{ "model": { "rank": 6365, "code": "thing-q213371", "model_id": "vr.tr.vitreous-enamel", "name": "vitreous enamel", "purpose": "Enable an AI agent to recognise vitreous enamel, assess its coating and interface condition, and decide which fabrication, use, inspection or repair actions the available evidence supports.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q213371/", "tier": 2, "score": 61, "payload": { "layer": "wikidata", "aliases": [ "vernis brun", "Finift" ], "aliasCount": 2, "merged": 2, "knownIn": 61, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q213371", "url": "https://www.wikidata.org/wiki/Q213371", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T14:04:40Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.01123054, "turns": 1, "seconds": 180.1, "error": null }, "codex": { "seconds": 103.5, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07c2a-b258-7a33-92a8-07279c56b955\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: vitreous enamel\nRegistry id: vr.tr.vitreous-enamel\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (" } } }, "metaModel": { "id": "THING-Q213371", "registryId": "vr.tr.vitreous-enamel", "name": "vitreous enamel", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q213371/", "model": { "registry_id": "vr.tr.vitreous-enamel", "name": "vitreous enamel", "purpose": "Enable an AI agent to recognise vitreous enamel, assess its coating and interface condition, and decide which fabrication, use, inspection or repair actions the available evidence supports.", "definition": "Vitreous enamel is a substantially glassy inorganic coating produced by fusing a formulated glass frit onto a metal substrate so that the melt wets the metal and solidifies as a chemically bonded, continuous vitreous layer.", "scope_statement": "This model owns the identity, formulation, fired structure, substrate interface, condition and application-specific performance of vitreous enamel under vr.tr.vitreous-enamel; it records enamel feedstock as a precursor and links to the supporting object without owning that object's complete design.", "in_scope": [ "Evidence that a material is vitreous enamel, including distinctions between unfired preparation and fired coating", "Enamel formulation, colour, opacity and batch identity", "Substrate compatibility, surface preparation and enamel-to-substrate interface", "Coat arrangement, application history and firing history", "Coating defects, deterioration and measured functional performance", "Evidence supporting cleaning, continued use, repair, refiring or replacement" ], "out_of_scope": [ "Complete design and structural integrity of the coated vessel, appliance, panel or artwork", "Bulk substrate metallurgy except where it affects enamelling or coating behaviour", "Organic enamel paints, powder coatings and resin-based cold enamel", "Standalone glass articles, ceramic bodies and dental enamel", "Kiln and coating-line equipment design", "Artistic attribution, ownership and market valuation of enamelled objects" ], "distinguishing_features": [ "Require evidence of an inorganic vitreous coating produced by firing; gloss or the commercial word 'enamel' alone does not establish identity. [International Enamellers Institute](https://iei-world.org/enamel/)", "Distinguish vitreous enamel from organic enamel paint or cold enamel using documented composition and processing, supplemented by material analysis when identification remains uncertain.", "Distinguish unfired frit, powder or slip from a finished enamel coating by recording whether application and fusion to the substrate have occurred. [IEI production overview](https://iei-world.org/introduction/)", "Distinguish an enamel coating from a solid porcelain or glass object by identifying the supporting substrate and coating interface.", "For enamel on glass or ceramic, record substrate and decorative function explicitly and flag the terminology boundary with glaze or overglaze for review." ], "characteristics": [ { "name": "Material stage", "kind": "state", "unit_or_values": "frit or powder; slip; applied and unfired; fired; repaired composite; unknown", "why_it_matters": "Prevents properties of a finished coating from being assigned to its precursor." }, { "name": "Formulation identity", "kind": "relation", "unit_or_values": "manufacturer, formulation designation, batch and supporting composition record", "why_it_matters": "Connects compatibility and performance claims to the actual enamel used." }, { "name": "Supporting substrate", "kind": "relation", "unit_or_values": "linked object and substrate material or alloy; surface location", "why_it_matters": "Coating behaviour and possible interventions depend on the supporting material." }, { "name": "Coat arrangement", "kind": "category", "unit_or_values": "ordered coats with ground, cover, decorative or counter-enamel role; unknown