{ "model": { "rank": 3645, "code": "thing-q171888", "model_id": "vr.tr.eraser", "name": "eraser", "purpose": "Enable an agent to recognise a physical eraser, assess its suitability and condition, and decide how to remove a mark without unacceptable damage to the marked 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/q171888/", "tier": 2, "score": 83, "payload": { "layer": "wikidata", "aliases": [ "track rubber", "keshi", "kneaded eraser", "chalkboard eraser", "Seed Radar" ], "aliasCount": 5, "merged": 5, "knownIn": 83, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.eraser", "source": { "dataset": "wikidata", "item": "Q171888", "url": "https://www.wikidata.org/wiki/Q171888", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T14:46:27Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 19.8, "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: 01a07c54-a9e7-76a0-955a-81fd7c2737d7\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: eraser\nSense to describe: (none recorded)\nDomain code: PHY.OBJ\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 004: 1001 register", "usd": 0, "recall": true }, "codex": { "seconds": 69.9, "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: 01a07c54-a9d5-7da1-8fe2-93c647404b5f\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: eraser\nRegistry id: vr.tr.eraser\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext fo" } } }, "metaModel": { "id": "THING-Q171888", "registryId": "vr.tr.eraser", "name": "eraser", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q171888/", "model": { "registry_id": "vr.tr.eraser", "name": "eraser", "purpose": "Enable an agent to recognise a physical eraser, assess its suitability and condition, and decide how to remove a mark without unacceptable damage to the marked surface.", "definition": "An eraser is a writing or drawing tool whose working material removes deposited marks, especially pencil graphite, from a surface through rubbing or dabbing.", "scope_statement": "This model covers the kind of physical tool used to remove drawing or writing marks through contact, including standalone erasers and erasing elements mounted in holders or on pencils; compatibility with particular marks and surfaces must be recorded rather than assumed.", "in_scope": [ "Eraser forms, working materials and contact geometry", "Compatibility between eraser, marking medium and marked surface", "Mark removal, smearing, residue and surface damage", "Manual or powered contact and replaceable erasing elements", "Wear, contamination, storage and readiness for further use" ], "out_of_scope": [ "Software eraser tools and digital deletion", "Correction fluids and tapes that cover marks", "General cleaning agents, solvents and stain removers", "The complete pencil or powered holder that carries an erasing element", "Manufacturing recipes and individual commercial product catalogues" ], "distinguishing_features": [ "Its intended working action removes or lifts an existing drawing or writing mark, rather than depositing a new mark.", "It acts through a physical contact face; a digital eraser has no such face.", "It reduces the original mark rather than merely concealing it beneath an opaque coating.", "It is selected for a marking-medium and surface pairing, rather than treated as a universal cleaner.", "A pencil-mounted eraser is the erasing element, distinguishable from the pencil body and its mark-making core." ], "characteristics": [ { "name": "Intended marking medium", "kind": "category", "unit_or_values": "Graphite, charcoal, coloured pencil, ink, dry-erase marker, other specified medium, unknown; multiple values allowed", "why_it_matters": "Identifies the marks for which suitability needs to be established." }, { "name": "Surface compatibility", "kind": "relation", "unit_or_values": "Links to surface types with supported, conditional, unsuitable or untested compatibility", "why_it_matters": "An eraser that removes a mark may still damage its supporting surface." }, { "name": "Working material", "kind": "category", "unit_or_values": "Reported material or formulation class, with evidence and unknown permitted", "why_it_matters": "Supports interpretation of contact behaviour, care requirements and material restrictions without guessing composition from appearance." }, { "name": "Physical form", "kind": "category", "unit_or_values": "Block, mouldable mass, pencil-mounted tip, holder insert, board pad, other specified form", "why_it_matters": "Determines handling, access to small marks and whether a holder is needed." }, { "name": "Working-face dimensions", "kind": "measurement", "unit_or_values": "Width and length or diameter in mm, with working-face shape", "why_it_matters": "Helps match the contact area to the mark while protecting adjacent content." }, { "name": "Contact method", "kind": "category", "unit_or_values": "Rubbing, dabbing or lifting, wiping, powered contact, other specified method", "why_it_matters": "Records how the erasing element is intended to act on the mark." }, { "name": "Working-face condition", "kind": "state", "unit_or_values": "Clean, loaded with marking material, glazed, hardened, cracked, crumbling, other observed condition, unknown; multiple values allowed", "why_it_matters": "Supports decisions about cleaning, exposing fresh material, testing or replacement." }, { "name": "Remaining usable material", "kind": "measurement", "unit_or_values": "Usable projection or dimensions in mm, or usable mass in g, according to form", "why_it_matters": "Helps