{ "model": { "rank": 5529, "code": "thing-q64513386", "model_id": "vr.tr.bulimia-nervosa", "name": "bulimia nervosa", "purpose": "Enable an agent to recognise evidence consistent with bulimia nervosa, represent its course and risks, and support clinician-led assessment, care and recovery monitoring.", "family": "Thing Registry", "category": "Information and virtual systems", "status": "research-draft", "kind": "thing", "plane": "INF", "domain": "INF.KNW", "industry": "", "version": "", "url": "/models/thing/q64513386/", "tier": 2, "score": 66, "payload": { "layer": "wikidata", "aliases": [ "atypical bulimia nervosa", "exercise bulimia", "bulimia nervosa, susceptibility to, 2" ], "aliasCount": 3, "merged": 3, "knownIn": 66, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q64513386", "url": "https://www.wikidata.org/wiki/Q64513386", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T22:33:52Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 21.9, "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: 01a0884d-45a1-79a0-924a-713f9ecab9bd\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: bulimia nervosa\nSense to describe: (none recorded)\nDomain code: XCT.STA\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001", "usd": 0, "recall": true }, "codex": { "seconds": 72, "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: 01a0884d-4598-7f83-83ca-0e16fa3466e6\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: bulimia nervosa\nRegistry id: vr.tr.bulimia-nervosa\nPlane / domain: XCT / XCT.STA\nRegistry definition: (none recorded)\nNames folded into this entry: (" } } }, "metaModel": { "id": "THING-Q64513386", "registryId": "vr.tr.bulimia-nervosa", "name": "bulimia nervosa", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.STA" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q64513386/", "model": { "registry_id": "vr.tr.bulimia-nervosa", "name": "bulimia nervosa", "purpose": "Enable an agent to recognise evidence consistent with bulimia nervosa, represent its course and risks, and support clinician-led assessment, care and recovery monitoring.", "definition": "Bulimia nervosa is an eating disorder characterized by recurrent binge-eating episodes involving loss of control, recurrent inappropriate compensatory behaviours intended to prevent weight gain, and self-evaluation unduly influenced by body shape or weight, with the disturbance not occurring exclusively during anorexia nervosa.", "scope_statement": "This model owns bulimia nervosa as the eating-disorder condition registered as vr.tr.bulimia-nervosa in XCT / XCT.STA, including diagnostic evidence, binge-compensation patterns, associated cognitions, condition-related harm and care decisions.", "in_scope": [ "Evidence for recurrent binge eating and compensatory behaviours", "Influence of weight and shape on self-evaluation", "Diagnostic framework, differential assessment and uncertainty", "Physical complications, psychological distress and functional impairment", "Treatment engagement, response, remission and recurrence" ], "out_of_scope": [ "Independent models of anorexia nervosa, binge-eating disorder and other specified feeding or eating disorders", "General nutrition, weight management and athletic training", "Standalone models of electrolyte disorders, dental disease and gastrointestinal disease", "Independent models of co-occurring psychiatric conditions", "Medication prescribing protocols and psychotherapy manuals" ], "distinguishing_features": [ "Assess loss of control alongside the amount and context of eating; eating more than intended alone does not establish a diagnostic binge episode.", "Establish recurrent compensatory behaviour intended to prevent weight gain; this distinguishes the pattern from binge-eating disorder, and compensation need not involve vomiting. [NIMH](https://www.nimh.nih.gov/health/publications/eating-disorders)", "Under DSM-5, assess undue weight or shape influence on self-evaluation and whether binge eating and compensation each average at least weekly for three months. [SAMHSA diagnostic comparison](https://www.ncbi.nlm.nih.gov/books/NBK519712/table/ch3.t16/)", "Determine whether the disturbance occurs exclusively during anorexia nervosa; such presentations are excluded from DSM-5 bulimia nervosa. [SAMHSA diagnostic comparison](https://www.ncbi.nlm.nih.gov/books/NBK519712/table/ch3.t16/)", "Distinguish intentional compensation from involuntary vomiting or regurgitation, and distinguish purging without qualifying binges from bulimia nervosa under the selected diagnostic framework." ], "characteristics": [ { "name": "Diagnostic assessment status", "kind": "state", "unit_or_values": "suspected | under assessment | clinician-confirmed | not supported | historical; framework and version recorded", "why_it_matters": "Separates reported symptoms from a documented clinical diagnosis." }, { "name": "Binge episode frequency", "kind": "measurement", "unit_or_values": "episodes/week over a dated observation interval; unknown permitted", "why_it_matters": "Supports threshold assessment and change tracking without conflating episodes with