role permitted", "why_it_matters": "Locates observations within the enamel system and distinguishes visible surface condition from underlying layers." }, { "name": "Fired coating thickness", "kind": "measurement", "unit_or_values": "µm, with location, method, uncertainty and individual-coat or total designation", "why_it_matters": "Supports comparison with the intended coating build and interpretation of local defects." }, { "name": "Firing exposure", "kind": "measurement", "unit_or_values": "temperature in °C against time in minutes, atmosphere and firing count; object measurement or furnace setting identified", "why_it_matters": "Makes the actual thermal history distinguishable from a nominal firing recipe." }, { "name": "Thermal expansion compatibility", "kind": "measurement", "unit_or_values": "enamel and substrate expansion coefficients in K^-1 over stated temperature intervals", "why_it_matters": "Supports assessment of thermal mismatch without assuming a universal compatible pairing." }, { "name": "Optical finish", "kind": "measurement", "unit_or_values": "colour coordinates, gloss at stated geometry, and opacity or transmission under stated conditions", "why_it_matters": "Allows finish acceptance and change detection beyond subjective colour names." }, { "name": "Coating discontinuity", "kind": "state", "unit_or_values": "none detected; pinholes; cracks; chips; blisters; detached areas; exposed substrate; unexamined", "why_it_matters": "Separates intact-looking appearance from evidence about coating continuity." }, { "name": "Adherence assessment", "kind": "measurement", "unit_or_values": "method-specific result or rating, test location, damage caused and acceptance criterion", "why_it_matters": "Prevents incompatible adhesion test results from being treated as interchangeable." }, { "name": "Qualified service conditions", "kind": "relation", "unit_or_values": "linked evidence specifying medium, concentration, temperature, duration, cycling and acceptance criteria", "why_it_matters": "Limits suitability claims to conditions actually evaluated." }, { "name": "Repair material and status", "kind": "state", "unit_or_values": "unrepaired; vitreous repair; organic patch; other repair; unidentified repair; qualification pending or demonstrated", "why_it_matters": "A repaired surface may contain materials with different performance from the original enamel." } ], "affordances": [ "Identify an enamel specimen or coating and record the evidence and remaining uncertainty.", "Compare a proposed enamel, substrate and firing schedule against documented compatibility.", "Map coating defects and select an inspection method suited to the substrate, thickness and object constraints.", "Assess suitability for a specified exposure using relevant coating tests and service evidence.", "Select a supported cleaning, handling or repair action and record its limits.", "Track condition after service or intervention and trigger reassessment when deterioration or exposure changes." ] }, "sources": [ { "id": "wiki-ve", "title": "Vitreous enamel", "url": "https://en.wikipedia.org/wiki/Vitreous_enamel", "what_it_supports": "Common name, distinction from organic enamel paint, artistic techniques, and industrial uses on steel, cast iron and aluminium.", "url_status": "live" }, { "id": "iso-28706", "title": "ISO 28706 (series), Vitreous and porcelain enamels - Determination of resistance to chemical corrosion", "url": "", "what_it_supports": "The ISO/industry identity of the material as \"vitreous and porcelain enamels\" and the standard acid/alkali corrosion tests used on fired coatings." }, { "id": "iso-28721", "title": "ISO 28721 (series), Vitreous and porcelain enamels - Glass-lined apparatus for process plants", "url": "", "what_it_supports": "Glass-lined (enamelled) chemical process equipment as a recognised industrial kind, with quality and chemical-resistance designations." }, { "id": "iso-4531", "title": "ISO 4531, Vitreous and porcelain enamels - Release from enamelled articles in contact with food - Methods of test and limits", "url": "", "what_it_supports": "Food-contact testing and limits for enamelled ware (including lead and cadmium release)." }, { "id": "en-10209", "title": "EN 10209, Cold rolled low carbon steel flat products for vitreous enamelling - Technical delivery conditions", "url": "", "what_it_supports": "Enamelling steels (EK grades), substrate requirements, and fishscaling-related steel quality as used in European production." }, { "id": "kirk-othmer", "title": "Kirk-Othmer Encyclopedia of Chemical Technology, article \"Enamels, Porcelain or Vitreous\"", "url": "", "what_it_supports": "Frit chemistry (alkali borosilicate systems, adherence oxides, titania opacification), firing practice, and industrial coating build-up." }, { "id": "andrews-pei", "title": "Porcelain Enamels: The