{ "model": { "rank": 6463, "code": "thing-q271943", "model_id": "vr.tr.isoprene", "name": "isoprene", "purpose": "Enable an AI agent to recognise isoprene, assess the condition of an identified quantity or occurrence, and determine which handling, measurement or transformation actions its evidence supports.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q271943/", "tier": 2, "score": 60, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 60, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q271943", "url": "https://www.wikidata.org/wiki/Q271943", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T14:41:44Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.0019295, "turns": 1, "seconds": 13.4, "error": null }, "codex": { "seconds": 89.3, "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: 01a07c50-0ba4-77f2-8231-8add51061610\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: isoprene\nRegistry id: vr.tr.isoprene\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy" } } }, "metaModel": { "id": "THING-Q271943", "registryId": "vr.tr.isoprene", "name": "isoprene", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q271943/", "model": { "registry_id": "vr.tr.isoprene", "name": "isoprene", "purpose": "Enable an AI agent to recognise isoprene, assess the condition of an identified quantity or occurrence, and determine which handling, measurement or transformation actions its evidence supports.", "definition": "Isoprene (2-methylbuta-1,3-diene) is a C5 conjugated diene that is both the biogenic volatile organic compound most abundantly emitted by terrestrial vegetation and the industrial monomer from which natural rubber, synthetic polyisoprene, and many terpenoids are built.", "scope_statement": "This PHY / PHY.MAT model owns vr.tr.isoprene as the molecular substance 2-methyl-1,3-butadiene, including its identity, presence in mixtures, material condition and action constraints; it links to models of containing systems and transformation products.", "in_scope": [ "Molecular identity and evidence distinguishing isoprene from neighbouring substances", "Isoprene content, impurities and stabilisation in samples, batches and streams", "Phase, quantity and concentration under recorded conditions", "Evidence of oxidation, peroxide formation or unintended polymerisation", "Suitability for a specified measurement, storage, transfer or reaction", "Isoprene occurrences and source attribution in industrial, environmental and biological samples" ], "out_of_scope": [ "Polyisoprene, natural rubber and copolymer properties beyond their relation to consumed or residual isoprene", "Terpenes, isoprenoids and abstract isoprene building units", "Isopentenyl diphosphate and dimethylallyl diphosphate as distinct biochemical substances", "Plant physiology, human metabolism and diagnostic interpretation of breath measurements", "Reactor, tank, ventilation and transport-system design", "Atmospheric reaction networks, ecosystem emissions inventories and regional air-quality predictions" ], "distinguishing_features": [ "Require evidence for CH2=C(CH3)-CH=CH2, corresponding to 2-methyl-1,3-butadiene and CAS 78-79-5; a name alone is insufficient sample identification. [ICSC 0904](https://www.inchem.org/documents/icsc/icsc/eics0904.htm)", "Resolve molecular connectivity: the formula C5H8 alone cannot distinguish isoprene from pentadienes or cyclopentene.", "Check elemental composition and substitution to distinguish the methyl-substituted diene from unsubstituted 1,3-butadiene and chlorine-containing chloroprene.", "Establish the presence of free monomer; a rubber repeat unit or an isoprenoid structural motif does not establish free isoprene.", "Use boiling behaviour only as corroboration: approximately 34.07 °C at 760 mm Hg is a reference for isoprene, not a unique identification test. [NTP profile](https://ntp.niehs.nih.gov/sites/default/files/ntp/roc/content/profiles/isoprene.pdf)" ], "characteristics": [ { "name": "Identity confidence", "kind": "state", "unit_or_values": "confirmed | provisional | conflicting | unidentified", "why_it_matters": "Prevents a supplier label or unresolved analytical signal from being treated as confirmed isoprene." }, { "name": "Occurrence form", "kind": "category", "unit_or_values": "bulk monomer | mixture constituent | trace analyte | residual monomer", "why_it_matters": "Determines which condition measurements and action constraints apply." }, { "name": "Isoprene content", "kind": "measurement", "unit_or_values": "mass fraction, mole fraction or concentration with matrix, basis, uncertainty and timestamp", "why_it_matters": "Separates chemical identity from batch purity and environmental abundance." }, { "name": "Quantity represented", "kind": "measurement", "unit_or_values": "kg or mol; volume only with temperature and density basis", "why_it_matters": "Supports inventory and transformation accounting without confusing sample size with total stock." }, { "name": "Phase and conditions", "kind": "state", "unit_or_values": "liquid | vapour | dissolved | multiphase | unknown, with temperature in °C and absolute pressure in