days." }, { "name": "Loss-of-control experience", "kind": "category", "unit_or_values": "reported | denied | uncertain | not assessed; linked to an eating episode", "why_it_matters": "Distinguishes binge experiences from overeating without loss of control." }, { "name": "Compensatory behaviour pattern", "kind": "category", "unit_or_values": "vomiting | medication misuse | fasting | excessive exercise | other | unknown; multiple values allowed", "why_it_matters": "Captures non-purging compensation and supports behaviour-specific risk assessment." }, { "name": "Compensatory behaviour frequency", "kind": "measurement", "unit_or_values": "events/week by behaviour with explicit counting rules and observation dates", "why_it_matters": "Supports assessment while avoiding double-counting linked behaviours." }, { "name": "Pattern duration", "kind": "measurement", "unit_or_values": "weeks or months; estimated onset and uncertainty", "why_it_matters": "Distinguishes persistent patterns from short-duration presentations." }, { "name": "Weight and shape influence", "kind": "category", "unit_or_values": "clinically significant | not clinically significant | uncertain | not assessed", "why_it_matters": "Records the role of weight and shape in self-evaluation." }, { "name": "Current medical risk assessment", "kind": "state", "unit_or_values": "not assessed | assessed without urgent concern | urgent concern | emergency concern; assessor and date", "why_it_matters": "Keeps immediate safety separate from diagnostic certainty and symptom frequency." }, { "name": "Functional impact", "kind": "category", "unit_or_values": "documented effects on meals, relationships, education, employment and daily activities", "why_it_matters": "Represents burden beyond episode counts." }, { "name": "Related conditions", "kind": "relation", "unit_or_values": "links to assessed complications, co-occurring conditions and differential diagnoses", "why_it_matters": "Coordinates care without duplicating neighbouring condition models." }, { "name": "Course status", "kind": "state", "unit_or_values": "active | improving | partial remission | full remission | recurrence | uncertain; criteria and interval required", "why_it_matters": "Makes recovery claims interpretable and traceable." } ], "affordances": [ "Organise reported symptoms into a clinician-reviewable assessment with explicit missing evidence.", "Compare evidence against a named diagnostic framework without making an autonomous diagnosis.", "Flag condition-related safety concerns for the appropriate clinical pathway.", "Summarise binge eating, compensation, distress and functioning across comparable intervals.", "Link the person's agreed treatment and recovery goals to follow-up observations.", "Identify discrepancies or gaps that require sensitive clarification rather than treating missing reports as absent symptoms." ] }, "sources": [], "structure": { "bundles": [ { "id": "diagnostic-identity-and-boundaries", "name": "Diagnostic identity and boundaries", "description": "Represent the evidence and exclusions that support this specific eating-disorder classification.", "rationale": "Binge eating, vomiting and body dissatisfaction alone do not establish bulimia nervosa.", "layers": [ { "id": "diagnostic-framework", "name": "Diagnostic framework", "description": "Anchor assessment to an identified classification and its edition.", "findings": [ { "id": "criteria-and-evidence", "name": "Criteria and evidence", "description": "Record each required criterion as supported, unsupported or unresolved, alongside its evidence and clinical assessment status.", "questions": [ { "text": "Which diagnostic framework and edition define the binge, compensation, duration and cognition requirements?", "kind": "definition", "id": "criteria-and-evidence-q01" }, { "text": "Who assessed each criterion, when, and using which interview, report or record?", "kind": "provenance", "id": "criteria-and-evidence-q02" } ] } ] }, { "id": "neighbouring-presentations", "name": "Neighbouring presentations", "description": "Test alternative explanations and subthreshold presentations.", "findings": [ { "id": "differential-resolution", "name": "Differential resolution", "description": "Document why anorexia nervosa, binge-eating disorder, purging without qualifying binges, or non-compensatory vomiting better explains or fails to explain the presentation.", "questions": [ { "text": "Does the binge-compensation pattern occur exclusively during a presentation meeting anorexia nervosa criteria?", "kind": "boundary", "id": "differential-resolution-q01" }, { "text": "If bulimia nervosa criteria are not established, which alternative or unresolved presentation should remain linked?", "kind": "boundary", "id": "differential-resolution-q02" } ] } ] } ] }, { "id": "binge-and-compensation-pattern", "name": "Binge and compensation pattern", "description": "Represent the eating episodes and compensatory behaviours that constitute the presenting pattern.", "rationale": "Their meaning, recurrence and temporal relationship determine how the presentation is understood.", "layers": [ { "id": "binge-episode-characterisation", "name": "Binge episode characterisation", "description": "Separate perceived excess, contextual amount and experienced loss of control.", "findings": [ { "id": "qualifying-binge-evidence", "name": "Qualifying binge evidence", "description": "Record episode boundaries, contextual assessment of amount and the person's account of control without requiring calorie-level surveillance.", "questions": [ { "text": "What evidence establishes loss of control and the applicable framework's requirement concerning amount eaten?", "kind": "definition", "id": "qualifying-binge-evidence-q01" }, { "text": "How many qualifying and uncertain episodes occurred within the documented interval?", "kind": "measurement", "id": "qualifying-binge-evidence-q02" } ] } ] }, { "id": "compensation-and-recurrence", "name": "Compensation and recurrence", "description": "Capture the intention, type and recurrence of compensation.", "findings": [ { "id": "compensatory-pattern-evidence", "name": "Compensatory pattern evidence", "description": "Record behaviours intended to offset eating or prevent weight gain, their timing and the persistence of the pattern, without operational instructions.", "questions": [ { "text": "Which behaviours have a compensatory purpose, and how is that purpose established?", "kind": "boundary", "id": "compensatory-pattern-evidence-q01" }, { "text": "What are their frequencies and duration, and how are multiple behaviours around one episode counted?", "kind": "measurement", "id": "compensatory-pattern-evidence-q02" } ] } ] } ] }, { "id": "self-evaluation-and-lived-impact", "name": "Self-evaluation and lived impact", "description": "Represent the meaning of weight and shape, individual maintaining patterns and everyday consequences.", "rationale": "Behaviour counts alone cannot represent the cognitive features or burden of bulimia nervosa.", "layers": [ { "id": "weight-shape-and-context", "name": "Weight, shape and context", "description": "Assess self-evaluation and person-specific circumstances around symptoms.", "findings": [ { "id": "cognitive-and-contextual-formulation", "name": "Cognitive and contextual formulation", "description": "Record weight and shape concerns and reported links among restriction, emotions, binge eating and compensation as individual observations or hypotheses.", "questions": [ { "text": "How strongly does weight or shape determine the person's sense of worth?", "kind": "measurement", "id": "cognitive-and-contextual-formulation-q01" }, { "text": "Which proposed maintaining links come from the person's account, clinician formulation or repeated observations?", "kind": "provenance", "id": "cognitive-and-contextual-formulation-q02" } ] } ] }, { "id": "distress-and-participation", "name": "Distress and participation", "description": "Capture how symptoms affect daily life and disclosure.", "findings": [ { "id": "burden-and-disclosure-barriers", "name": "Burden and disclosure barriers", "description": "Record distress, disruption around eating, social withdrawal and barriers to discussing symptoms, without assuming concealment.", "questions": [ { "text": "Which activities or relationships are affected, and how has that changed?", "kind": "measurement", "id": "burden-and-disclosure-barriers-q01" }, { "text": "What communication or assessment adjustments would make disclosure and participation easier?", "kind": "action", "id": "burden-and-disclosure-barriers-q02" } ] } ] } ] }, { "id": "complications-and-immediate-safety", "name": "Complications and immediate safety", "description": "Connect the presenting pattern to current physical and psychological safety assessments.", "rationale": "Diagnostic status and episode frequency do not by themselves determine immediate care needs.", "layers": [ { "id": "physical-complications", "name": "Physical complications", "description": "Link symptoms and clinical observations to possible consequences of binge eating and compensation.", "findings": [ { "id": "physical-harm-assessment", "name": "Physical harm assessment", "description": "Capture assessed dehydration, electrolyte disturbance, dental injury and gastrointestinal problems, including unresolved concerns. [NIMH](https://www.nimh.nih.gov/health/publications/eating-disorders)", "questions": [ { "text": "Which symptoms, examination findings or investigations indicate current complications, and when were they assessed?", "kind": "measurement", "id": "physical-harm-assessment-q01" }, { "text": "Do the findings require urgent medical evaluation under the applicable clinical pathway?", "kind": "action", "id": "physical-harm-assessment-q02" } ] } ] }, { "id": "psychological-safety-and-coordination", "name": "Psychological safety and coordination", "description": "Connect current safety concerns and co-occurring conditions to responsible care.", "findings": [ { "id": "safety-assessment-and-handoff", "name": "Safety assessment and handoff", "description": "Record assessment of self-harm or suicide risk and relevant co-occurring conditions, with a named clinician or service responsible for follow-up. [NICE assessment