{ "model": { "rank": 5495, "code": "thing-q60424", "model_id": "vr.tr.terracotta", "name": "terracotta", "purpose": "Enable an agent to recognise terracotta as a fired-clay material, assess its condition and suitability, and choose handling, use or conservation actions appropriate to its body and surface.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.OBJ", "industry": "", "version": "", "url": "/models/thing/q60424/", "tier": 2, "score": 67, "payload": { "layer": "wikidata", "aliases": [ "kawarake", "Zizenhauser Terracotta", "Provencal pottery", "englazed terracotta", "architectural terracotta", "glazed architectural terra-cotta" ], "aliasCount": 6, "merged": 6, "knownIn": 67, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q60424", "url": "https://www.wikidata.org/wiki/Q60424", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-09T22:29:22Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 18.5, "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: 01a08849-57e6-7f92-bc14-5ea597e1cb25\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: terracotta\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 regi", "usd": 0, "recall": true }, "codex": { "seconds": 59.7, "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: 01a08849-57e6-7833-9865-443e293ce57a\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: terracotta\nRegistry id: vr.tr.terracotta\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nCo" } } }, "metaModel": { "id": "THING-Q60424", "registryId": "vr.tr.terracotta", "name": "terracotta", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q60424/", "model": { "registry_id": "vr.tr.terracotta", "name": "terracotta", "purpose": "Enable an agent to recognise terracotta as a fired-clay material, assess its condition and suitability, and choose handling, use or conservation actions appropriate to its body and surface.", "definition": "Terracotta is a fired-clay ceramic, generally porous and commonly reddish or buff, used for pottery, sculpture and building components, with the term also applied to objects made from it.", "scope_statement": "This model owns terracotta in its fired-clay material sense, including how that material is expressed in objects and building components; it excludes terracotta as a colour name and leaves object-specific functions to neighbouring models.", "in_scope": [ "Identification of terracotta bodies and their boundaries with other ceramic materials", "Clay composition, inclusions, forming and firing history", "Body porosity, water absorption and surface treatments", "Material condition, deterioration and repair compatibility", "Material suitability for a stated use and exposure" ], "out_of_scope": [ "Terracotta as a colour applied to unrelated materials", "Unfired clay and clay preparation as independent material or process models", "Stoneware, porcelain and concrete imitation products", "Complete functional models of pots, sculptures, roof tiles and architectural assemblies", "Artistic attribution, market valuation and cultural significance as independent assessments" ], "distinguishing_features": [ "Establish that the body is fired clay rather than unfired earth or a cementitious imitation; colour alone is insufficient.", "Assess body vitrification and absorption when distinguishing terracotta from stoneware or porcelain, recording the terminology used by the relevant ceramic tradition.", "Inspect the body separately from paint, slip or glaze: a terracotta-coloured coating does not establish a terracotta substrate.", "Treat orange-red colour as supporting evidence rather than a requirement; record body colour, composition evidence and firing evidence separately.", "Distinguish a material classification from a product name: a brick, tile or sculpture may have a terracotta body without its function defining the material." ], "characteristics": [ { "name": "Classification evidence", "kind": "category", "unit_or_values": "documented manufacture | analytical identification | visual assessment | unresolved", "why_it_matters": "Separates an established material identity from a provisional appearance-based label." }, { "name": "Body composition and inclusions", "kind": "category", "unit_or_values": "reported clay constituents, mineral inclusions and added temper; method and uncertainty recorded", "why_it_matters": "Supports identification and assessment of differences between original bodies and proposed replacements." }, { "name": "Forming method", "kind": "category", "unit_or_values": "hand-modelled | wheel-thrown | moulded | pressed | extruded | combined | unknown", "why_it_matters": "Helps interpret seams, wall variation and manufacturing marks." }, { "name": "Firing history", "kind": "category", "unit_or_values": "documented or inferred firing conditions, number of firings and confidence", "why_it_matters": "Provides context for body colour, ceramic development and manufacturing defects." }, { "name": "Body and surface colour", "kind": "measurement", "unit_or_values": "Munsell notation or CIELAB coordinates under stated observation conditions", "why_it_matters": "Distinguishes body variation from coatings, deposits and colour-based misidentification." }, { "name": "Water absorption", "kind": "measurement", "unit_or_values": "% mass gain under a named conditioning and test method", "why_it_matters": "Provides evidence for moisture behaviour without assuming every terracotta body performs alike." }, { "name": "Open porosity", "kind": "measurement", "unit_or_values": "% by volume under a named test method", "why_it_matters": "Supports comparison of moisture-accessible pore space across bodies and repairs." }, { "name": "Surface system", "kind": "category", "unit_or_values": "bare body | slip | glaze | paint | other coating | mixed | unknown", "why_it_matters": "Surface layers can alter appearance, wetting and treatment compatibility." }, { "name": "Material condition", "kind": "state", "unit_or_values": "observed cracks, losses, powdering, scaling, deposits and surface detachment, with location and extent", "why_it_matters": "Makes deterioration assessable without presuming its cause." }, { "name": "Exposure and use", "kind": "relation", "unit_or_values": "link to intended use, moisture sources, temperature regime and supporting assembly", "why_it_matters": "Connects material evidence to the conditions under which suitability must be judged." } ], "affordances": [ "Classify a suspected terracotta body and record the evidence and unresolved alternatives.", "Compare bodies or replacement samples using composition, absorption, surface and fabrication evidence.", "Map cracking, powdering, salt deposits and glaze or coating loss for condition monitoring.", "Assess whether evidence supports a proposed indoor, outdoor, wet or heated use.", "Select proportionate inspection or testing while recording sampling and surface-disturbance constraints.", "Evaluate cleaning, bonding, filling or coating proposals for compatibility with the body and existing finishes." ] }, "sources": [], "structure": { "bundles": [ { "id": "material-identity", "name": "Material identity", "description": "Establishes what the terracotta designation means for the material under examination.", "rationale": "Terracotta can be used as a material, product or colour label, and those uses must not be conflated.", "layers": [ { "id": "ceramic-body-identification", "name": "Ceramic body identification", "description": "Examines evidence that the substrate is a terracotta ceramic body.", "findings": [ { "id": "fired-clay-body", "name": "Fired-clay body", "description": "Record evidence for fired clay and distinguish body observations from surface appearance.", "questions": [ { "text": "What manufacturing record, exposed-body observation or analysis supports identification as fired clay?", "kind": "definition", "id": "fired-clay-body-q01" }, { "text": "Could the observed terracotta appearance instead come from a coating on another material?", "kind": "boundary", "id": "fired-clay-body-q02" } ] } ] }, { "id": "ceramic-classification-boundaries", "name": "Ceramic classification boundaries", "description": "Locates terracotta within the terminology used for the relevant ceramic tradition or industry.", "findings": [ { "id": "terracotta-designation", "name": "Terracotta designation", "description": "Make the basis of the label explicit where earthenware, brick, tile and architectural terracotta terminology overlaps.", "questions": [ { "text": "Which source or production tradition calls this body terracotta, and what does that designation include?", "kind": "provenance", "id": "terracotta-designation-q01" }, { "text": "What body evidence supports its distinction from stoneware, porcelain or other neighbouring ceramic classes?", "kind": "boundary", "id": "terracotta-designation-q02" } ] } ] } ] }, { "id": "body-and-manufacture", "name": "Body and manufacture", "description": "Records the material recipe and production evidence needed to interpret the fired body.", "rationale": "Bodies sold or described as terracotta can differ in composition and production history, affecting comparison and replacement decisions.", "layers": [ { "id": "clay-and-inclusions", "name": "Clay and inclusions", "description": "Separates documented composition from constituents inferred through examination.", "findings": [ { "id": "body-recipe-evidence", "name": "Body recipe evidence", "description": "Record clay constituents and inclusions, including whether apparent temper is known to have been deliberately added.", "questions": [ { "text": "What records or analyses identify the clay body and its non-clay inclusions?", "kind": "provenance", "id": "body-recipe-evidence-q01" }, { "text": "Which inclusions are measured or observed, and what evidence distinguishes added temper from naturally present grains?", "kind": "measurement", "id": "body-recipe-evidence-q02" } ] } ] }, { "id": "forming-and-firing", "name": "Forming and firing", "description": "Relates manufacturing evidence to body structure and visible variation.", "findings": [ { "id": "production-signatures", "name": "Production signatures", "description": "Record forming marks, joins, firing variation and deformation without treating every irregularity as later damage.", "questions": [ { "text": "Which marks, seams or internal structures support the proposed forming method?", "kind": "provenance", "id": "production-signatures-q01" }, { "text": "What evidence supports the firing history, and which conditions remain unknown rather than inferred from colour alone?", "kind": "provenance", "id": "production-signatures-q02" }, { "text": "Which cracks or distortions appear to originate in manufacture rather than subsequent use?", "kind": "boundary", "id": "production-signatures-q03" } ] } ] } ] }, { "id": "pores-surfaces-and-exposure", "name": "Pores, surfaces and exposure", "description": "Connects body absorption and surface systems to the actual service environment.", "rationale": "A terracotta label does not by itself establish water resistance, frost suitability or the behaviour of a coated surface.", "layers": [ { "id": "moisture-accessible-body", "name": "Moisture-accessible body", "description": "Records comparable evidence about water uptake and accessible pore space.", "findings": [ { "id": "absorption-and-porosity-evidence", "name": "Absorption and porosity evidence", "description": "Keep measurements attached to their methods, specimens and conditioning rather than treating values as universal material constants.", "questions": [ { "text": "What water absorption or open-porosity results exist, with units, test method and specimen condition?", "kind": "measurement", "id": "absorption-and-porosity-evidence-q01" }, { "text": "Do the tested specimens represent the body, finish and weathering state of the terracotta being assessed?", "kind": "boundary", "id": "absorption-and-porosity-evidence-q02" } ] } ] }, { "id": "surface-and-service-interface", "name": "Surface and service interface", "description": "Examines how finishes and exposed body areas meet water, heat and other use conditions.", "findings": [ { "id": "finish-continuity-and-use-evidence", "name": "Finish continuity and use evidence", "description": "Record finish type, coverage and defects alongside evidence for the proposed service conditions.", "questions": [ { "text": "Which faces are bare, slipped, glazed, painted or otherwise coated, and where are those layers cracked or missing?", "kind": "measurement", "id": "finish-continuity-and-use-evidence-q01" }, { "text": "What product-specific testing or documented service history supports the proposed moisture and temperature exposure?", "kind": "provenance", "id": "finish-continuity-and-use-evidence-q02" }, { "text": "What additional evidence is needed before approving a wet, freezing, heated or food-contact use?", "kind": "action", "id": "finish-continuity-and-use-evidence-q03" } ] } ] } ] }, { "id": "condition-and-compatible-intervention", "name": "Condition and compatible intervention", "description": "Supports diagnosis and proportionate action on deteriorated terracotta bodies and finishes.", "rationale": "Similar visible damage can arise through different mechanisms, while an unsuitable intervention can affect a porous body or its surface layers.", "layers": [ { "id": "deterioration-evidence", "name": "Deterioration evidence", "description": "Separates observed material loss or deposits from hypotheses about their causes.", "findings": [ { "id": "damage-patterns-and-causes", "name": "Damage patterns and causes", "description": "Map body cracking, powdering, scaling, deposits and finish detachment, and attach diagnostic confidence to causal interpretations.", "questions": [ { "text": "Where are cracks, powdering, scaling, deposits or finish detachments located, and how has their extent changed?", "kind": "measurement", "id": "damage-patterns-and-causes-q01" }, { "text": "What evidence distinguishes salt-related or moisture-related deterioration from impact, thermal effects or manufacturing defects?", "kind": "boundary", "id": "damage-patterns-and-causes-q02" }, { "text": "Which inspection or analysis could resolve the cause while respecting the object's sampling constraints?", "kind": "action", "id": "damage-patterns-and-causes-q03" } ] } ] }, { "id": "treatment-and-replacement", "name": "Treatment and replacement", "description": "Assesses proposed interventions against the properties of the original body, finish and use.", "findings": [ { "id": "intervention-compatibility", "name": "Intervention compatibility", "description": "Evaluate cleaning agents, adhesives, fills, coatings and replacement terracotta through documented compatibility and trial evidence.", "questions": [ { "text": "What trial or prior evidence supports the proposed treatment's compatibility with this body and its glaze, slip or paint?", "kind": "action", "id": "intervention-compatibility-q01" }, { "text": "How does a proposed fill or replacement compare with the original in moisture behaviour, movement, strength and appearance?", "kind": "measurement", "id": "intervention-compatibility-q02" }, { "text": "What observations would require stopping or revising the intervention?", "kind": "action", "id": "intervention-compatibility-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": [ "The registry provides no sense; this description assumes the ceramic material and its products.", "Terracotta has no single fixed composition, firing temperature or absorption value; quantitative properties require a specified body and product.", "Boundaries among terracotta, earthenware and architectural ceramics vary by craft tradition and industry terminology." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of terracotta 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": [ "Unglazed terracotta", "Glazed terracotta", "Architectural terracotta", "Sculptural terracotta" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of terracotta 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": [ "Flowerpots and horticultural containers", "Sculpture, figurines and decorative objects", "Roof tiles and floor tiles", "Architectural ornament and facade components", "Vessels and other pottery" ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of terracotta 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": "Firing temperature", "typical_range": "Approximately 900-1100; varies with clay composition and intended properties", "unit": "°C" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of terracotta 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": [ "Brittle fracture from impact or excessive mechanical loading", "Freeze-thaw damage when a porous body becomes sufficiently saturated", "Salt crystallization causing flaking or surface loss", "Cracking from thermal shock or uneven drying and firing", "Respirable crystalline silica exposure during dust-producing cutting, grinding or clay preparation" ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of terracotta 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": [ "Local clay composition and firing conditions produce regional differences in colour, texture and porosity.", "Architectural usage varies: terracotta can denote traditional clay ornament or manufactured facade units, including glazed products." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of terracotta 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": "Clay", "difference": "Clay is the mineral-based raw material; terracotta has been fired into a ceramic body." }, { "name": "Earthenware", "difference": "Earthenware is the broader class of porous fired pottery; terracotta overlaps it and conventionally emphasizes clay-bodied sculpture, building products and commonly unglazed reddish wares." }, { "name": "Stoneware", "difference": "Stoneware typically has a more vitrified, less absorbent body; terracotta generally remains porous." }, { "name": "Porcelain", "difference": "Porcelain is typically white, highly vitrified and potentially translucent in thin sections; terracotta is generally opaque, coloured and porous." }, { "name": "Brick", "difference": "Brick denotes a masonry unit by form and function; terracotta denotes a ceramic material and associated products, so the categories can overlap." }, { "name": "Terracotta colour", "difference": "The colour sense denotes an orange-brown hue independently of material; this description covers the ceramic material and objects made from it." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of terracotta this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which authoritative ceramic and architectural sources should establish the intended boundary between terracotta, earthenware and glazed architectural terracotta?", "Which absorption, porosity and exposure-test methods apply to each intended product use, and when are their results comparable?", "What evidence is sufficient to distinguish firing-related colour variation and defects from later alteration without destructive sampling?", "Which conservation sources establish treatment compatibility for the relevant body, salts and surface finishes?", "Does an existing Vercy ceramic or earthenware model already own this material scope, requiring this registry entry to link to it?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 15, "questions": 27 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "device, machine or tool", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a terracotta, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to recognise terracotta as a fired-clay material, assess its condition and suitability, and choose handling, use or conservation actions appropriate to its body and surface.", "characteristics": { "substance": "material", "origin": "manufactured", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: kawarake, Zizenhauser Terracotta, Provencal pottery, englazed terracotta, architectural terracotta, glazed architectural terra-cotta.", "6 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 67 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 terracotta, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things." ], "relatedModels": [ { "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": [ "kawarake", "Zizenhauser Terracotta", "Provencal pottery", "englazed terracotta", "architectural terracotta", "glazed architectural terra-cotta" ] } ], "standing": "Described in 67 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 6 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 terracotta from another, and a terracotta 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 terracotta, 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 terracotta, 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 terracotta 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 terracotta, 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 terracotta, 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 terracotta 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 terracotta 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 terracotta, 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 terracotta, 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 terracotta 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 terracotta from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a terracotta, 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 terracotta, 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 terracotta 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 terracotta 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 terracotta, 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 terracotta, 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 terracotta 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 terracotta is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a terracotta, 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 terracotta, 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 terracotta 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 terracotta is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a terracotta, 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 terracotta, 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 terracotta 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 terracotta 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 terracotta is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a terracotta, 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 terracotta, 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 terracotta 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 terracotta 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 terracotta, 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 terracotta, 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 terracotta 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 terracotta 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 terracotta between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a terracotta, 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 terracotta, 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 terracotta 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 terracotta, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a terracotta 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 terracotta, 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 terracotta, 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 terracotta is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "function-and-principle", "name": "Function and operating principle", "description": "What terracotta is for and how it achieves it.", "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.", "layers": [ { "id": "intended-function", "name": "Intended function", "description": "The job it does, and the jobs it is used for anyway.", "findings": [ { "id": "function-record", "name": "Function, principle and variants", "description": "What it does, how, and which variants do it differently.", "questions": [ { "id": "function-record-q01", "text": "What function does terracotta perform, on what operating principle, and which variants differ in that principle?", "kind": "definition" }, { "id": "function-record-q02", "text": "What use falls outside the intended function but happens in practice?", "kind": "boundary" } ] } ] }, { "id": "capacity-and-rating", "name": "Capacity and rating", "description": "The numbers that say what it can do and where it stops.", "findings": [ { "id": "ratings", "name": "Ratings and their conditions", "description": "Rated capacity, power, throughput and the conditions each assumes.", "questions": [ { "id": "ratings-q01", "text": "What ratings characterise terracotta, in what units, and under what stated conditions?", "kind": "measurement" }, { "id": "ratings-q02", "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?", "kind": "action" } ] } ] } ] }, { "id": "operation-and-state", "name": "Operation, controls and state", "description": "How terracotta is operated and what state it is in right now.", "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.", "layers": [ { "id": "controls-and-modes", "name": "Controls and modes", "description": "What can be set, what that changes, and what is interlocked.", "findings": [ { "id": "control-surface", "name": "Control surface and interlocks", "description": "The settings available and the conditions that block them.", "questions": [ { "id": "control-surface-q01", "text": "What controls and modes does terracotta have, and what does each change?", "kind": "definition" }, { "id": "control-surface-q02", "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?", "kind": "action" } ] } ] }, { "id": "condition-and-maintenance", "name": "Condition and maintenance", "description": "Wear, service intervals, consumables and the line between working and broken.", "findings": [ { "id": "service-record", "name": "Condition, service and consumables", "description": "What is consumed, what is serviced, and how condition is judged.", "questions": [ { "id": "service-record-q01", "text": "What consumables and service does terracotta need, at what interval, and on whose authority?", "kind": "measurement" }, { "id": "service-record-q02", "text": "What evidence separates a unit that is working from one that is out of service?", "kind": "boundary" } ] } ] } ] }, { "id": "kind-model-unit", "name": "Kind, model and unit", "description": "Whether a claim about terracotta is about the kind, a product line, or one physical unit.", "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.", "layers": [ { "id": "level-of-reference", "name": "Level of reference", "description": "The three levels and what belongs at each.", "findings": [ { "id": "level-rules", "name": "What belongs to kind, model and unit", "description": "Which properties are shared by all of them and which are not.", "questions": [ { "id": "level-rules-q01", "text": "Which facts about terracotta hold for every one of them, which for a model, and which only for one unit?", "kind": "boundary" }, { "id": "level-rules-q02", "text": "What identifies an individual unit, and what should an agent do when it has only the kind?", "kind": "action" } ] } ] }, { "id": "standards-and-conformity", "name": "Standards and conformity", "description": "The standards a working example must meet and who attests it.", "findings": [ { "id": "conformity", "name": "Standards, marks and attestation", "description": "Which standard applies, who certifies, and what the mark means.", "questions": [ { "id": "conformity-q01", "text": "Which standards govern terracotta, issued by whom, and what does conformity actually assert?", "kind": "provenance" }, { "id": "conformity-q02", "text": "What may an agent conclude from a certification mark, and what may it not?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a terracotta 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 terracotta and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a terracotta, 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 terracotta, 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 terracotta 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 terracotta is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a terracotta, 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 terracotta, 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 terracotta is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 8, "layers": 17, "findings": 19, "questions": 51 } } } }