{ "model": { "rank": 3776, "code": "thing-q191521", "model_id": "vr.tr.sildenafil", "name": "sildenafil", "purpose": "Enable an agent to identify sildenafil, assess the identity and condition of a recorded material or product, and determine which evidence and constraints govern its handling or intended use.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.OBJ", "industry": "", "version": "", "url": "/models/thing/q191521/", "tier": 2, "score": 82, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 82, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.sildenafil", "source": { "dataset": "wikidata", "item": "Q191521", "url": "https://www.wikidata.org/wiki/Q191521", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T15:07:28Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 24.4, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07c67-e5e0-75d0-b136-721ae04f490e\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: sildenafil\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 801 things:\n# Batch 004: 1001 regis", "usd": 0, "recall": true }, "codex": { "seconds": 69.7, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07c67-e5ee-7060-b40a-5422802ebe0f\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: sildenafil\nRegistry id: vr.tr.sildenafil\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCo" } } }, "metaModel": { "id": "THING-Q191521", "registryId": "vr.tr.sildenafil", "name": "sildenafil", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q191521/", "model": { "registry_id": "vr.tr.sildenafil", "name": "sildenafil", "purpose": "Enable an agent to identify sildenafil, assess the identity and condition of a recorded material or product, and determine which evidence and constraints govern its handling or intended use.", "definition": "Sildenafil is a synthetic small-molecule inhibitor of phosphodiesterase type 5 (PDE5) that enhances cyclic guanosine monophosphate-mediated smooth-muscle relaxation and is used to treat erectile dysfunction and pulmonary arterial hypertension.", "scope_statement": "This model owns sildenafil as a chemical substance and active pharmaceutical ingredient, including its material forms, quality attributes, pharmacological relationships, and links to products and use constraints; it distinguishes substance identity from a particular medicine, batch, or patient treatment.", "in_scope": [ "Sildenafil molecular identity and relationships to salts, particularly sildenafil citrate", "Material composition, physical form, impurities, and evidence of identity", "Pharmacological target, activity, and exposure relationships", "Links to formulations, routes, strengths, and indication-specific products", "Condition, traceability, handling requirements, and use restrictions" ], "out_of_scope": [ "Independent models of sildenafil citrate or other salts without a registry task requiring that split", "Complete product specifications for individual brands, formulations, or packages", "Patient diagnosis, prescribing decisions, and individualized dosing", "General models of erectile dysfunction or pulmonary arterial hypertension", "Other active substances, including tadalafil and vardenafil", "Manufacturing equipment and organizational quality-management systems" ], "distinguishing_features": [ "Chemical identity evidence must resolve to sildenafil; a shared therapeutic use or PDE5-inhibitor classification is insufficient.", "A record must distinguish sildenafil as the active moiety from sildenafil citrate as the supplied material form.", "A stated mass or strength must identify whether it denotes sildenafil equivalent, salt mass, or total formulated material.", "A product name must resolve to a documented composition; branding or packaging alone does not establish sildenafil identity.", "Parent sildenafil must be distinguished from its metabolites, impurities, and degradation products." ], "characteristics": [ { "name": "Chemical identity", "kind": "category", "unit_or_values": "Verified molecular structure and identifiers, with the referenced chemical form stated", "why_it_matters": "Prevents confusion between sildenafil, related inhibitors, and chemically distinct material forms." }, { "name": "Supplied chemical form", "kind": "category", "unit_or_values": "Free base; citrate salt; other documented form; unresolved", "why_it_matters": "Determines how composition, analytical identity, and quantity should be interpreted." }, { "name": "Sildenafil content", "kind": "measurement", "unit_or_values": "mg per dosage unit, mg/mL, or mass fraction; state active-moiety or salt basis", "why_it_matters": "Makes quantities comparable without silently substituting salt mass for active content." }, { "name": "Assay and impurity profile", "kind": "measurement", "unit_or_values": "Assay percentage and individual impurity concentrations, with method and reporting basis", "why_it_matters": "Supports assessment against the specification applicable to the material or product." }, { "name": "Solid-state form", "kind": "category", "unit_or_values": "Documented crystalline, amorphous, solvation, or hydration state; unresolved", "why_it_matters": "Allows relevant differences in material behavior to be investigated." }, { "name": "Pharmacological target relationship", "kind": "relation", "unit_or_values": "Target, activity type, assay evidence, and experimental conditions", "why_it_matters": "Separates an evidenced mechanism from assumptions based on therapeutic classification." }, { "name": "Formulation and route relationship", "kind": "relation", "unit_or_values": "Linked product, dosage form, route, release characteristics, and jurisdiction", "why_it_matters": "Prevents properties of one sildenafil product from being applied to every