name": "BMI category", "kind": "category", "unit_or_values": "Framework-defined label, unclassified or not applicable", "why_it_matters": "Prevents treating framework-dependent labels as intrinsic properties of the number." }, { "name": "BMI-for-age position", "kind": "measurement", "unit_or_values": "Percentile or z-score with named reference and required demographic inputs", "why_it_matters": "Keeps reference-relative interpretation distinct from raw BMI." }, { "name": "Interpretive applicability", "kind": "state", "unit_or_values": "Supported, qualified, unsupported or unresolved for the stated use", "why_it_matters": "Allows an agent to retain a calculated result while restricting conclusions drawn from it." } ], "affordances": [ "Calculate BMI from compatible mass and height observations while preserving the original inputs.", "Check units, input pairing, calculation arithmetic and reported precision.", "Assign a category or reference-relative position only after checking the selected framework's applicability.", "Compare repeated observations and identify changes in measurement method or reference framework.", "Explain what a BMI result supports and identify additional evidence needed for a proposed decision." ] }, "sources": [], "structure": { "bundles": [ { "id": "index-definition", "name": "Index definition", "description": "Establishes what counts as BMI and separates the quantity from related measures and interpretations.", "rationale": "An agent must recognise the index before calculating it or accepting an imported result.", "layers": [ { "id": "formula-and-units", "name": "Formula and units", "description": "Defines the mathematical operation and its unit conventions.", "findings": [ { "id": "mass-over-squared-height", "name": "Mass over squared height", "description": "BMI is calculated as mass in kilograms divided by height in metres squared.", "questions": [ { "text": "Does the supplied value use mass divided by squared height?", "kind": "definition", "id": "mass-over-squared-height-q01" }, { "text": "What original units and conversion factors were used before calculating kg/m²?", "kind": "measurement", "id": "mass-over-squared-height-q02" } ] } ] }, { "id": "quantity-boundaries", "name": "Quantity boundaries", "description": "Distinguishes BMI from body composition, classifications and diagnoses.", "findings": [ { "id": "index-versus-inference", "name": "Index versus inference", "description": "The calculated index, its assigned category and any health inference must remain distinguishable.", "questions": [ { "text": "Is this record a raw BMI value, a BMI category, a percentile or a clinical conclusion?", "kind": "definition", "id": "index-versus-inference-q01" }, { "text": "Does any proposed interpretation incorrectly equate BMI with body-fat percentage or a diagnosis?", "kind": "boundary", "id": "index-versus-inference-q02" } ] } ] } ] }, { "id": "measurement-and-calculation", "name": "Measurement and calculation", "description": "Connects each BMI result to identifiable inputs and reproducible arithmetic.", "rationale": "Correct arithmetic cannot compensate for incompatible, undocumented or incorrectly converted inputs.", "layers": [ { "id": "input-observations", "name": "Input observations", "description": "Records where mass and height came from and whether they can be paired.", "findings": [ { "id": "compatible-mass-height-pair", "name": "Compatible mass and height pair", "description": "A BMI observation needs mass and height linked to the same subject, with dates and measurement methods available for review.", "questions": [ { "text": "Were mass and height measured, reported or estimated, and on what dates?", "kind": "provenance", "id": "compatible-mass-height-pair-q01" }, { "text": "Was standing height, recumbent length or an estimated stature used, and is that input suitable for the intended interpretation?", "kind": "measurement", "id": "compatible-mass-height-pair-q02" }, { "text": "Are the subject identity and time separation of the two inputs acceptable for this observation?", "kind": "boundary", "id": "compatible-mass-height-pair-q03" } ] } ] }, { "id": "derived-value-quality", "name": "Derived value quality", "description": "Checks reproducibility, precision and consequences of uncertain inputs.", "findings": [ { "id": "reproducible-bmi-result", "name": "Reproducible BMI result", "description": "Retain sufficient input precision to reproduce the result and distinguish calculation errors from uncertainty in measurement.", "questions": [ { "text": "Can the reported BMI be reproduced from the retained inputs before display rounding?", "kind": "measurement", "id": "reproducible-bmi-result-q01" }, { "text": "Could input uncertainty or rounding move the result across a boundary in the selected classification framework?", "kind": "measurement", "id": "reproducible-bmi-result-q02" } ] } ] } ] }, { "id": "reference-based-interpretation", "name": "Reference-based interpretation", "description": "Models the rules that turn a BMI value into a category or reference-relative position.", "rationale": "BMI classifications depend on a reference framework whose population, purpose and version must be explicit.", "layers": [ { "id": "classification-framework", "name": "Classification framework", "description": "Identifies category definitions and the population to which they apply.", "findings": [ { "id": "traceable-category-assignment", "name": "Traceable category assignment", "description": "A category assignment must identify its authority, cutoffs, boundary rules and intended population.", "questions": [ { "text": "Which source and version define the category labels, cutoffs and inclusion of boundary values?", "kind": "provenance", "id": "traceable-category-assignment-q01" }, { "text": "What age, population and use criteria determine whether this classification