kPa", "why_it_matters": "Makes phase and volatility assessments specific to the observed material." }, { "name": "Inhibitor identity and content", "kind": "measurement", "unit_or_values": "named inhibitor and mg/kg, with method, date and detection limit", "why_it_matters": "Supports evaluation against the actual formulation's stabilisation requirements." }, { "name": "Peroxide test result", "kind": "measurement", "unit_or_values": "method-defined concentration and reporting basis; not tested distinguished from below detection", "why_it_matters": "Provides evidence needed to evaluate peroxide-related restrictions." }, { "name": "Unintended conversion", "kind": "state", "unit_or_values": "not detected | suspected | confirmed | unassessed, with monomer-loss or residue evidence", "why_it_matters": "Separates usable monomer from material undergoing unplanned change." }, { "name": "Impurity profile", "kind": "measurement", "unit_or_values": "identified impurities in mg/kg or mass fraction, with unresolved fraction and analytical method", "why_it_matters": "Allows suitability to be judged against a particular downstream use." }, { "name": "Source attribution", "kind": "relation", "unit_or_values": "linked production batch, process stream, organism, sampling location or unresolved source hypothesis", "why_it_matters": "Connects occurrence to evidence without inferring origin from identity alone." }, { "name": "Action eligibility", "kind": "state", "unit_or_values": "supported | conditional | blocked | undetermined for a named action and evidence validity period", "why_it_matters": "Avoids assigning a universal safe or usable state to isoprene." } ], "affordances": [ "Identify and quantify isoprene using a method suitable for the matrix and expected concentration.", "Compare a monomer batch with a specified purity, impurity and inhibitor acceptance envelope.", "Assess whether current evidence supports storage, transfer, sampling or separation under an approved procedure.", "Allocate qualified isoprene to a defined reaction and track consumption, residual monomer and linked products.", "Flag uncertain or deteriorating material for reassessment and restrict dependent actions.", "Associate measured isoprene with supported source hypotheses while preserving unresolved attribution." ] }, "sources": [], "structure": { "bundles": [ { "id": "monomer-identity", "name": "Monomer identity", "description": "Establish what evidence makes the represented substance isoprene.", "rationale": "Its formula, common name and association with rubber each permit specific misidentifications.", "layers": [ { "id": "molecular-recognition", "name": "Molecular recognition", "description": "Resolve the branched conjugated-diene structure.", "findings": [ { "id": "connectivity-confirmation", "name": "Connectivity confirmation", "description": "Record evidence that identifies the isoprene structure rather than merely its molecular formula.", "questions": [ { "text": "What structural identifier establishes 2-methyl-1,3-butadiene?", "kind": "definition", "id": "connectivity-confirmation-q01" }, { "text": "Which analytical observations distinguish it from other C5H8 compounds in this sample?", "kind": "measurement", "id": "connectivity-confirmation-q02" } ] } ] }, { "id": "free-monomer-boundary", "name": "Free monomer boundary", "description": "Distinguish molecular isoprene from chemically incorporated units.", "findings": [ { "id": "monomer-versus-derived-material", "name": "Monomer versus derived material", "description": "Record whether a reference concerns free isoprene, residual monomer or only a structural relationship.", "questions": [ { "text": "Does the evidence demonstrate free isoprene or only an isoprene-derived unit in another molecule or polymer?", "kind": "boundary", "id": "monomer-versus-derived-material-q01" }, { "text": "Which host-material or product model should own the remainder of the represented material?", "kind": "boundary", "id": "monomer-versus-derived-material-q02" } ] } ] } ] }, { "id": "composition-and-use-fitness", "name": "Composition and use fitness", "description": "Determine what accompanies the isoprene and whether that composition suits its intended use.", "rationale": "Identical monomer identity does not establish interchangeable feedstock, reagent or calibration suitability.", "layers": [ { "id": "monomer-assay", "name": "Monomer assay", "description": "Express isoprene content with a defensible measurement basis.", "findings": [ { "id": "content-and-unresolved-fraction", "name": "Content and unresolved fraction", "description": "Separate quantified isoprene from identified impurities and uncharacterised material.", "questions": [ { "text": "What is the isoprene fraction, and is it a calibrated mass or mole fraction rather than uncorrected chromatographic area?", "kind": "measurement", "id": "content-and-unresolved-fraction-q01" }, { "text": "Which impurities were resolved, and how much composition remains unassigned?", "kind": "measurement", "id": "content-and-unresolved-fraction-q02" } ] } ] }, { "id": "application-acceptance", "name": "Application acceptance", "description": "Evaluate composition against the requirements of a named use.", "findings": [ { "id": "feedstock-or-standard-qualification", "name": "Feedstock or standard qualification", "description": "Bind acceptance to a specific reaction, analytical method or material specification.", "questions": [ { "text": "What limits does the intended use impose on water, other hydrocarbons, oxidation products and inhibitor content?", "kind": "boundary", "id": "feedstock-or-standard-qualification-q01" }, { "text": "Does the available assay justify acceptance, or must the batch be reassessed before allocation?", "kind": "action", "id": "feedstock-or-standard-qualification-q02" } ] } ] } ] }, { "id": "phase-and-sampling", "name": "Phase and sampling", "description": "Represent where the isoprene resides and what a measurement actually samples.", "rationale": "Isoprene measurements must distinguish bulk liquid, headspace and dilute occurrences.", "layers": [ { "id": "phase-inventory", "name": "Phase inventory", "description": "Relate quantity and concentration to phase and physical conditions.", "findings": [ { "id": "phase-specific-quantity", "name": "Phase-specific quantity", "description": "Record the represented phase, its amount and the conditions supporting interpretation.", "questions": [ { "text": "What temperature, absolute pressure and phase apply to this quantity of isoprene?", "kind": "measurement", "id": "phase-specific-quantity-q01" }, { "text": "Does the reported amount include liquid, headspace and dissolved isoprene, or only one compartment?", "kind": "boundary", "id": "phase-specific-quantity-q02" } ] } ] }, { "id": "sample-representativeness", "name": "Sample representativeness", "description": "Assess whether collection and analysis preserve the intended isoprene observation.", "findings": [ { "id": "sampling-loss-and-interference", "name": "Sampling loss and interference", "description": "Attach recovery, selectivity and holding-time evidence to the reported result.", "questions": [ { "text": "What validation bounds isoprene loss or change during collection, transport and storage?", "kind": "provenance", "id": "sampling-loss-and-interference-q01" }, { "text": "What blanks, recovery checks and interference resolution support this concentration and its uncertainty?", "kind": "measurement", "id": "sampling-loss-and-interference-q02" } ] } ] } ] }, { "id": "stabilisation-and-deterioration", "name": "Stabilisation and deterioration", "description": "Track inhibition, ageing and unintended chemical change.", "rationale": "Isoprene can form explosive peroxides and undergo hazardous polymerisation. [ICSC 0904](https://www.inchem.org/documents/icsc/icsc/eics0904.htm)", "layers": [ { "id": "inhibitor-condition", "name": "Inhibitor condition", "description": "Assess the actual stabilised formulation and its history.", "findings": [ { "id": "stabilisation-evidence", "name": "Stabilisation evidence", "description": "Keep supplier claims separate from current inhibitor measurements and documented operating requirements.", "questions": [ { "text": "Which inhibitor is present, at what measured concentration and on what date?", "kind": "measurement", "id": "stabilisation-evidence-q01" }, { "text": "What formulation-specific temperature, atmosphere and retest requirements apply, and is compliance documented?", "kind": "provenance", "id": "stabilisation-evidence-q02" } ] } ] }, { "id": "chemical-change-evidence", "name": "Chemical change evidence", "description": "Determine whether oxidation or unintended conversion changes action eligibility.", "findings": [ { "id": "peroxide-and-polymer-assessment", "name": "Peroxide and polymer assessment", "description": "Record test results, condition trends and the limitations of negative observations.", "questions": [ { "text": "What peroxide and polymer-residue measurements are available, with methods, dates and detection limits?", "kind": "measurement", "id": "peroxide-and-polymer-assessment-q01" }, { "text": "Which observed changes or missing results require holding the material from its proposed operation?", "kind": "action", "id": "peroxide-and-polymer-assessment-q02" } ] } ] } ] }, { "id": "handling-and-transformation", "name": "Handling and transformation", "description": "Connect isoprene condition to specific operational decisions and product handoffs.", "rationale": "Flammability and reactive ageing require action-specific evidence; liquid inhibition also does not establish protection of vapour spaces. [ICSC 0904](https://www.inchem.org/documents/icsc/icsc/eics0904.htm)", "layers": [ { "id": "operation-eligibility", "name": "Operation eligibility", "description": "Assess proposed storage, transfer, sampling or separation against applicable controls.", "findings": [ { "id": "operation-evidence-gate", "name": "Operation evidence gate", "description": "Record the procedure and material-condition evidence supporting or blocking the proposed action.", "questions": [ { "text": "Which approved procedure and current material evidence support this particular