presentation." }, { "name": "Interaction or contraindication relationship", "kind": "relation", "unit_or_values": "Interacting substance or condition, restriction type, applicable label, and evidence date", "why_it_matters": "Supports retrieval of applicable restrictions before a use-related action." }, { "name": "Material disposition", "kind": "state", "unit_or_values": "Unassessed; quarantined; released for specified use; rejected; expired or beyond retest date", "why_it_matters": "Distinguishes possession of material from evidence that it is suitable for a particular purpose." } ], "affordances": [ "Resolve a chemical or product record to sildenafil while retaining the supplied salt and formulation distinctions.", "Normalize reported sildenafil quantities when the chemical form, reporting basis, and conversion evidence are available.", "Compare analytical results with the applicable sildenafil material or product specification.", "Retrieve product-specific evidence for pharmacology, indications, interactions, and restrictions.", "Flag unresolved identity, quality, storage, or provenance evidence for review or quarantine.", "Trace a use or handling constraint to its source, jurisdiction, product, and revision." ] }, "sources": [], "structure": { "bundles": [ { "id": "sildenafil-identity-and-material-boundaries", "name": "Sildenafil identity and material boundaries", "description": "Establishes what counts as sildenafil and how its active-moiety identity relates to supplied materials.", "rationale": "Sildenafil, sildenafil citrate, and sildenafil-containing medicines require connected but distinct records.", "layers": [ { "id": "molecular-identity", "name": "Molecular identity", "description": "Defines the chemical entity independently of branding or therapeutic use.", "findings": [ { "id": "structure-based-identification", "name": "Structure-based identification", "description": "Record the evidence needed to resolve a candidate substance to sildenafil.", "questions": [ { "text": "Which authoritative structure and identifiers define sildenafil, and which instead identify sildenafil citrate?", "kind": "definition", "id": "structure-based-identification-q01" }, { "text": "What analytical evidence distinguishes the recorded material from related PDE5 inhibitors or an incorrectly labeled sample?", "kind": "measurement", "id": "structure-based-identification-q02" } ] } ] }, { "id": "active-moiety-and-supplied-form", "name": "Active moiety and supplied form", "description": "Separates sildenafil identity from salt composition and formulated presentation.", "findings": [ { "id": "salt-and-quantity-basis", "name": "Salt and quantity basis", "description": "Make the chemical form and meaning of every reported quantity explicit.", "questions": [ { "text": "Does this record describe sildenafil free base, sildenafil citrate, or a formulated product containing sildenafil?", "kind": "boundary", "id": "salt-and-quantity-basis-q01" }, { "text": "Is the reported amount expressed as sildenafil equivalent or salt mass, and what verified composition supports any conversion?", "kind": "measurement", "id": "salt-and-quantity-basis-q02" } ] } ] } ] }, { "id": "sildenafil-quality-and-stability", "name": "Sildenafil quality and stability", "description": "Connects material identity, analytical quality, and condition to suitability for a specified purpose.", "rationale": "A sildenafil identity claim alone does not establish pharmaceutical quality or continued suitability after storage.", "layers": [ { "id": "analytical-quality", "name": "Analytical quality", "description": "Captures sildenafil content and unwanted constituents using applicable methods.", "findings": [ { "id": "assay-and-related-substances", "name": "Assay and related substances", "description": "Record assay and impurity evidence without assuming one specification covers all material forms.", "questions": [ { "text": "Which specification and analytical methods apply to this sildenafil material or finished product?", "kind": "provenance", "id": "assay-and-related-substances-q01" }, { "text": "What are the measured sildenafil assay and related-substance levels, including reporting basis and quantification limits?", "kind": "measurement", "id": "assay-and-related-substances-q02" } ] } ] }, { "id": "physical-form-and-storage", "name": "Physical form and storage", "description": "Relates documented material form and exposure history to stability evidence.", "findings": [ { "id": "condition-dependent-suitability", "name": "Condition-dependent suitability", "description": "Assess whether the current material remains within supported storage and stability conditions.", "questions": [ { "text": "Which physical-form, moisture, dissolution, or degradation measurements are relevant to this sildenafil presentation?", "kind": "measurement", "id": "condition-dependent-suitability-q01" }, { "text": "Following a storage excursion or an exceeded expiry or retest date, what evidence is required before release, retesting, or rejection?", "kind": "action", "id": "condition-dependent-suitability-q02" } ] } ] } ] }, { "id": "sildenafil-pharmacology-and-exposure", "name": "Sildenafil pharmacology and exposure", "description": "Organizes evidence connecting sildenafil to biological targets and exposure-dependent effects.", "rationale": "An agent must distinguish substance-level pharmacology from formulation-dependent exposure and individual clinical response.", "layers": [ { "id": "target-and-functional-effect", "name": "Target and functional effect", "description": "Records target activity and the biological context needed to interpret it.", "findings": [ { "id": "pde5-and-selectivity-evidence", "name": "PDE5 and selectivity evidence", "description": "Specify