Preparation, Application, and Properties of Enamels (Andrews)", "url": "", "what_it_supports": "Classic North American industrial practice: wet and dry application, ground/cover coats, defects (fishscale, copperheading, crazing), and property measurement." } ], "structure": { "bundles": [ { "id": "enamel-identity-and-formulation", "name": "Enamel identity and formulation", "description": "Establish what material is present and which formulation its properties belong to.", "rationale": "The enamel name and a glossy appearance do not establish material identity or justify performance claims.", "layers": [ { "id": "material-identification", "name": "Material identification", "description": "Separate fired vitreous enamel from precursors and visually similar finishes.", "findings": [ { "id": "vitreous-identity-evidence", "name": "Vitreous identity evidence", "description": "Record the evidence for identifying the coating and any unresolved alternative identification.", "questions": [ { "text": "What manufacturing record or material examination establishes a fired vitreous coating rather than an organic finish?", "kind": "definition", "id": "vitreous-identity-evidence-q01" }, { "text": "Is the subject an enamel preparation, an applied unfired layer or a fired coating, and what confirms that stage?", "kind": "boundary", "id": "vitreous-identity-evidence-q02" } ] } ] }, { "id": "formulation-traceability", "name": "Formulation traceability", "description": "Connect the observed enamel to a recipe, product or analysed composition.", "findings": [ { "id": "composition-and-variation", "name": "Composition and variation", "description": "Record formulation evidence without inferring chemistry from colour or product family alone.", "questions": [ { "text": "Which formulation, frit batch, pigments and additions are documented for this enamel?", "kind": "provenance", "id": "composition-and-variation-q01" }, { "text": "Which composition measurements exist, and do they describe the supplied frit, prepared mixture or fired coating?", "kind": "measurement", "id": "composition-and-variation-q02" } ] } ] } ] }, { "id": "substrate-and-coat-system", "name": "Substrate and coat system", "description": "Represent the enamel's supporting material, interfaces and coat arrangement.", "rationale": "Judging enamel requires knowing what supports it and which part of the coating system is being examined.", "layers": [ { "id": "substrate-interface", "name": "Substrate interface", "description": "Capture substrate identity and evidence relevant to the enamel bond.", "findings": [ { "id": "substrate-compatibility", "name": "Substrate compatibility", "description": "Record the material pairing and interface preparation as evidence for compatibility.", "questions": [ { "text": "What substrate material or alloy, surface preparation and intermediate treatment lie beneath the enamel?", "kind": "provenance", "id": "substrate-compatibility-q01" }, { "text": "What test or production evidence supports adherence and thermal compatibility for this particular enamel-substrate pairing?", "kind": "measurement", "id": "substrate-compatibility-q02" } ] } ] }, { "id": "coat-architecture", "name": "Coat architecture", "description": "Locate enamel coats, their functions and their coverage on the supporting object.", "findings": [ { "id": "coat-sequence-and-coverage", "name": "Coat sequence and coverage", "description": "Describe the actual coat build, including edges, openings and any reverse-side enamel.", "questions": [ { "text": "Which coats occur in what order, and what role does each serve?", "kind": "definition", "id": "coat-sequence-and-coverage-q01" }, { "text": "What thickness and coverage are measured across faces, edges and openings, and which uncoated areas are intentional?", "kind": "measurement", "id": "coat-sequence-and-coverage-q02" } ] } ] } ] }, { "id": "application-and-firing", "name": "Application and firing", "description": "Record how the enamel was deposited and thermally formed.", "rationale": "Formulation alone cannot explain a coating without its application and firing history.", "layers": [ { "id": "deposition-history", "name": "Deposition history", "description": "Capture the preparation and placement of enamel before firing.", "findings": [ { "id": "applied-enamel-condition", "name": "Applied enamel condition", "description": "Identify application variables available for interpreting the finished coating.", "questions": [ { "text": "Was the enamel applied as powder, slip or another preparation, by which method and in which sequence?", "kind": "provenance", "id": "applied-enamel-condition-q01" }, { "text": "Which relevant preparation, deposition and drying measurements were recorded for this batch?", "kind": "measurement", "id": "applied-enamel-condition-q02" } ] } ] }, { "id": "thermal-history", "name": "Thermal