{ "model": { "rank": 4153, "code": "thing-q169872", "model_id": "vr.tr.symptom", "name": "symptom", "purpose": "Let an agent help people describe symptoms clearly, recognise when symptoms need urgent or routine care, explain what symptoms may mean in general terms, and avoid diagnosis.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.KNW", "industry": "", "version": "", "url": "/models/thing/q169872/", "tier": 2, "score": 78, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 78, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.symptom", "source": { "dataset": "wikidata", "item": "Q169872", "url": "https://www.wikidata.org/wiki/Q169872", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T20:18:40Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 2, "engine": "claude" }, "metaModel": { "id": "THING-Q169872", "registryId": "vr.tr.symptom", "name": "symptom", "version": "0.2.0-wave.2", "entryKind": "thing", "family": "Thing Registry", "domain": [ "INF.KNW" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q169872/", "model": { "registry_id": "vr.tr.symptom", "name": "symptom", "purpose": "Let an agent help people describe symptoms clearly, recognise when symptoms need urgent or routine care, explain what symptoms may mean in general terms, and avoid diagnosis.", "definition": "A subjective experience or change reported by a person that indicates a possible disease or condition, such as pain, fatigue or nausea, as distinct from a sign, which is observed by others; symptoms are gathered in medical history taking, assessed by clinicians and used with signs and tests to reach diagnoses.", "what_it_is_for": "Recognising and communicating health problems.", "affordances": [ "help describe a symptom clearly", "recognise red flag symptoms", "explain common causes in general terms", "prepare for a consultation" ], "distinguishing_features": [ "Subjective experience", "Indicates possible condition", "Gathered in history taking", "Not itself a diagnosis" ], "appearance": "Not physical; experiences reported by a person.", "visual_identification": [ "Reported by the patient", "Subjective", "A sign is observed by a clinician" ], "physical_properties": [], "families_and_kinds": [ "pain symptoms", "systemic symptoms such as fatigue and fever", "organ-specific symptoms", "mental health symptoms", "red flag symptoms" ], "related_models": [ { "relation": "is a kind of", "target": "physiological condition", "why": "category" }, { "relation": "is a kind of", "target": "symptom or sign", "why": "category" }, { "relation": "is assessed by", "target": "health care", "why": "services" }, { "relation": "is related to", "target": "cause", "why": "aetiology" } ], "identifiers": [], "standards_and_regulation": [ "Clinical guidelines on symptom assessment and triage", "Rules on symptom checker tools as medical devices" ], "failure_modes_and_hazards": [ "Agents diagnosing", "Missing red flags", "Anxiety from symptom searching" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "urgent", "name": "Urgent", "description": "Red flags.", "rationale": "Safety first.", "layers": [ { "id": "redflags", "name": "Red flags", "description": "Emergency symptoms.", "findings": [ { "id": "redflags-finding", "name": "Red flags", "description": "Red flags.", "questions": [ { "text": "Does the symptom pattern include red flags such as chest pain, breathing difficulty, sudden weakness or severe bleeding?", "kind": "boundary" }, { "text": "Should emergency services be contacted now?", "kind": "action" } ] } ] }, { "id": "triage", "name": "Triage", "description": "Level of care.", "findings": [ { "id": "triage-finding", "name": "Triage", "description": "Triage.", "questions": [ { "text": "Which level of care does official triage guidance suggest for these symptoms?", "kind": "provenance" }, { "text": "Is the user asking for a diagnosis?", "kind": "boundary" } ] } ] } ] }, { "id": "describe", "name": "Describe", "description": "Communicating symptoms.", "rationale": "Clear description helps.", "layers": [ { "id": "characterise", "name": "Characterise", "description": "Describing a symptom.", "findings": [ { "id": "characterise-finding", "name": "Characterise", "description": "Describing.", "questions": [ { "text": "How can the symptom be described by onset, location, character, duration, triggers and severity?", "kind": "action" }, { "text": "Which associated symptoms matter?", "kind": "action" } ] } ] }, { "id": "prepare", "name": "Prepare", "description": "Consultation preparation.", "findings": [ { "id": "prepare-finding", "name": "Prepare", "description": "Preparation.", "questions": [ { "text": "What should be noted before a consultation, such as timeline and medications?", "kind": "action" }, { "text": "Which questions should be asked?", "kind": "action" } ] } ] } ] }, { "id": "understand", "name": "Understand", "description": "Possible meanings.", "rationale": "General information only.", "layers": [ { "id": "causes", "name": "Causes", "description": "Common causes.", "findings": [ { "id": "causes-finding", "name": "Causes", "description": "Causes.", "questions": [ { "text": "What are common causes of this symptom, according to health sources, without diagnosing?", "kind": "provenance" }, { "text": "Which factors change the likely causes?", "kind": "boundary" } ] } ] }, { "id": "signs", "name": "Signs", "description": "Symptoms versus signs.", "findings": [ { "id": "signs-finding", "name": "Signs", "description": "Signs.", "questions": [ { "text": "How do symptoms differ from signs and test results?", "kind": "definition" }, { "text": "How do clinicians combine them?", "kind": "definition" } ] } ] } ] }, { "id": "wellbeing", "name": "Wellbeing", "description": "Living with symptoms.", "rationale": "Support.", "layers": [ { "id": "chronic", "name": "Chronic", "description": "Chronic symptoms.", "findings": [ { "id": "chronic-finding", "name": "Chronic", "description": "Chronic symptoms.", "questions": [ { "text": "Which support exists for managing chronic symptoms such as pain or fatigue?", "kind": "provenance" }, { "text": "Which patient organisations help?", "kind": "provenance" } ] } ] }, { "id": "anxiety", "name": "Anxiety", "description": "Health anxiety.", "findings": [ { "id": "anxiety-finding", "name": "Anxiety", "description": "Health anxiety.", "questions": [ { "text": "Is symptom searching causing distress?", "kind": "boundary" }, { "text": "Where can support for health anxiety be found?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should common symptoms be separate entries?", "How should triage guidance be localised?", "How should symptom checkers be regulated?