determine whether erasing can continue without holder contact or loss of control." }, { "name": "Observed erasing outcome", "kind": "state", "unit_or_values": "Removal adequacy, smearing, residue and surface alteration, each recorded for a specified mark, surface and contact method", "why_it_matters": "Prevents a successful test under one condition from becoming an unsupported universal performance claim." } ], "affordances": [ "Select an eraser for a specified marking medium, surface and required precision.", "Test a small permitted area and inspect removal, residue and surface change.", "Apply a compatible rubbing, lifting or wiping action while protecting adjacent marks.", "Clean or expose a fresh working face when the eraser form permits it.", "Reshape a mouldable eraser or replace a compatible insert when supported.", "Stop use or replace the erasing element when it smears, damages the surface or lacks usable material." ] }, "sources": [], "structure": { "bundles": [ { "id": "eraser-identity-and-boundary", "name": "Eraser identity and boundary", "description": "Establishes which physical erasing forms the kind includes and separates the erasing element from neighbouring tools.", "rationale": "The name can refer to a standalone block, a mounted element or a board-wiping tool, which need explicit boundaries.", "layers": [ { "id": "physical-erasing-function", "name": "Physical erasing function", "description": "Defines the mark-removal purpose that makes an object an eraser.", "findings": [ { "id": "removal-versus-covering", "name": "Removal versus covering", "description": "Recognition should establish whether the working face removes marking material rather than applying a concealing layer.", "questions": [ { "text": "What physical action qualifies as erasing within this registry entry?", "kind": "definition", "id": "removal-versus-covering-q01" }, { "text": "Where is the boundary between an eraser, a correction product and a general cleaning pad?", "kind": "boundary", "id": "removal-versus-covering-q02" } ] } ] }, { "id": "eraser-form-and-host", "name": "Eraser form and host", "description": "Separates the consumable erasing element from any pencil, sleeve or powered holder.", "findings": [ { "id": "standalone-and-mounted-elements", "name": "Standalone and mounted elements", "description": "The model should describe erasing form and host dependence without treating a product model or individual unit as the registered kind.", "questions": [ { "text": "Which standalone, pencil-mounted, insert and board-pad forms belong under this entry?", "kind": "boundary", "id": "standalone-and-mounted-elements-q01" }, { "text": "For a mounted eraser, which fit and retention requirements belong to the erasing element and which belong to its holder?", "kind": "boundary", "id": "standalone-and-mounted-elements-q02" } ] } ] } ] }, { "id": "mark-and-surface-compatibility", "name": "Mark and surface compatibility", "description": "Organises suitability around the combination of marking medium, substrate and eraser.", "rationale": "Successful mark removal alone does not establish that an eraser is suitable for the surface carrying the mark.", "layers": [ { "id": "marking-medium-response", "name": "Marking medium response", "description": "Records which marks an eraser is intended or demonstrated to remove.", "findings": [ { "id": "supported-mark-removal", "name": "Supported mark removal", "description": "Suitability claims need a named marking medium and evidence that distinguishes intended use from observed performance.", "questions": [ { "text": "Which marking media does the maker identify as suitable, and where is that claim documented?", "kind": "provenance", "id": "supported-mark-removal-q01" }, { "text": "How much visible mark remains after a stated contact method on a specified surface?", "kind": "measurement", "id": "supported-mark-removal-q02" } ] } ] }, { "id": "surface-preservation", "name": "Surface preservation", "description": "Considers the surface changes that can make otherwise effective erasing unacceptable.", "findings": [ { "id": "removal-damage-tradeoff", "name": "Removal and surface damage", "description": "Assessment should inspect surface abrasion, fibre disturbance, coating change and unintended removal of adjacent content.", "questions": [ { "text": "What visible or measurable surface changes occur during a representative erasing trial?", "kind": "measurement", "id": "removal-damage-tradeoff-q01" }, { "text": "What level of surface change requires stopping for the intended drawing, document or board?", "kind": "action", "id": "removal-damage-tradeoff-q02" } ] } ] } ] }, { "id": "working-face-and-erasing-action", "name": "Working face and erasing action", "description": "Connects material, contact geometry and handling to controlled removal.", "rationale": "An agent needs to choose how and where to make contact, not merely identify an object as an eraser.", "layers": [ { "id": "material-and-face-geometry", "name": "Material and face geometry", "description": "Describes the erasing material and the available contact shape without inferring composition from colour.", "findings": [ { "id": "contact-face-selection", "name": "Contact face selection", "description": "A usable edge, point or broad face should be matched to the mark area and the clearance around content that must remain.", "questions": [ { "text": "What evidence identifies the working material and whether it can be reshaped?", "kind": "provenance", "id": "contact-face-selection-q01" }, { "text": "What