history", "description": "Separate prescribed firing conditions from the thermal exposure actually experienced.", "findings": [ { "id": "firing-and-refiring-evidence", "name": "Firing and refiring evidence", "description": "Record firing cycles and the evidence used to accept the resulting coating.", "questions": [ { "text": "What heating, hold and cooling history, atmosphere and firing count are known, and were temperatures measured on the object or only in the furnace?", "kind": "provenance", "id": "firing-and-refiring-evidence-q01" }, { "text": "What evidence supports accepting the fired result or permitting an additional firing for this formulation and substrate?", "kind": "action", "id": "firing-and-refiring-evidence-q02" } ] } ] } ] }, { "id": "coating-condition-and-defects", "name": "Coating condition and defects", "description": "Describe finish, discontinuities and interface deterioration without confusing observations with causes.", "rationale": "An enamel surface can meet an appearance requirement while failing a continuity or adherence requirement.", "layers": [ { "id": "surface-and-continuity", "name": "Surface and continuity", "description": "Map visible finish and detected breaks in the coating.", "findings": [ { "id": "finish-and-discontinuity-map", "name": "Finish and discontinuity map", "description": "Record optical variation and defects with locations, dimensions and inspection coverage.", "questions": [ { "text": "Where are colour or gloss changes, roughness, pores, cracks, chips or blisters, and which features depart from the intended finish?", "kind": "measurement", "id": "finish-and-discontinuity-map-q01" }, { "text": "Which method assessed coating continuity, with what settings, detection limits and evidence of exposed substrate?", "kind": "measurement", "id": "finish-and-discontinuity-map-q02" } ] } ] }, { "id": "bond-and-deterioration", "name": "Bond and deterioration", "description": "Assess attachment and changes over time while retaining uncertainty about failure mechanisms.", "findings": [ { "id": "detachment-and-cause-confidence", "name": "Detachment and cause confidence", "description": "Separate measured loss of adherence or substrate corrosion from proposed explanations.", "questions": [ { "text": "What evidence establishes detachment, under-coating corrosion or progression since the previous inspection?", "kind": "measurement", "id": "detachment-and-cause-confidence-q01" }, { "text": "What evidence distinguishes impact, thermal mismatch, firing defects or substrate-related mechanisms, and which causes remain unresolved?", "kind": "provenance", "id": "detachment-and-cause-confidence-q02" } ] } ] } ] }, { "id": "service-and-intervention-decisions", "name": "Service and intervention decisions", "description": "Connect intended exposure and current coating condition to justified actions.", "rationale": "Permission to use or intervene must follow evidence for the actual enamel system and application.", "layers": [ { "id": "exposure-qualification", "name": "Exposure qualification", "description": "Record the conditions and criteria under which performance has been demonstrated.", "findings": [ { "id": "application-specific-suitability", "name": "Application-specific suitability", "description": "Keep chemical, thermal, mechanical and contact-related suitability claims tied to their supporting evidence.", "questions": [ { "text": "Which media, concentrations, temperatures, exposure durations and thermal or mechanical cycles must this enamel withstand?", "kind": "boundary", "id": "application-specific-suitability-q01" }, { "text": "Which relevant tests or service records support those conditions, including release or migration testing where the intended contact requires it?", "kind": "measurement", "id": "application-specific-suitability-q02" } ] } ] }, { "id": "cleaning-repair-and-disposition", "name": "Cleaning, repair and disposition", "description": "Determine feasible interventions and the evidence needed before returning the coating to service.", "findings": [ { "id": "supported-intervention", "name": "Supported intervention", "description": "Record action choices with compatibility evidence and post-intervention acceptance requirements.", "questions": [ { "text": "Which cleaning, repair, refiring or replacement action is supported by the formulation, substrate, damage and object constraints?", "kind": "action", "id": "supported-intervention-q01" }, { "text": "After intervention, what inspection or qualification is required, and does any patch introduce a material other than vitreous enamel?", "kind": "action", "id": "supported-intervention-q02" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Ground-coat plus cover-coat systems on steel (adherence coat, then white or coloured finish)", "Direct-on white enamel on decarburised enamelling steel", "Cast-iron