the evidence supporting sildenafil's target relationships and their limits.", "questions": [ { "text": "What evidence establishes sildenafil's inhibition of PDE5 and the connection to cGMP signaling?", "kind": "provenance", "id": "pde5-and-selectivity-evidence-q01" }, { "text": "Which measurements establish activity at other phosphodiesterases, and under what assay conditions?", "kind": "measurement", "id": "pde5-and-selectivity-evidence-q02" } ] } ] }, { "id": "exposure-and-metabolism", "name": "Exposure and metabolism", "description": "Separates administered amount, systemic exposure, and parent or metabolite activity.", "findings": [ { "id": "exposure-context", "name": "Exposure context", "description": "Attach pharmacokinetic observations to their formulation, route, and studied population.", "questions": [ { "text": "Which formulation, route, food conditions, and population accompany reported sildenafil exposure measurements?", "kind": "measurement", "id": "exposure-context-q01" }, { "text": "Which metabolic pathways and active metabolites are established, and which observations belong to metabolites rather than parent sildenafil?", "kind": "boundary", "id": "exposure-context-q02" } ] } ] } ] }, { "id": "sildenafil-products-and-use-constraints", "name": "Sildenafil products and use constraints", "description": "Links sildenafil to particular medicines and the evidence governing their permitted or restricted use.", "rationale": "Indications, routes, instructions, and restrictions must be resolved at the applicable product and jurisdiction.", "layers": [ { "id": "product-and-indication-context", "name": "Product and indication context", "description": "Associates the substance with documented products without collapsing their distinct uses.", "findings": [ { "id": "indication-specific-product-linkage", "name": "Indication-specific product linkage", "description": "Record which product and authorization support a stated sildenafil use.", "questions": [ { "text": "Which current product authorization supports the stated indication, such as erectile dysfunction or pulmonary arterial hypertension, in the relevant jurisdiction?", "kind": "provenance", "id": "indication-specific-product-linkage-q01" }, { "text": "Which route, strength, and administration instructions belong to that product and must not be generalized across sildenafil presentations?", "kind": "boundary", "id": "indication-specific-product-linkage-q02" } ] } ] }, { "id": "interaction-and-action-gates", "name": "Interaction and action gates", "description": "Records evidence that constrains a proposed use or requires qualified review.", "findings": [ { "id": "restriction-evidence", "name": "Restriction evidence", "description": "Represent contraindications, interactions, and warnings with their exact scope and source.", "questions": [ { "text": "What do the applicable labels state about nitrates, riociguat, blood-pressure-lowering medicines, and drugs affecting sildenafil metabolism?", "kind": "provenance", "id": "restriction-evidence-q01" }, { "text": "Which documented patient factors, concurrent medicines, or reported adverse events require the proposed action to stop or be referred for clinical review?", "kind": "action", "id": "restriction-evidence-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 entry covers the chemical active substance, not a particular brand, formulation or individual dose.", "Regulatory status, pharmacopoeial editions and product-specific indications require current verification.", "Pharmacokinetic values vary with patient characteristics and interacting medicines." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of sildenafil 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": [ "Sildenafil free base", "Sildenafil citrate salt" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of sildenafil 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": "International Nonproprietary Name (INN)", "value_or_pattern": "sildenafil", "note": "Names the active substance; sildenafil citrate names its citrate salt." }, { "scheme": "CAS Registry Number", "value_or_pattern": "139755-83-2", "note": "Sildenafil free base." }, { "scheme": "CAS Registry Number", "value_or_pattern": "171599-83-0", "note": "Sildenafil citrate." }, { "scheme": "Molecular formula", "value_or_pattern": "C22H30N6O4S", "note": "Free-base composition; a formula alone is not a unique structural identifier." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of sildenafil 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": [ "United States Pharmacopeia-National Formulary (USP-NF), issued by the United States Pharmacopeial Convention, includes a sildenafil citrate monograph.", "The US Food and Drug Administration regulates sildenafil medicines through product-specific approvals and prescribing information.", "The World Anti-Doping Agency prohibits PDE5 inhibitors, including sildenafil, within its category of manipulation of blood and blood components when used to manipulate blood or blood components." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of sildenafil 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": [ "Treatment of erectile dysfunction.", "Treatment of pulmonary arterial hypertension.", "Research on PDE5 inhibition and nitric oxide-cGMP signalling." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of sildenafil 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": "Molar mass of sildenafil free base", "typical_range": "474.58", "unit": "g/mol" }, { "quantity": "Molar mass of sildenafil citrate", "typical_range": "666.70", "unit": "g/mol" }, { "quantity": "Terminal elimination half-life", "typical_range": "Approximately 3-5", "unit": "hours" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of sildenafil 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": [ "Concurrent use with organic nitrates or nitric oxide donors can cause dangerous hypotension; concomitant use with riociguat is also contraindicated.", "Common adverse effects include headache, flushing, dyspepsia and nasal congestion.", "Visual disturbances can occur; sudden vision or hearing loss has been reported.", "Prolonged erection and priapism can occur.", "Strong CYP3A inhibitors can increase sildenafil exposure and adverse effects." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of sildenafil 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": [ "Prescription and pharmacist-supplied access differ by jurisdiction and product.", "Approved indications, formulations and age groups differ between national authorisations." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of sildenafil 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": "Sildenafil citrate", "difference": "The citrate salt contains sildenafil and a citrate component; sildenafil alone names the active molecular entity." }, { "name": "Tadalafil", "difference": "A chemically distinct PDE5 inhibitor with a substantially longer elimination half-life." }, { "name": "Vardenafil", "difference": "A chemically distinct PDE5 inhibitor, despite overlapping therapeutic uses." }, { "name": "Viagra", "difference": "A brand of sildenafil medicine rather than the chemical substance itself." }, { "name": "Revatio", "difference": "A brand of sildenafil medicine associated with pulmonary arterial hypertension rather than a separate active substance." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of sildenafil this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does an existing Vercy world model already own sildenafil, requiring this registry entry to link to it?", "Which authoritative chemical records and pharmacopoeial specifications should anchor sildenafil identity, salt distinctions, and quality measurements?", "Which jurisdictions and sildenafil products should provide the initial verified indication, route, interaction, and restriction evidence?", "Which solid-state forms and stability attributes materially affect the sildenafil materials represented in the registry?", "How should product-level authenticity and batch-release evidence be linked while keeping this model focused on the registered substance?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 17, "questions": 25 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "device, machine or tool", "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 sildenafil, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to identify sildenafil, assess the identity and condition of a recorded material or product, and determine which evidence and constraints govern its handling or intended use.", "characteristics": { "substance": "material", "origin": "manufactured", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Described in 82 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 sildenafil, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "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": [ "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things." ], "relatedModels": [], "standing": "Described in 82 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 sildenafil from another, and a sildenafil 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 sildenafil, 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 sildenafil, 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 sildenafil 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 sildenafil, 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 sildenafil, 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 sildenafil 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 sildenafil 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 sildenafil, 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 sildenafil, 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 sildenafil 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 sildenafil from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a sildenafil, 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 sildenafil, 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 sildenafil is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a sildenafil is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a sildenafil, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a sildenafil, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a sildenafil is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a sildenafil is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a sildenafil, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a sildenafil, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a sildenafil is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a sildenafil is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a sildenafil, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a sildenafil, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a sildenafil is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a sildenafil is, how it got there and where it may go (varies).