{ "model": { "rank": 3061, "code": "thing-q131408", "model_id": "vr.tr.wedge", "name": "wedge", "purpose": "Enable an AI agent to recognise a physical wedge, assess its fitness for a specific contact arrangement, and decide whether and how it may be inserted, loaded, adjusted or removed.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.OBJ", "industry": "", "version": "", "url": "/models/thing/q131408/", "tier": 2, "score": 92, "payload": { "layer": "wikidata", "aliases": [ "wheel chock" ], "aliasCount": 1, "merged": 1, "knownIn": 92, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q131408", "url": "https://www.wikidata.org/wiki/Q131408", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T14:32:26Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.01239572, "turns": 1, "seconds": 154.6, "error": null }, "codex": { "seconds": 74.9, "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: 01a07c44-76fa-7253-a67e-5a99dcb276a7\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: wedge\nRegistry id: vr.tr.wedge\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy model" } } }, "metaModel": { "id": "THING-Q131408", "registryId": "vr.tr.wedge", "name": "wedge", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q131408/", "model": { "registry_id": "vr.tr.wedge", "name": "wedge", "purpose": "Enable an AI agent to recognise a physical wedge, assess its fitness for a specific contact arrangement, and decide whether and how it may be inserted, loaded, adjusted or removed.", "definition": "A wedge is a rigid tapered body - classically a triangular prism, equivalently two inclined planes joined at an apex - that converts a force driven toward the thin end into larger normal forces on its faces, and is counted among the classical simple machines.", "scope_statement": "This draft models a physical object whose taper is used to separate, split, lift, tighten, locate or restrain other objects, including its geometry, working interfaces, condition and application limits; the intended registry meaning remains to be confirmed.", "in_scope": [ "Functional taper, entry edge or tip, bearing faces and driving or extraction features", "Material and construction as they affect the wedge's working behaviour", "Contact arrangement, insertion direction and available engagement", "Evidence for load capacity, displacement, retention and removal limits", "Wear, damage and application-specific readiness" ], "out_of_scope": [ "The complete machine, joint or support assembly containing the wedge", "The full material behaviour and damage state of the object being split or restrained", "Hammers, presses and other devices that drive the wedge", "Screws, cams and levers whose primary working mechanism is not wedge insertion", "Objects called wedges solely because of their appearance, including food portions and diagram sectors" ], "distinguishing_features": [ "Identify a working region whose thickness increases along an intended insertion direction, rather than relying on a triangular silhouette alone.", "Establish whether advancing the taper between contacts is intended to change separation or contact force; an inclined surface used only as a travel path is more plausibly a ramp.", "Check whether restraint or adjustment depends on the taper; a constant-thickness spacer does not meet this draft's wedge criterion.", "Determine whether the taper is a separately recognised object or only the working geometry of a blade, chisel or other tool; registry ownership of these cases remains unresolved." ], "characteristics": [ { "name": "Working role", "kind": "category", "unit_or_values": "splitting | separating | lifting | tightening | locating | restraining | other | unknown", "why_it_matters": "Determines which outcomes, contact conditions and failure modes need assessment." }, { "name": "Taper profile", "kind": "category", "unit_or_values": "single-face taper | opposed-face taper | curved taper | compound taper | other | unknown", "why_it_matters": "Identifies how thickness changes through insertion and which surfaces can carry load." }, { "name": "Working taper angle", "kind": "measurement", "unit_or_values": "degrees, with reference faces and local or included angle identified", "why_it_matters": "Supports assessment of displacement, driving demand and possible back-driving." }, { "name": "Thickness along insertion path", "kind": "measurement", "unit_or_values": "mm at stated distances from the entry edge or tip", "why_it_matters": "Establishes entry clearance and available separation over usable travel." }, { "name": "Effective bearing width", "kind": "measurement", "unit_or_values": "mm over the engaged working region", "why_it_matters": "Helps assess contact concentration and fit within the receiving space." }, { "name": "Material and construction", "kind": "category", "unit_or_values": "documented material, treatment, grain or reinforcement orientation, and construction type; unknown where unverified", "why_it_matters": "Informs susceptibility to deformation, fracture, crushing or surface damage." }, { "name": "Contact arrangement", "kind": "relation", "unit_or_values": "working face to contacted object, with contact location and intended load direction", "why_it_matters": "Connects the wedge's geometry to its actual mechanical role." }, { "name": "Insertion depth", "kind": "measurement", "unit_or_values": "mm from an identified entry datum", "why_it_matters": "Shows current engagement and remaining usable adjustment." }, { "name": "Retention condition", "kind": "state", "unit_or_values": "externally retained | friction-dependent | observed migration | unassessed", "why_it_matters": "Determines whether the wedge may move or be expelled under the present conditions." }, { "name": "Application limit evidence", "kind": "relation", "unit_or_values": "manufacturer instruction, test result or engineering assessment tied to a stated contact and loading arrangement", "why_it_matters": "Prevents a capacity established for one arrangement from being treated as universal." }, { "name": "Working-surface and driving-end condition", "kind": "state", "unit_or_values": "observed wear, rounding, burrs, mushrooming, cracks, crushing, deformation or contamination, with location and extent", "why_it_matters": "Supports decisions about engagement, driving, withdrawal and