applies?", "kind": "boundary", "id": "traceable-category-assignment-q02" }, { "text": "Does the framework distinguish descriptive categories from thresholds that trigger further assessment?", "kind": "action", "id": "traceable-category-assignment-q03" } ] } ] }, { "id": "age-relative-interpretation", "name": "Age-relative interpretation", "description": "Handles BMI interpretation that depends on a growth reference.", "findings": [ { "id": "reference-relative-position", "name": "Reference-relative position", "description": "A BMI-for-age percentile or z-score is a separate derived result requiring a named reference and its prescribed inputs.", "questions": [ { "text": "Which growth reference, age precision and sex variable does this calculation require?", "kind": "measurement", "id": "reference-relative-position-q01" }, { "text": "Is the subject within the reference's supported age range, and how are transitions between frameworks handled?", "kind": "boundary", "id": "reference-relative-position-q02" } ] } ] } ] }, { "id": "applicability-and-decisions", "name": "Applicability and decisions", "description": "Governs how an agent uses BMI in individual assessment, repeated observations and population summaries.", "rationale": "A valid BMI calculation may still be insufficient for the conclusion or action being proposed.", "layers": [ { "id": "individual-interpretation-limits", "name": "Individual interpretation limits", "description": "Records circumstances and missing evidence that qualify interpretation.", "findings": [ { "id": "context-qualified-use", "name": "Context-qualified use", "description": "Assess whether factors such as pregnancy, fluid accumulation, limb loss or unusually high muscularity require qualification under the chosen guidance.", "questions": [ { "text": "Which documented circumstances affect the suitability of this BMI interpretation?", "kind": "boundary", "id": "context-qualified-use-q01" }, { "text": "What additional anthropometric or clinical evidence is needed before making the proposed individual decision?", "kind": "action", "id": "context-qualified-use-q02" }, { "text": "Which source supports qualifying or withholding interpretation in this circumstance?", "kind": "provenance", "id": "context-qualified-use-q03" } ] } ] }, { "id": "comparison-and-aggregation", "name": "Comparison and aggregation", "description": "Checks whether longitudinal and population comparisons preserve compatible meanings.", "findings": [ { "id": "comparable-bmi-observations", "name": "Comparable BMI observations", "description": "Interpret changes and summaries alongside measurement methods, reference choices and population composition.", "questions": [ { "text": "Could an apparent change reflect different input methods, growth or a change of classification framework?", "kind": "measurement", "id": "comparable-bmi-observations-q01" }, { "text": "Do population comparisons use compatible age ranges, measurement sources and category definitions?", "kind": "boundary", "id": "comparable-bmi-observations-q02" }, { "text": "Does the proposed conclusion stay within what these BMI observations establish?", "kind": "action", "id": "comparable-bmi-observations-q03" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "This is recall-based information; no sources were consulted.", "Verify the applicable jurisdiction, population, age range and guideline edition before applying classification or treatment thresholds.", "BMI-for-age percentiles and z-scores require a named growth reference; results and category boundaries are not interchangeable across references." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Adult BMI interpreted using fixed cutoffs", "Child and adolescent BMI interpreted relative to age and sex using growth references" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "scheme": "LOINC", "value_or_pattern": "39156-5", "note": "Observation code for body mass index (BMI) [Ratio]." }, { "scheme": "UCUM", "value_or_pattern": "kg/m2", "note": "Unit expression for BMI; identifies the measurement unit, not the concept itself." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "World Health Organization adult BMI classification: underweight below 18.5 kg/m², normal range 18.5 to below 25, overweight at least 25, and obesity at least 30.", "World Health Organization Child Growth Standards and growth reference for ages 5-19 provide BMI-for-age interpretation.", "US Centers for Disease Control and Prevention growth charts provide age- and sex-specific BMI interpretation for children and adolescents." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Screening adults for weight categories that may warrant further assessment.", "Monitoring children's growth using BMI-for-age references.", "Estimating population prevalence and trends in underweight, overweight and obesity.", "Defining eligibility or stratification criteria in clinical studies and some treatment pathways.", "Following changes in weight relative to height over time." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "quantity": "Body mass index", "typical_range": "No universal healthy range; the conventional WHO adult normal category is 18.5 to below 25.", "unit": "kg/m²" }, { "quantity": "BMI-for-age percentile", "typical_range": "Expressed on a 0-100 percentile scale relative to a specified age- and sex-specific reference.", "unit": "percentile" }, { "quantity": "BMI-for-age z-score", "typical_range": "Reference-dependent; zero corresponds to the reference median.", "unit": "dimensionless" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "BMI does not distinguish fat mass from muscle, bone or other components of body mass.", "BMI does not describe fat distribution and can miss elevated risk associated with abdominal adiposity.", "Age, sex, ancestry and body composition affect the relationship between BMI, adiposity and health risk.", "Pregnancy, fluid retention, limb loss and inaccurate height or weight measurements can make standard interpretation misleading.", "Treating a BMI category as a complete individual diagnosis can cause inappropriate reassurance, treatment decisions or stigma." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Some Asian national and clinical guidelines use lower BMI thresholds for risk assessment or intervention because metabolic risk may occur at lower BMI.", "Paediatric classifications differ between WHO references, CDC charts and other national or international reference systems." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "name": "Body mass", "difference": "Body mass measures mass alone; BMI divides mass by squared height." }, { "name": "Body fat percentage", "difference": "Body fat percentage estimates the fraction of mass that is fat; BMI cannot identify that fraction." }, { "name": "Waist circumference", "difference": "Waist circumference measures abdominal size; BMI combines total mass and height." }, { "name": "Obesity", "difference": "Obesity concerns excess adiposity and its health implications; BMI is an indirect index commonly used in its classification." }, { "name": "Ponderal index", "difference": "Ponderal index divides mass by cubed height rather than squared height." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of body mass index this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which authoritative adult and growth-reference frameworks should the publication support, and how should it represent disagreements between their intended uses and thresholds?", "What evidence and guidance should govern population-specific interpretation without treating broad demographic categories as precise descriptions of individuals?", "Which circumstances require qualified interpretation, an alternative measure or withholding classification, and which sources establish those distinctions?", "What input-age, measurement-method and uncertainty rules are defensible for deciding whether a mass and height pair supports the intended use?", "Does an existing Vercy world model already own BMI or an encompassing anthropometric concept to which this registry entry should link?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 17, "questions": 29 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a body mass index, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to recognise, calculate, interpret and qualify body mass index as a mass-to-height index without treating it as a direct measurement of body fat or a standalone diagnosis.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: IsoBMI.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 74 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a body mass index, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "IsoBMI" ] } ], "standing": "Described in 74 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one body mass index from another, and a body mass index from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a body mass index, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a body mass index, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a body mass index is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a body mass index, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a body mass index, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a body mass index is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a body mass index sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a body mass index, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a body mass index, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a body mass index is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a body mass index from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a body mass index, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a body mass index, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a body mass index is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a body mass index passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a body mass index between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a body mass index, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a body mass index, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a body mass index is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a body mass index, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a body mass index is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a body mass index, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a body mass index, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a body mass index is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What body mass index is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of body mass index are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is body mass index operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of body mass index and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of body mass index?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as body mass index?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a body mass index came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a body mass index and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a body mass index, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a body mass index, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a body mass index is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a body mass index is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a body mass index, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a body mass index, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a body mass index is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }