{ "model": { "rank": 6872, "code": "thing-q215865", "model_id": "vr.tr.nacre", "name": "nacre", "purpose": "Enable an agent to recognise nacre, assess its composition, layered structure and condition, and judge its suitability for study, conservation or material use.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q215865/", "tier": 2, "score": 58, "payload": { "layer": "wikidata", "aliases": [ "Abalon" ], "aliasCount": 1, "merged": 1, "knownIn": 58, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q215865", "url": "https://www.wikidata.org/wiki/Q215865", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T23:41:05Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 18.9, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0888a-fa21-79a0-aa2b-118fd4539f38\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: nacre\nSense to describe: (none recorded)\nDomain code: PHY.MAT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 007: 1001 registere", "usd": 0, "recall": true }, "codex": { "seconds": 60.8, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a0888a-fa26-7d72-93dc-0ab192e1bdcb\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: nacre\nRegistry id: vr.tr.nacre\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext for " } } }, "metaModel": { "id": "THING-Q215865", "registryId": "vr.tr.nacre", "name": "nacre", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q215865/", "model": { "registry_id": "vr.tr.nacre", "name": "nacre", "purpose": "Enable an agent to recognise nacre, assess its composition, layered structure and condition, and judge its suitability for study, conservation or material use.", "definition": "Nacre, or mother-of-pearl, is a layered biomineral composite produced by certain molluscs, consisting predominantly of aragonite calcium carbonate platelets separated by thin organic interfaces, forming an iridescent inner shell layer and the substance of nacreous pearls.", "scope_statement": "This model owns nacre as a biologically formed mineral-organic composite, including its occurrence in molluscan shells and pearls, its characteristic architecture, and the condition of a particular sample.", "in_scope": [ "Identification of nacre and distinction from other shell microstructures and imitations", "Mineral composition, organic matrix and incorporated constituents", "Tablet organisation, interfaces, growth layers and structural orientation", "Biological origin and sample extraction or treatment history", "Optical and mechanical behaviour under recorded conditions", "Damage, alteration and suitability for proposed handling or processing" ], "out_of_scope": [ "Whole-mollusc anatomy, ecology and conservation status", "Complete shell anatomy and non-nacreous shell layers", "Pearl cultivation, whole-pearl grading and jewellery valuation", "Pure calcium carbonate as a chemical substance", "Synthetic nacre-inspired composites as independently manufactured materials", "Finished decorative products and the machinery used to manufacture them" ], "distinguishing_features": [ "Identify aragonite tablets organised in layers with an organic matrix; calcium carbonate composition alone does not establish nacre.", "Examine microstructure to distinguish nacre from prismatic, crossed-lamellar or other non-nacreous shell structures.", "Treat iridescence as supporting evidence rather than a decisive test, because coatings and other materials can produce similar appearances.", "Establish biological origin to distinguish natural nacre from synthetic materials that imitate its layered architecture.", "Distinguish the nacreous material from the entire shell or pearl, which may include other structures and constituents." ], "characteristics": [ { "name": "Material identity confidence", "kind": "state", "unit_or_values": "suspected nacre | supported identification | confirmed by stated methods | unresolved", "why_it_matters": "Prevents appearance or a trade name from being treated as sufficient identification." }, { "name": "Biological source and anatomical location", "kind": "relation", "unit_or_values": "identified mollusc taxon and shell region or pearl location; unknown permitted", "why_it_matters": "Connects structural variation to the source and position of the material." }, { "name": "Mineral phase composition", "kind": "measurement", "unit_or_values": "identified phases and fractions in mass % or volume %, with method and uncertainty", "why_it_matters": "Supports identification and detection of mixed layers, contamination or alteration." }, { "name": "Organic matrix content", "kind": "measurement", "unit_or_values": "mass % with dry or hydrated basis, preparation method and uncertainty", "why_it_matters": "Characterises the composite without treating it as pure calcium carbonate." }, { "name": "Tablet dimensions", "kind": "measurement", "unit_or_values": "thickness in nm or µm and lateral dimensions in µm, reported as distributions", "why_it_matters": "Describes the architectural scale and variation within a sample." }, { "name": "Layer and tablet orientation", "kind": "measurement", "unit_or_values": "orientation relative to growth surface and sample axes in degrees, with structural description", "why_it_matters": "Makes directional optical and mechanical observations interpretable." }, { "name": "Hydration and conditioning", "kind": "state", "unit_or_values": "wet | equilibrated at recorded relative humidity | dried | unknown; temperature and duration recorded", "why_it_matters": "Allows comparisons between samples tested or stored under different conditions." }, { "name": "Optical response", "kind": "measurement", "unit_or_values": "reflectance spectrum, colour coordinates or documented appearance at stated viewing and illumination angles", "why_it_matters": "Separates measured optical behaviour from subjective descriptions of lustre." }, { "name": "Mechanical response", "kind": "measurement", "unit_or_values": "modulus in GPa, strength in MPa or fracture toughness in MPa√m, with method, orientation and conditioning", "why_it_matters": "Supports use decisions without assuming a universal mechanical constant for nacre." }, { "name": "Damage and alteration", "kind": "state", "unit_or_values": "mapped cracking, delamination, abrasion, dissolution, discoloration or other observed alteration", "why_it_matters": "Identifies limitations on handling, interpretation and further processing." }, { "name": "Treatment history", "kind": "relation", "unit_or_values": "records of cutting, polishing, bleaching, dyeing, coating, heating or chemical exposure; unknown permitted", "why_it_matters": "Helps distinguish native material properties from preparation or treatment effects." } ], "affordances": [ "Identify a candidate sample using provenance, mineral analysis and microstructural evidence.", "Locate nacreous regions within a shell or pearl and select representative sampling areas.", "Compare samples while accounting for biological source, orientation, hydration and preparation.", "Assess whether damage or treatment compromises structural or optical measurements.", "Choose documented handling, storage or processing conditions appropriate to the sample.", "Evaluate suitability for decorative use, conservation study or research on biological composites." ] }, "sources": [], "structure": { "bundles": [ { "id": "nacre-identification", "name": "Nacre identification", "description": "Establish whether the material is nacre and delimit the nacreous region.", "rationale": "Neither a pearly appearance nor calcium carbonate composition alone identifies nacre.", "layers": [ { "id": "diagnostic-evidence", "name": "Diagnostic evidence", "description": "Combine mineralogical, structural and origin evidence.", "findings": [ { "id": "identification-basis", "name": "Identification basis", "description": "Record the observations supporting nacre identification and the limits of those observations.", "questions": [ { "text": "What evidence establishes layered aragonite tablets with an organic matrix in this material?", "kind": "definition", "id": "identification-basis-q01" }, { "text": "Which analyses or observations distinguish it from non-nacreous shell, a pearlescent coating or a synthetic analogue?", "kind": "boundary", "id": "identification-basis-q02" } ] } ] }, { "id": "material-boundaries", "name": "Material boundaries", "description": "Separate nacre from its containing shell, pearl or finished object.", "findings": [ { "id": "nacreous-region", "name": "Nacreous region", "description": "Locate the material being modelled and identify adjacent constituents.", "questions": [ { "text": "Where does the nacreous region begin and end within the sampled shell, pearl or fragment?", "kind": "boundary", "id": "nacreous-region-q01" }, { "text": "Does the specimen include non-nacreous shell layers, a pearl nucleus, adhesive or a surface coating?", "kind": "measurement", "id": "nacreous-region-q02" } ] } ] } ] }, { "id": "mineral-organic-architecture", "name": "Mineral-organic architecture", "description": "Describe the constituents and their organisation into the nacre composite.", "rationale": "Nacre must be represented through both its composition and its tablet-interface architecture.", "layers": [ { "id": "constituent-composition", "name": "Constituent composition", "description": "Identify mineral phases, organic material and other detected constituents.", "findings": [ { "id": "composition-evidence", "name": "Composition evidence", "description": "Record measured composition without assigning a pure-substance identity to the entire composite.", "questions": [ { "text": "Which mineral phases and organic fractions were measured, using what methods and sample conditioning?", "kind": "measurement", "id": "composition-evidence-q01" }, { "text": "Are detected pigments, trace constituents or foreign materials intrinsic, introduced by treatment or unresolved?", "kind": "provenance", "id": "composition-evidence-q02" } ] } ] }, { "id": "tablets-and-interfaces", "name": "Tablets and interfaces", "description": "Resolve tablet dimensions, organisation and intervening matrix.", "findings": [ { "id": "layered-organisation", "name": "Layered organisation", "description": "Capture the architecture at the scale and orientation actually examined.", "questions": [ { "text": "What distributions of tablet thickness, lateral size and orientation occur in the examined region?", "kind": "measurement", "id": "layered-organisation-q01" }, { "text": "What evidence describes tablet stacking and interfacial continuity, and could preparation have altered their appearance?", "kind": "measurement", "id": "layered-organisation-q02" } ] } ] } ] }, { "id": "biological-and-sample-history", "name": "Biological and sample history", "description": "Connect nacre to its formation context and subsequent specimen history.", "rationale": "Source, growth location and preparation are necessary to interpret variation between nacre samples.", "layers": [ { "id": "formation-context", "name": "Formation context", "description": "Identify the producing organism and the location represented by the sample.", "findings": [ { "id": "source-and-growth-location", "name": "Source and growth location", "description": "Record biological attribution without inferring unavailable growth history.", "questions": [ { "text": "Which mollusc taxon produced the nacre, and what evidence supports that attribution?", "kind": "provenance", "id": "source-and-growth-location-q01" }, { "text": "Which shell region or pearl growth region does the sample represent?", "kind": "provenance", "id": "source-and-growth-location-q02" } ] } ] }, { "id": "specimen-transformation", "name": "Specimen transformation", "description": "Track changes between the biological material and the examined specimen.", "findings": [ { "id": "preparation-and-treatment", "name": "Preparation and treatment", "description": "Link extraction, finishing and analytical preparation to possible changes in the material.", "questions": [ { "text": "How was the nacre removed, sectioned, dried, polished or otherwise prepared?", "kind": "provenance", "id": "preparation-and-treatment-q01" }, { "text": "Which treatments could account for the observed colour, exposed interfaces or surface damage?", "kind": "provenance", "id": "preparation-and-treatment-q02" } ] } ] } ] }, { "id": "optical-and-mechanical-response", "name": "Optical and mechanical response", "description": "Record the behaviour relevant to nacre's appearance and structural performance.", "rationale": "Useful comparisons require measurement conditions and orientation rather than a single generic property value.", "layers": [ { "id": "angle-dependent-appearance", "name": "Angle-dependent appearance", "description": "Characterise lustre, colour and iridescence under specified observation conditions.", "findings": [ { "id": "optical-observation", "name": "Optical observation", "description": "Connect recorded appearance to illumination, viewing geometry and surface preparation.", "questions": [ { "text": "How do reflectance and observed colour vary with illumination and viewing angle?", "kind": "measurement", "id": "optical-observation-q01" }, { "text": "What evidence separates effects of the nacre structure from pigments, polish, dyes or coatings?", "kind": "boundary", "id": "optical-observation-q02" } ] } ] }, { "id": "directional-mechanics", "name": "Directional mechanics", "description": "Characterise mechanical response relative to layers and conditioning.", "findings": [ { "id": "mechanical-test-context", "name": "Mechanical test context", "description": "Attach mechanical results to specimen geometry, loading direction and observed failure.", "questions": [ { "text": "What property was measured, with which test method, geometry, loading direction and hydration state?", "kind": "measurement", "id": "mechanical-test-context-q01" }, { "text": "Where did cracking or separation occur relative to tablets and interfaces?", "kind": "measurement", "id": "mechanical-test-context-q02" } ] } ] } ] }, { "id": "condition-and-intervention", "name": "Condition and intervention", "description": "Assess deterioration and determine appropriate actions for a particular nacre specimen.", "rationale": "A sample's present condition and treatment history constrain its handling, processing and evidential value.", "layers": [ { "id": "damage-and-exposure", "name": "Damage and exposure", "description": "Document alteration of the nacre surface and internal layered structure.", "findings": [ { "id": "condition-map", "name": "Condition map", "description": "Locate damage and distinguish observations from proposed causes.", "questions": [ { "text": "Where are cracks, delamination, surface loss or discoloration present, and how extensive are they?", "kind": "measurement", "id": "condition-map-q01" }, { "text": "What evidence links the observed alteration to chemical exposure, heating, drying, abrasion or another cause?", "kind": "provenance", "id": "condition-map-q02" } ] } ] }, { "id": "handling-and-processing", "name": "Handling and processing", "description": "Translate specimen evidence into handling, conservation or fabrication decisions.", "findings": [ { "id": "intervention-suitability", "name": "Intervention suitability", "description": "Assess proposed actions against the sample's condition, purpose and documented response.", "questions": [ { "text": "What sample-specific evidence supports the proposed cleaning, cutting, polishing, bonding or storage conditions?", "kind": "action", "id": "intervention-suitability-q01" }, { "text": "Would the proposed action remove diagnostic layers, alter optical behaviour or compromise later analysis?", "kind": "action", "id": "intervention-suitability-q02" }, { "text": "If processing generates dust or uses chemicals, which constituents and operation-specific exposure controls need assessment?", "kind": "action", "id": "intervention-suitability-q03" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Composition and platelet dimensions are approximate recall values, not universal specifications; verify them for the species and specimen concerned.", "Nacre is a heterogeneous biological material, so identifiers and hazard classifications for pure calcium carbonate should not automatically be assigned to it.", "Species identification is needed before determining applicable harvesting or trade rules." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of nacre 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": [ "Sheet nacre, with platelets arranged in laterally offset layers", "Columnar nacre, with platelets arranged in approximately aligned stacks" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of nacre 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": [ "Jewellery and decorative inlay", "Buttons and ornamental fittings", "Watch dials and musical-instrument decoration", "Reference material for research on biomineralisation and fracture resistance", "Inspiration for engineered layered composites" ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of nacre 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": "Mineral mass fraction", "typical_range": "Approximately 95; varies with species and preparation", "unit": "%" }, { "quantity": "Aragonite platelet thickness", "typical_range": "Approximately 0.2-1; varies with species and shell region", "unit": "µm" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of nacre 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": [ "Acids dissolve the calcium carbonate and damage the surface.", "Impact and excessive bending can cause cracking, chipping or separation between layers.", "Abrasive cleaning can scratch the surface and reduce lustre.", "Strong heating can degrade the organic matrix and damage the composite.", "Cutting, drilling and sanding generate dust that requires exposure control." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of nacre 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": [ "Commercial appearance and available shell sizes vary with the mollusc species harvested or cultivated in each region.", "Harvest and trade restrictions depend on species and jurisdiction; some source molluscs are subject to CITES controls." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of nacre 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": "Aragonite", "difference": "Aragonite is a crystalline calcium carbonate mineral; nacre is a biological composite incorporating aragonite platelets and an organic matrix." }, { "name": "Pearl", "difference": "A pearl is a discrete object formed by a mollusc; nacre is a material that constitutes nacreous pearls, while some pearls are non-nacreous." }, { "name": "Mollusc shell", "difference": "A shell is a complete biological structure that may contain several microstructural layers; nacre is only one possible layer type and is absent from many shells." }, { "name": "Mother-of-pearl", "difference": "This is a common synonym for nacre, especially shell nacre used decoratively, rather than a separate material." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of nacre this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "What minimum combination of mineralogical and microstructural evidence should qualify a specimen as confirmed nacre when biological provenance is unavailable?", "Which architectural distinctions between biological sources require explicit categories, and which are better represented by measurements?", "Which preparation and conditioning protocols permit meaningful comparison of organic content and mechanical properties across studies?", "How should strongly altered or fossil material be classified when nacre architecture survives but its original mineral or organic constituents do not?", "What evidence supports handling and treatment limits for different nacre sources, conditions and intended uses?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 17, "questions": 28 } }, "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 nacre, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to recognise nacre, assess its composition, layered structure and condition, and judge its suitability for study, conservation or material use.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: Abalon.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 58 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 nacre, 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": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "Abalon" ] } ], "standing": "Described in 58 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one nacre from another, and a nacre 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 nacre, 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 nacre, 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 nacre 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 nacre, 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 nacre, 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 nacre 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 nacre 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 nacre, 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 nacre, 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 nacre 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 nacre from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a nacre, 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 nacre, 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 nacre 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 nacre 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 nacre, 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 nacre, 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 nacre 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 nacre is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a nacre, 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 nacre, 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 nacre 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 nacre is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a nacre, 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 nacre, 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 nacre 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 nacre 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 nacre is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a nacre, 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 nacre, 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 nacre 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 nacre 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 nacre, 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 nacre, 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 nacre 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 nacre 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 nacre between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a nacre, 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 nacre, 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 nacre 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 nacre, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a nacre 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 nacre, 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 nacre, 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 nacre 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 nacre 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 nacre is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a nacre performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a nacre, 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 nacre, 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 nacre 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 nacre.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a nacre at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a nacre, 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 nacre, 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 nacre 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 nacre there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a nacre, 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 nacre, 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 nacre 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 nacre 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 nacre 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 nacre 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 nacre 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 nacre, 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 nacre 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 nacre 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 nacre 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 nacre, 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 nacre 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 nacre and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a nacre, 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 nacre, 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 nacre 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 nacre is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a nacre, 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 nacre, 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 nacre 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 } } } }