sanitary and cookware enamel", "Low-firing aluminium enamel", "Thick chemical-process glass lining on steel vessels", "Architectural vitreous-enamel panels and signage", "Artistic metal enamel (cloisonné, champlevé, plique-à-jour, painted/Limoges)", "Appliance and culinary finish coats (ovens, cookware, glass-lined water heaters)" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of vitreous enamel this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "scheme": "Wikidata", "value_or_pattern": "Q1046819", "note": "Item commonly sitelinked from the English Wikipedia article \"Vitreous enamel\" (coating of fused glass on a substrate)." }, { "scheme": "CAS", "value_or_pattern": "65997-18-4", "note": "Inventory listing \"Frits, chemicals\"; covers enamel and glaze glass frits, not unique to metal-coating enamel." }, { "scheme": "EC/EINECS", "value_or_pattern": "266-047-6", "note": "Same \"Frits, chemicals\" entry as the CAS listing." }, { "scheme": "HS", "value_or_pattern": "3207.20", "note": "Vitrifiable enamels and glazes, engobes and similar preparations (the frit/slip as a product, not the coated article)." }, { "scheme": "ISO naming", "value_or_pattern": "ISO 287xx / \"vitreous and porcelain enamels\"", "note": "ISO's controlled name for the fused-glass-on-metal coating family." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of vitreous enamel this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "ISO 28706 series (ISO) - chemical corrosion resistance of vitreous and porcelain enamels", "ISO 28721 series (ISO) - glass-lined apparatus for process plants", "ISO 4531 (ISO) - release from enamelled articles in contact with food", "ISO 2746 (ISO) - high-voltage test for porosity/discontinuities in enamelled articles", "ISO 28764 (ISO) - production of specimens for testing vitreous and porcelain enamels", "EN 10209 (CEN) - cold-rolled low-carbon steel for vitreous enamelling", "EN 14431 (CEN) - enamel coatings on steel panels for architecture", "ASTM porcelain-enamel test methods, e.g. C282, C285, C614, C743 (ASTM International)", "Regulation (EC) No 1935/2004 (EU) - materials and articles intended to come into contact with food", "REACH Annex XVII (EU) - restrictions relevant to lead, cadmium and some other substances used in historic or speciality enamel formulations", "Porcelain Enamel Institute (PEI, USA) and Institute of Vitreous Enamellers (IVE, UK) - industry test and practice documents" ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of vitreous enamel this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Fused coating on steel and cast-iron cookware (Dutch ovens, roasting pans, kettles) and on oven cavities and cooktops.", "Sanitary cast-iron baths, sinks and troughs; glass-lined domestic hot-water cylinders.", "Architectural cladding, tunnel and station linings, and vitreous-enamel signs and house numbers.", "Glass-lined steel reactors, columns and storage tanks in chemical and pharmaceutical plants.", "Jewellery and objets d'art using cloisonné, champlevé, plique-à-jour and painted enamel on copper, silver or gold.", "Washing-machine drums, dishwasher interiors, silos, animal drinkers, and some exhaust/silencer coatings." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of vitreous enamel this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "quantity": "Firing temperature (steel enamel)", "typical_range": "780-850", "unit": "°C" }, { "quantity": "Firing temperature (aluminium enamel)", "typical_range": "520-580", "unit": "°C" }, { "quantity": "Fired coating thickness (appliance/cover-coat)", "typical_range": "100-250", "unit": "µm" }, { "quantity": "Fired lining thickness (chemical glass lining)", "typical_range": "1.0-2.2", "unit": "mm" }, { "quantity": "Coefficient of thermal expansion of the enamel (matched slightly below steel, coating in compression)", "typical_range": "8-12", "unit": "10⁻⁶ K⁻¹" }, { "quantity": "Fired enamel bulk density", "typical_range": "2.3-2.6", "unit": "g·cm⁻³" }, { "quantity": "High-voltage porosity / continuity test (finished ware)", "typical_range": "typically a few kV, method-dependent", "unit": "kV" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of vitreous enamel this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Brittle chipping and spalling from impact or flexure of the metal.", "Fishscaling: delayed flake-off driven by hydrogen dissolved in the steel and precipitated at the enamel interface.", "Crazing or delayed crazing from thermal-expansion mismatch or over-thick coats.", "Pinholes, boiling defects, copperheading and poor ground-coat adherence.", "Chemical etching by acids (citric, phosphoric) and attack by hot alkaline detergents or wet cement.", "Thermal-shock cracking on sudden quench or burner hot-spots.", "Lead and cadmium release from historic or poorly formulated decorative and food-contact enamels.", "Occupational hazards from silica-bearing frit dust and from cobalt, nickel, cadmium and other metal-oxide pigments.", "In glass-lined plant: lining cracks that expose steel, causing corrosion and product contamination." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of vitreous enamel this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "North American industry almost always says \"porcelain enamel\"; ISO, UK and much of Europe say \"vitreous enamel\" for the same fused-glass-on-metal coating.", "\"Enamel\" in US trade also means organic gloss paint and, in dentistry, tooth enamel; those senses are not this material.", "France: émail, with Limoges painted enamel as a distinct craft; Japan: shippō (cloisonné); China: jingtailan cloisonné; Russia: Rostov finift.", "Chemical plant practice: \"glass-lined steel\" (US) versus \"enamelled / glass-enamelled apparatus\" and German Email/Emaillierung.", "Spelling: enamelled (UK) vs enameled (US)." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of vitreous enamel this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "name": "Ceramic glaze", "difference": "Glaze is a glassy coating on a ceramic body; vitreous enamel is fused to metal. Section or a magnet/conductivity check of the substrate separates them." }, { "name": "Organic \"enamel\" paint or powder coating", "difference": "Organic finishes cure at roughly 150-200 °C and swell or burn; vitreous enamel is an inorganic silicate glass fired near 800 °C (steel) and is solvent-inert." }, { "name": "Vitreous china / porcelain sanitaryware", "difference": "A bulk ceramic article, not a thin glass coat on metal; a cut edge or radiograph shows a ceramic body rather than steel or cast iron." }, { "name": "Tooth enamel", "difference": "Biological hydroxyapatite on teeth, not a fused glass coating; composition (Ca-phosphate vs alkali borosilicate glass) and context separate them." }, { "name": "Magnet-wire \"enamel\"", "difference": "Polymer electrical insulation on copper wire, not fused glass; stripped with solvents or burn-off far below glass-firing temperatures." }, { "name": "Anodic oxide on aluminium", "difference": "A conversion layer of alumina grown from the metal, typically much thinner than enamel and without a fused frit microstructure." }, { "name": "On-glaze ceramic enamel (overglaze colour)", "difference": "A low-firing glass colour on already glazed pottery or porcelain, not a coating bonded to metal." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of vitreous enamel this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does the registry intend vitreous enamel to include fired enamels on glass and ceramic, or primarily enamel on metal, and how should overlapping glaze terminology be linked?", "Should commercially supplied frits and slips be represented as states of this thing or as neighbouring materials related to the finished enamel?", "Which inspection methods and acceptance criteria apply to each intended industrial, domestic or decorative use, particularly for continuity and adherence?", "What formulation-specific evidence is available for chemical resistance, thermal cycling and any required substance-release limits?", "Under what conditions can repair or refiring restore the required performance, and when must the result remain qualified only for restricted use?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 18, "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 vitreous enamel, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise vitreous enamel, assess its coating and interface condition, and decide which fabrication, use, inspection or repair actions the available evidence supports.", "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: vernis brun, Finift.", "2 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 61 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 vitreous enamel, 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": [ "vernis brun", "Finift" ] } ], "standing": "Described in 61 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 2 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 vitreous enamel from another, and a vitreous enamel 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 vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a vitreous enamel 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 vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a vitreous enamel performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a vitreous enamel at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 vitreous enamel is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a vitreous enamel, 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 vitreous enamel, 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 vitreous enamel 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 } } } }