operation?", "kind": "action", "id": "operation-evidence-gate-q01" }, { "text": "How does that procedure address ignition, exposure, compatibility and vapour-path blockage for this equipment?", "kind": "action", "id": "operation-evidence-gate-q02" }, { "text": "Which dated safety classification and jurisdiction-specific requirements govern the decision?", "kind": "provenance", "id": "operation-evidence-gate-q03" } ] } ] }, { "id": "controlled-conversion", "name": "Controlled conversion", "description": "Track a qualified monomer allocation through a defined transformation.", "findings": [ { "id": "monomer-consumption-and-product-handoff", "name": "Monomer consumption and product handoff", "description": "Account for consumed and residual isoprene while assigning product properties to the appropriate neighbouring model.", "questions": [ { "text": "What reaction record specifies the intended conversion and accepts this batch's impurity and inhibitor profile?", "kind": "provenance", "id": "monomer-consumption-and-product-handoff-q01" }, { "text": "How much isoprene remains, and which product model owns the converted material?", "kind": "boundary", "id": "monomer-consumption-and-product-handoff-q02" } ] } ] } ] }, { "id": "occurrence-and-attribution", "name": "Occurrence and attribution", "description": "Interpret isoprene observations across manufactured material, air and biological samples.", "rationale": "Isoprene has industrial, plant and endogenous human sources, so detection alone cannot establish origin. [NTP profile](https://ntp.niehs.nih.gov/sites/default/files/ntp/roc/content/profiles/isoprene.pdf)", "layers": [ { "id": "occurrence-context", "name": "Occurrence context", "description": "Define the matrix and observation represented by an isoprene result.", "findings": [ { "id": "concentration-basis", "name": "Concentration basis", "description": "Preserve distinctions between bulk composition, gas mixing ratio and mass concentration.", "questions": [ { "text": "What matrix, location, sampling interval and physical conditions does the result represent?", "kind": "measurement", "id": "concentration-basis-q01" }, { "text": "Is a gas result expressed as isoprene mole fraction, carbon-equivalent fraction or mass per volume, and what conversion basis applies?", "kind": "definition", "id": "concentration-basis-q02" } ] } ] }, { "id": "source-hypotheses", "name": "Source hypotheses", "description": "Separate measured presence from inferred origin and downstream interpretation.", "findings": [ { "id": "attribution-evidence-and-limits", "name": "Attribution evidence and limits", "description": "Record competing explanations and the evidence needed to distinguish them.", "questions": [ { "text": "What process records, paired samples or contextual observations support each proposed isoprene source?", "kind": "provenance", "id": "attribution-evidence-and-limits-q01" }, { "text": "Which source alternatives remain unresolved, and which atmospheric or biological model must evaluate further implications?", "kind": "boundary", "id": "attribution-evidence-and-limits-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-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "biogenic isoprene (plant/algal emission)", "petroleum-derived monomer (C5 cracker / extraction)", "synthetic polyisoprene (cis-1,4 / trans-1,4 / 3,4)", "natural rubber (cis-1,4 polyisoprene from Hevea and other plants)", "gutta-percha / balata (trans-1,4 polyisoprene)", "isoprene rubber latex and solution grades", "hemiterpene / terpenoid building-block (IPP/DMAPP pathway)" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of isoprene this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which validated analytical methods and acceptance criteria adequately distinguish isoprene from interfering compounds in each intended matrix?", "Which inhibitor formulations, atmosphere requirements, storage envelopes and retest intervals apply to the actual supplied grades?", "What validated peroxide and unintended-polymerisation criteria should block each proposed operation, particularly separation or heating?", "Which current jurisdictional classifications, exposure criteria and transport requirements apply to the represented formulation and activity?", "What evidence is sufficient for source attribution in ambient air or breath without importing unsupported atmospheric or diagnostic conclusions?" ], "statistics": { "bundles": 7, "layers": 13, "findings": 13, "questions": 26 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "chemical substance or material", "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 isoprene, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise isoprene, assess the condition of an identified quantity or occurrence, and determine which handling, measurement or transformation actions its evidence supports.