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "discipline or field of knowledge", "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 symptom, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent help people describe symptoms clearly, recognise when symptoms need urgent or routine care, explain what symptoms may mean in general terms, and avoid diagnosis.", "characteristics": { "substance": "information", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "read and interpreted" ], "distinguishingFeatures": [ "Described in 78 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 symptom, and on what evidence are they told apart?" ], "whatItIsMadeOf": "content that has to be carried by something else", "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": [ "read it and act on what it says" ], "howItIsRecognised": [], "relatedModels": [], "standing": "Described in 78 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one symptom from another, and a symptom 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 symptom, 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 symptom, 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 symptom 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 symptom, 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 symptom, 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 symptom 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 symptom 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 symptom, 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 symptom, 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 symptom 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 symptom from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a symptom, 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 symptom, 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 symptom 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 symptom 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 symptom between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a symptom, 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 symptom, 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 symptom 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 symptom, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a symptom 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 symptom, 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 symptom, 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 symptom is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "content-and-access", "name": "Content, encoding and access", "description": "What a symptom says, how it is encoded and who may read it.", "rationale": "An informational thing carries content that can be copied, versioned and withheld, none of which its physical carrier explains.", "layers": [ { "id": "content-and-encoding", "name": "Content and encoding", "description": "The content itself, its format and its language.", "findings": [ { "id": "content-and-format", "name": "Content, format and language", "description": "What a symptom contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a symptom, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "content-and-format-q02", "text": "Who or what asserted this about the content of a symptom, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "content-and-format-q03", "text": "What may an agent decide or do once the content of a symptom is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "access-and-rights", "name": "Access, rights and retention", "description": "Who may read, copy or change it, and for how long it is kept.", "findings": [ { "id": "access-rules", "name": "Access rules and retention", "description": "The permissions attached to a symptom and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a symptom, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "access-rules-q02", "text": "Who or what asserted this about access to a symptom, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "access-rules-q03", "text": "What may an agent decide or do once access to a symptom is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "subject-and-method", "name": "Subject matter and method", "description": "What symptom studies and how it establishes anything.", "rationale": "A field is identified by its questions and its methods, and those are what distinguish it from the fields next to it.", "layers": [ { "id": "subject", "name": "Subject matter", "description": "The questions it takes as its own.", "findings": [ { "id": "subject-record", "name": "Questions and objects of study", "description": "What it is about, stated so a neighbouring field can be told apart.", "questions": [ { "id": "subject-record-q01", "text": "What questions and objects does symptom take as its own?", "kind": "definition" }, { "id": "subject-record-q02", "text": "Which questions does it share with a neighbouring field, and who claims them?", "kind": "boundary" } ] } ] }, { "id": "method", "name": "Method and evidence", "description": "How claims are established and what counts as evidence.", "findings": [ { "id": "method-record", "name": "Methods and standards of evidence", "description": "The methods used and what they are taken to establish.", "questions": [ { "id": "method-record-q01", "text": "By what methods does symptom establish claims, and what counts as sufficient evidence?", "kind": "provenance" }, { "id": "method-record-q02", "text": "What kind of claim can this field not settle, and where should an agent look instead?", "kind": "action" } ] } ] } ] }, { "id": "institutions-and-classification", "name": "Institutions and classification", "description": "Where symptom is practised and how catalogues place it.", "rationale": "The institutional footprint is the evidence that a field exists as a field rather than as a topic.", "layers": [ { "id": "institutions", "name": "Institutional markers", "description": "Societies, journals, degrees and departments.", "findings": [ { "id": "institution-record", "name": "Bodies and venues", "description": "Where the field organises itself.", "questions": [ { "id": "institution-record-q01", "text": "Which societies, journals or degrees mark symptom as an established field?", "kind": "provenance" }, { "id": "institution-record-q02", "text": "What would show that it is emerging or dissolving rather than established?", "kind": "boundary" } ] } ] }, { "id": "classification", "name": "Classification schemes", "description": "Where library and research classifications put it.", "findings": [ { "id": "classification-record", "name": "Codes and their disagreements", "description": "The classification codes that place it, and where they differ.", "questions": [ { "id": "classification-record-q01", "text": "Which classification schemes place symptom, under what codes?", "kind": "definition" }, { "id": "classification-record-q02", "text": "Where do those schemes disagree about its scope?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a symptom 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 symptom and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a symptom, 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 symptom, 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 symptom 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 symptom is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a symptom, 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 symptom, 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 symptom is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 6, "layers": 12, "findings": 14, "questions": 38 } } } }