are the dimensions of the usable contact face and the clearance to protected marks?", "kind": "measurement", "id": "contact-face-selection-q02" } ] } ] }, { "id": "contact-control", "name": "Contact control", "description": "Determines the appropriate erasing motion and any dependence on a holder.", "findings": [ { "id": "controlled-erasing-method", "name": "Controlled erasing method", "description": "The selected contact method should reflect the eraser form, marking medium and surface, with inspection between applications.", "questions": [ { "text": "Should this eraser be rubbed, dabbed, wiped or operated through a powered holder for the stated task?", "kind": "action", "id": "controlled-erasing-method-q01" }, { "text": "What observations should trigger lighter contact, a different face or an immediate stop?", "kind": "action", "id": "controlled-erasing-method-q02" } ] } ] } ] }, { "id": "wear-residue-and-reuse", "name": "Wear, residue and reuse", "description": "Tracks whether the eraser remains usable and how erasing debris or transferred marking material should be handled.", "rationale": "A worn or contaminated working face can change the outcome even when the eraser type is appropriate.", "layers": [ { "id": "loaded-face-and-debris", "name": "Loaded face and debris", "description": "Distinguishes contamination retained on the working face from residue left on the erased surface.", "findings": [ { "id": "clean-face-restoration", "name": "Clean face restoration", "description": "Cleaning, kneading or exposing fresh material should be considered only where supported by the eraser's form and care guidance.", "questions": [ { "text": "Does the working face transfer previously removed marking material during a permitted test?", "kind": "measurement", "id": "clean-face-restoration-q01" }, { "text": "Which face-cleaning and debris-removal methods are appropriate without spreading marks or damaging the surface?", "kind": "action", "id": "clean-face-restoration-q02" } ] } ] }, { "id": "remaining-life-and-storage", "name": "Remaining life and storage", "description": "Assesses usable material, physical deterioration and conditions for retaining an eraser between uses.", "findings": [ { "id": "reuse-or-replace", "name": "Reuse or replace", "description": "Replacement decisions should consider exposed usable material, retention in a holder and observed changes in erasing behaviour.", "questions": [ { "text": "How much usable erasing material remains before the holder or another non-erasing component could contact the surface?", "kind": "measurement", "id": "reuse-or-replace-q01" }, { "text": "Which observed condition changes or documented storage restrictions require replacement or different storage?", "kind": "action", "id": "reuse-or-replace-q02" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "No sense was recorded; the interpretation here is the physical stationery or drawing tool, primarily for pencil marks.", "Material categories and mechanisms overlap: powered erasers use replaceable erasing tips, while kneaded erasers are commonly used by dabbing.", "Composition, surface compatibility and erasing performance vary by product; no universal dimensions or applicable standards are asserted." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of eraser 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": [ "Rubber eraser", "Plastic or vinyl eraser", "Kneaded eraser", "Art gum eraser", "Abrasive ink eraser", "Powered eraser" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of eraser 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": [ "Correcting pencil writing on paper.", "Removing construction lines from drawings.", "Lifting graphite or charcoal to create highlights and adjust tone.", "Selectively erasing small areas with a fine tip or an erasing shield.", "Removing some ink marks by abrasion, with possible damage to the paper." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of eraser 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": [ "Accumulated graphite or other contamination can smear or redeposit marks.", "Excessive pressure or abrasive formulations can roughen, thin or tear paper.", "Aging can cause some formulations to harden, crack or lose effectiveness.", "Some plasticized erasers can soften or mark susceptible plastics during prolonged contact.", "Small erasers and detached pieces can present a choking hazard." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of eraser 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": [ "The stationery item is commonly called a rubber in British English and an eraser in American English." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of eraser 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": "Pencil", "difference": "A pencil deposits a mark; an eraser removes it, even when both are combined in one implement." }, { "name": "Correction fluid", "difference": "Correction fluid covers a mark with an opaque coating instead of removing the deposited material." }, { "name": "Erasing shield", "difference": "An erasing shield masks surrounding areas and guides erasure; it does not itself remove marks." }, { "name": "Board eraser", "difference": "A board eraser wipes chalk or dry-erase marker from a reusable board; this description primarily covers stationery and artists' erasers used on paper." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of eraser this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does the source registry intend eraser to include chalkboard and dry-erase board tools, or only drawing and writing erasers used on paper?", "Which material classes and removal mechanisms can be substantiated for the included forms without relying on appearance or marketing terminology?", "Which repeatable test methods can compare removal, smearing, residue and surface damage across specified mark-and-surface pairings?", "Which standards, issuing bodies and certification requirements, if any, apply to particular eraser forms and intended markets?", "What evidence supports form-specific cleaning, storage and end-of-use criteria, especially for mouldable and mounted erasers?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 14, "questions": 22 } }, "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 eraser, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an agent to recognise a physical eraser, assess its suitability and condition, and decide how to remove a mark without unacceptable damage to the marked 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: track rubber, keshi, kneaded eraser, chalkboard eraser, Seed Radar.", "5 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 83 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 eraser, 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": [ "track rubber", "keshi", "kneaded eraser", "chalkboard eraser", "Seed Radar" ] } ], "standing": "Described in 83 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 5 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 eraser from another, and a eraser 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 eraser, 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 eraser, 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 eraser 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 eraser, 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 eraser, 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 eraser 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 eraser 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 eraser, 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 eraser, 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 eraser 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 eraser from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a eraser, 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 eraser, 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 eraser 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 eraser 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 eraser, 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 eraser, 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 eraser 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 eraser is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a eraser, 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 eraser, 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 eraser 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 eraser is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a eraser, 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 eraser, 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 eraser 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 eraser 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 eraser is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a eraser, 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 eraser, 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 eraser 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 eraser 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 eraser, 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 eraser, 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 eraser 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 eraser 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 eraser between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a eraser, 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 eraser, 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 eraser 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 eraser, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a eraser 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 eraser, 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 eraser, 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 eraser 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 eraser 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 eraser 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 eraser, 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 eraser 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 eraser 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 eraser 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 eraser 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 eraser 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 eraser, 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 eraser 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 eraser and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a eraser, 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 eraser, 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 eraser 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 eraser is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a eraser, 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 eraser, 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 eraser 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 } } } }