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Described in 60 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 isoprene, 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", "use it up, and then need more of it" ], "howItIsRecognised": [ "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay." ], "relatedModels": [], "standing": "Described in 60 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 isoprene from another, and a isoprene 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 isoprene, 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 isoprene, 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 isoprene 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 isoprene, 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 isoprene, 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 isoprene 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 isoprene 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 isoprene, 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 isoprene, 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 isoprene 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 isoprene from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a isoprene, 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 isoprene, 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 isoprene 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 isoprene 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 isoprene, 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 isoprene, 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 isoprene 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 isoprene is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a isoprene, 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 isoprene, 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 isoprene 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 isoprene is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a isoprene, 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 isoprene, 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 isoprene 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 isoprene 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 isoprene is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a isoprene, 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 isoprene, 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 isoprene 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 isoprene 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 isoprene, 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 isoprene, 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 isoprene 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 isoprene 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 isoprene between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a isoprene, 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 isoprene, 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 isoprene 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 isoprene, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a isoprene 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 isoprene, 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 isoprene, 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 isoprene is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "use-and-operation", "name": "Use and operation", "description": "What can be done with a isoprene and what it takes to do it.", "rationale": "An agent that can recognise a thing but not act on it has only half a model.", "layers": [ { "id": "intended-use", "name": "Intended use and function", "description": "What a isoprene is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a isoprene performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a isoprene, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "function-and-purpose-q02", "text": "Who or what asserted this about the use of a isoprene, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "function-and-purpose-q03", "text": "What may an agent decide or do once the use of a isoprene is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "handling-and-procedure", "name": "Handling and procedure", "description": "The steps, skills and tools involved in using a isoprene.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a isoprene at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a isoprene, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "procedures-and-skills-q02", "text": "Who or what asserted this about handling a isoprene, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "procedures-and-skills-q03", "text": "What may an agent decide or do once handling a isoprene is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "supply-and-consumption", "name": "Supply and consumption", "description": "Quantities, rates and what running out means.", "findings": [ { "id": "consumption-and-stock", "name": "Consumption, stock and replenishment", "description": "How much of a isoprene there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a isoprene, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "consumption-and-stock-q02", "text": "Who or what asserted this about the supply of a isoprene, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "consumption-and-stock-q03", "text": "What may an agent decide or do once the supply of a isoprene