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a sildenafil is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a sildenafil, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a sildenafil, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a sildenafil is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a sildenafil is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a sildenafil, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a sildenafil, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a sildenafil 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 sildenafil 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 sildenafil between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a sildenafil, 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 sildenafil, 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 sildenafil 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 sildenafil, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a sildenafil 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 sildenafil, 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 sildenafil, 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 sildenafil is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "function-and-principle", "name": "Function and operating principle", "description": "What sildenafil is for and how it achieves it.", "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.", "layers": [ { "id": "intended-function", "name": "Intended function", "description": "The job it does, and the jobs it is used for anyway.", "findings": [ { "id": "function-record", "name": "Function, principle and variants", "description": "What it does, how, and which variants do it differently.", "questions": [ { "id": "function-record-q01", "text": "What function does sildenafil perform, on what operating principle, and which variants differ in that principle?", "kind": "definition" }, { "id": "function-record-q02", "text": "What use falls outside the intended function but happens in practice?", "kind": "boundary" } ] } ] }, { "id": "capacity-and-rating", "name": "Capacity and rating", "description": "The numbers that say what it can do and where it stops.", "findings": [ { "id": "ratings", "name": "Ratings and their conditions", "description": "Rated capacity, power, throughput and the conditions each assumes.", "questions": [ { "id": "ratings-q01", "text": "What ratings characterise sildenafil, in what units, and under what stated conditions?", "kind": "measurement" }, { "id": "ratings-q02", "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?", "kind": "action" } ] } ] } ] }, { "id": "operation-and-state", "name": "Operation, controls and state", "description": "How sildenafil is operated and what state it is in right now.", "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.", "layers": [ { "id": "controls-and-modes", "name": "Controls and modes", "description": "What can be set, what that changes, and what is interlocked.", "findings": [ { "id": "control-surface", "name": "Control surface and interlocks", "description": "The settings available and the conditions that block them.", "questions": [ { "id": "control-surface-q01", "text": "What controls and modes does sildenafil have, and what does each change?", "kind": "definition" }, { "id": "control-surface-q02", "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?", "kind": "action" } ] } ] }, { "id": "condition-and-maintenance", "name": "Condition and maintenance", "description": "Wear, service intervals, consumables and the line between working and broken.", "findings": [ { "id": "service-record", "name": "Condition, service and consumables", "description": "What is consumed, what is serviced, and how condition is judged.", "questions": [ { "id": "service-record-q01", "text": "What consumables and service does sildenafil need, at what interval, and on whose authority?", "kind": "measurement" }, { "id": "service-record-q02", "text": "What evidence separates a unit that is working from one that is out of service?", "kind": "boundary" } ] } ] } ] }, { "id": "kind-model-unit", "name": "Kind, model and unit", "description": "Whether a claim about sildenafil is about the kind, a product line, or one physical unit.", "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.", "layers": [ { "id": "level-of-reference", "name": "Level of reference", "description": "The three levels and what belongs at each.", "findings": [ { "id": "level-rules", "name": "What belongs to kind, model and unit", "description": "Which properties are shared by all of them and which are not.", "questions": [ { "id": "level-rules-q01", "text": "Which facts about sildenafil hold for every one of them, which for a model, and which only for one unit?", "kind": "boundary" }, { "id": "level-rules-q02", "text": "What identifies an individual unit, and what should an agent do when it has only the kind?", "kind": "action" } ] } ] }, { "id": "standards-and-conformity", "name": "Standards and conformity", "description": "The standards a working example must meet and who attests it.", "findings": [ { "id": "conformity", "name": "Standards, marks and attestation", "description": "Which standard applies, who certifies, and what the mark means.", "questions": [ { "id": "conformity-q01", "text": "Which standards govern sildenafil, issued by whom, and what does conformity actually assert?", "kind": "provenance" }, { "id": "conformity-q02", "text": "What may an agent conclude from a certification mark, and what may it not?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a sildenafil 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 sildenafil and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a sildenafil, 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 sildenafil, 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 sildenafil 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 sildenafil is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a sildenafil, 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 sildenafil, 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 sildenafil is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 8, "layers": 17, "findings": 19, "questions": 51 } } } }