guidance](https://www.nice.org.uk/guidance/ng69/chapter/Recommendations)", "questions": [ { "text": "What current safety concerns have been assessed, and which remain unassessed?", "kind": "measurement", "id": "safety-assessment-and-handoff-q01" }, { "text": "Who owns the next safety action, and has the referral or handoff been completed?", "kind": "action", "id": "safety-assessment-and-handoff-q02" } ] } ] } ] }, { "id": "care-response-and-recovery", "name": "Care, response and recovery", "description": "Represent agreed care, its accessibility and changes across the condition's course.", "rationale": "A usable model must support follow-up and distinguish symptom reduction from broader recovery.", "layers": [ { "id": "treatment-fit-and-engagement", "name": "Treatment fit and engagement", "description": "Link care choices to age, assessment, preferences and access.", "findings": [ { "id": "agreed-care-pathway", "name": "Agreed care pathway", "description": "Record the clinician-agreed intervention and review plan; NICE describes adult guided self-help and CBT-ED pathways and family therapy for children and young people. [NICE bulimia nervosa recommendations](https://www.nice.org.uk/guidance/ng69/chapter/Recommendations)", "questions": [ { "text": "Which intervention was agreed, on what clinical basis, and with what participation preferences?", "kind": "action", "id": "agreed-care-pathway-q01" }, { "text": "Which access barriers, adverse experiences or competing needs affect engagement and require adjustment?", "kind": "action", "id": "agreed-care-pathway-q02" } ] } ] }, { "id": "response-remission-and-recurrence", "name": "Response, remission and recurrence", "description": "Compare symptoms, distress and functioning over defined intervals.", "findings": [ { "id": "recovery-evidence-and-review", "name": "Recovery evidence and review", "description": "Track binge eating, compensation, self-evaluation, safety and functioning separately; require explicit criteria and observation periods for remission or recurrence.", "questions": [ { "text": "Which domains have improved or worsened relative to a comparable baseline, and what evidence is missing?", "kind": "measurement", "id": "recovery-evidence-and-review-q01" }, { "text": "What definition supports the recorded course status, and which changes should trigger clinical review?", "kind": "action", "id": "recovery-evidence-and-review-q02" } ] } ] } ] }, { "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 a recall-based account; no sources were consulted.", "Diagnostic wording, binge-eating definitions and thresholds should be checked against the classification being used; DSM and ICD criteria are not identical.", "Purging and non-purging were historical DSM-IV subtypes and are not current DSM-5-TR subtypes." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of bulimia nervosa 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": [ "DSM-5-TR severity specifiers: mild, moderate, severe and extreme", "Partial remission", "Full remission" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of bulimia nervosa 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": "ICD-10", "value_or_pattern": "F50.2", "note": "WHO code for bulimia nervosa; national clinical modifications may add detail." }, { "scheme": "ICD-11", "value_or_pattern": "6B81", "note": "WHO code for bulimia nervosa." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of bulimia nervosa 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 ICD-11: diagnostic classification.", "American Psychiatric Association DSM-5-TR: diagnostic criteria and severity and remission specifiers.", "National Institute for Health and Care Excellence guideline NG69, Eating disorders: recognition and treatment." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of bulimia nervosa 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": [ "Clinical diagnosis and distinction from other eating disorders.", "Planning psychological treatment, nutritional support and medical monitoring.", "Clinical coding and health-service reporting.", "Defining research cohorts and assessing treatment outcomes." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of bulimia nervosa 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": "Frequency and duration of binge eating and inappropriate compensatory behaviours", "typical_range": "DSM-5-TR diagnostic threshold: both occur on average at least once weekly for 3 months; this is a criterion, not a population typical range.", "unit": "episodes per week; months" }, { "quantity": "Frequency of inappropriate compensatory behaviours used for DSM-5-TR severity specification", "typical_range": "Mild: 1-3; moderate: 4-7; severe: 8-13; extreme: 14 or more. Severity may be increased to reflect other symptoms and functional disability.", "unit": "episodes per week" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of bulimia nervosa 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": [ "Electrolyte disturbances, particularly hypokalaemia, can cause dangerous cardiac arrhythmias.", "Repeated vomiting can cause dental erosion and injury to the oesophagus.", "Dehydration and purging-related complications can impair kidney function.", "Depression, self-harm and suicide risk may accompany the disorder.", "Diagnosis may be delayed by secrecy, stigma or the mistaken assumption that an eating disorder requires low body weight." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of bulimia nervosa 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": [ "Health systems differ in their use of WHO ICD classifications, national ICD modifications and DSM criteria.", "Cultural context can affect symptom expression, disclosure and recognition; access to specialist treatment also varies." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of bulimia nervosa 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": "Binge-eating disorder", "difference": "Recurrent binge eating occurs without the regular inappropriate compensatory behaviours characteristic of bulimia nervosa." }, { "name": "Anorexia nervosa, binge-eating/purging type", "difference": "When binge eating or purging occurs exclusively during anorexia nervosa, including its significantly low body-weight criterion, the diagnosis is anorexia nervosa rather than bulimia nervosa." }, { "name": "Purging disorder", "difference": "Recurrent purging to influence weight or shape occurs without binge eating; DSM-5-TR describes this under other specified feeding or eating disorder." }, { "name": "Bulimia nervosa of low frequency and/or limited duration", "difference": "Otherwise characteristic symptoms fall below the DSM-5-TR frequency or duration threshold and are described under other specified feeding or eating disorder." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of bulimia nervosa this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which current DSM and ICD editions should the model support, and how should differences in binge definitions and duration requirements be represented?", "Which assessment instruments are validated across the intended ages, languages and cultural contexts?", "How should uncertain episode boundaries, subjective binge experiences and incomplete recall be represented without false precision?", "Which jurisdiction-specific clinical pathways should govern medical escalation and psychological safety handoffs?", "Which remission and recurrence definitions best support comparable records while preserving patient-defined recovery goals?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 19, "questions": 29 } }, "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 bulimia nervosa, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to recognise evidence consistent with bulimia nervosa, represent its course and risks, and support clinician-led assessment, care and recovery monitoring.", "characteristics": { "substance": "information", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "read and interpreted" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: atypical bulimia nervosa, exercise bulimia, bulimia nervosa, susceptibility to, 2.", "3 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 66 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 bulimia nervosa, 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": [ { "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": [ "atypical bulimia nervosa", "exercise bulimia", "bulimia nervosa, susceptibility to, 2" ] } ], "standing": "Described in 66 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 3 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 bulimia nervosa from another, and a bulimia nervosa 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 bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa 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 bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa 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 bulimia nervosa between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a bulimia nervosa 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 bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa 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 bulimia nervosa contains and in what form it is held.", "questions": [ { "id": "content-and-format-q01", "text": "What identifies and describes the content of a bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa and the period it survives.", "questions": [ { "id": "access-rules-q01", "text": "What identifies and describes access to a bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa 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 bulimia nervosa 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 bulimia nervosa 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 bulimia nervosa 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 bulimia nervosa 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 bulimia nervosa is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a bulimia nervosa, 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 bulimia nervosa, 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 bulimia nervosa 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 } } } }