is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "composition-and-identity", "name": "Composition, grade and chemical identity", "description": "What isoprene is made of and how pure the thing in hand is.", "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.", "layers": [ { "id": "chemical-identity", "name": "Chemical identity", "description": "Formula, structure and the registry numbers that name it unambiguously.", "findings": [ { "id": "identity-record", "name": "Identity and registry numbers", "description": "What identifies this substance across suppliers and regulators.", "questions": [ { "id": "identity-record-q01", "text": "What formula, structure and registry identifiers name isoprene unambiguously?", "kind": "definition" }, { "id": "identity-record-q02", "text": "Which related substances share a name in common use but not an identifier?", "kind": "boundary" } ] } ] }, { "id": "grade-and-impurities", "name": "Grade, purity and impurities", "description": "The specification a batch meets and what else is in it.", "findings": [ { "id": "specification", "name": "Specification and assay", "description": "How purity is stated and measured, and which impurities matter.", "questions": [ { "id": "specification-q01", "text": "What grades of isoprene exist, how is purity assayed, and which impurities are limited?", "kind": "measurement" }, { "id": "specification-q02", "text": "Which use requires which grade, and what happens when a lower grade is substituted?", "kind": "action" } ] } ] } ] }, { "id": "properties-and-behaviour", "name": "Properties and behaviour", "description": "How isoprene behaves under conditions an agent can measure or change.", "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.", "layers": [ { "id": "physical-constants", "name": "Physical constants", "description": "Values that hold for the pure substance, with their conditions.", "findings": [ { "id": "constants-record", "name": "Constants and conditions", "description": "The quantities worth recording and the state they apply in.", "questions": [ { "id": "constants-record-q01", "text": "What are the defining physical constants of isoprene, in what units and under what conditions?", "kind": "measurement" }, { "id": "constants-record-q02", "text": "Which of these values change with grade or form rather than being fixed?", "kind": "boundary" } ] } ] }, { "id": "stability-and-reactivity", "name": "Stability and reactivity", "description": "What it reacts with, degrades into, and how it is stored.", "findings": [ { "id": "incompatibilities", "name": "Incompatibilities and degradation", "description": "What must not meet it, and what it becomes over time.", "questions": [ { "id": "incompatibilities-q01", "text": "What is isoprene incompatible with, and what does it degrade into under storage?", "kind": "definition" }, { "id": "incompatibilities-q02", "text": "What storage and handling does that require, and who is competent to do it?", "kind": "action" } ] } ] } ] }, { "id": "hazard-and-regulation", "name": "Hazard classification and regulation", "description": "How isoprene can harm, and what the law says about holding and moving it.", "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.", "layers": [ { "id": "hazard-class", "name": "Hazard classification", "description": "Classified hazards, exposure limits and protective measures.", "findings": [ { "id": "classified-hazards", "name": "Classified hazards and limits", "description": "The classification, the scheme it belongs to, and the limits set.", "questions": [ { "id": "classified-hazards-q01", "text": "How is isoprene classified for hazard, under which scheme, and what exposure limits apply?", "kind": "definition" }, { "id": "classified-hazards-q02", "text": "What protection does handling require, and what must an agent refuse to do without it?", "kind": "action" } ] } ] }, { "id": "regulatory-identity", "name": "Regulatory identity and control", "description": "Registration, restriction and transport rules by jurisdiction.", "findings": [ { "id": "controls", "name": "Controls and jurisdiction", "description": "Where it is restricted and what the restriction attaches to.", "questions": [ { "id": "controls-q01", "text": "Which registrations, restrictions or transport rules cover isoprene, and where?", "kind": "provenance" }, { "id": "controls-q02", "text": "Does the control attach to the substance, its concentration, or its intended use?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a isoprene 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 isoprene and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a isoprene, 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 isoprene, 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 isoprene 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 isoprene is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a isoprene, 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 isoprene, 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 isoprene is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 9, "layers": 20, "findings": 22, "questions": 60 } } } }