retirement." } ], "affordances": [ "Match the wedge's entry thickness, taper and bearing width to a proposed gap and working role.", "Orient and insert the wedge using an evidenced driving method and travel limit.", "Adjust separation, preload or restraint by changing engagement within established limits.", "Assess whether retention or a secondary restraint is required for the proposed loading.", "Inspect working faces and driving features to decide whether continued use is supported.", "Plan unloading and withdrawal while accounting for supported objects and stored force." ] }, "sources": [ { "id": "wiki-wedge-mechanical-device", "title": "Wedge (mechanical device) - Wikipedia, Wikimedia Foundation", "url": "https://en.wikipedia.org/wiki/Wedge_(mechanical_device)", "what_it_supports": "Classification as a simple machine; splitting, lifting, holding and cutting uses; relation to the inclined plane.", "url_status": "live" }, { "id": "osha-29cfr-1926-301", "title": "29 CFR 1926.301 Hand tools - Occupational Safety and Health Administration / U.S. eCFR", "url": "https://www.ecfr.gov/current/title-29/section-1926.301", "what_it_supports": "Struck wedges must be kept free of mushroomed heads; construction-site impact-tool hazard.", "url_status": "live" }, { "id": "iso-2491", "title": "ISO 2491, Thin taper keys with or without gib head and their corresponding keyways - International Organization for Standardization", "url": "", "what_it_supports": "Standardized shaft keys that work as fastening wedges; dimensions and keyway geometry." }, { "id": "britannica-wedge", "title": "wedge (mechanics) - Encyclopædia Britannica", "url": "", "what_it_supports": "Simple-machine definition and the force-multiplying action of a taper." } ], "structure": { "bundles": [ { "id": "working-taper", "name": "Working taper", "description": "The geometry that makes this object function as a wedge and bounds its useful engagement.", "rationale": "A wedge must be recognised through its working taper, and its fit cannot be judged from overall dimensions alone.", "layers": [ { "id": "taper-identity", "name": "Taper identity", "description": "Identify the active taper and its intended mechanical role.", "findings": [ { "id": "active-wedge-region", "name": "Active wedge region", "description": "Record the region whose increasing thickness is intended to create separation, contact force or restraint.", "questions": [ { "text": "Which faces form the working taper, and in which direction does effective thickness increase?", "kind": "definition", "id": "active-wedge-region-q01" }, { "text": "Does the object's intended function depend on advancing this taper, or is its wedge-like shape incidental?", "kind": "boundary", "id": "active-wedge-region-q02" } ] } ] }, { "id": "entry-and-travel", "name": "Entry and travel", "description": "Establish the dimensions controlling initial entry and useful insertion.", "findings": [ { "id": "usable-taper-envelope", "name": "Usable taper envelope", "description": "Record entry thickness, thickness profile, bearing width and the portion of travel available for working contact.", "questions": [ { "text": "What are the entry thickness, taper angle or profile, and effective width at the intended engagement?", "kind": "measurement", "id": "usable-taper-envelope-q01" }, { "text": "Where must insertion stop because the taper ends, a shoulder interferes or the receiving space runs out?", "kind": "boundary", "id": "usable-taper-envelope-q02" } ] } ] } ] }, { "id": "contact-and-driving", "name": "Contact and driving", "description": "How the wedge meets the receiving objects and how insertion or extraction force reaches it.", "rationale": "The same wedge geometry can behave differently when contact alignment, support or driving method changes.", "layers": [ { "id": "bearing-arrangement", "name": "Bearing arrangement", "description": "Identify the working contacts and their alignment with the intended action.", "findings": [ { "id": "engaged-contact-pair", "name": "Engaged contact pair", "description": "Record the objects bearing on the wedge, the engaged face regions and any unintended edge contact.", "questions": [ { "text": "Which objects contact each working face, and where are the actual bearing regions?", "kind": "measurement", "id": "engaged-contact-pair-q01" }, { "text": "Does the proposed orientation produce the intended separation or restraint without unsupported twisting or edge loading?", "kind": "action", "id": "engaged-contact-pair-q02" } ] } ] }, { "id": "force-application", "name": "Force application", "description": "Identify permitted driving and extraction interfaces.", "findings": [ { "id": "driving-and-withdrawal-features", "name": "Driving and withdrawal features", "description": "Record how force may be applied to advance or retrieve this wedge, including access constraints.", "questions": [ { "text": "What instructions or design evidence establish whether the wedge may be struck, pressed, hand-inserted or drawn by a mechanism?", "kind": "provenance", "id": "driving-and-withdrawal-features-q01" }, { "text": "Which face, head, hole or other feature accepts driving or extraction force, and will it remain accessible after insertion?", "kind": "action", "id": "driving-and-withdrawal-features-q02" } ] } ] } ] }, { "id": "load-and-retention", "name": "Load and retention", "description": "The supported operating envelope and the conditions governing wedge migration.", "rationale": "Useful force transmission and resistance to backing out require evidence tied to a particular wedge and contact arrangement.", "layers": [ { "id": "working-envelope", "name": "Working envelope", "description": "Connect intended loading and movement to applicable evidence.", "findings": [ { "id": "supported-load-and-displacement", "name": "Supported load and displacement", "description": "Record substantiated limits for the proposed role without assigning an unsupported universal capacity.", "questions": [ { "text": "What source establishes allowable loading, insertion force or displacement, and what material, contact and engagement conditions does it assume?", "kind": "provenance", "id": "supported-load-and-displacement-q01" }, { "text": "What load, engagement depth and required movement describe the proposed use?", "kind": "measurement", "id": "supported-load-and-displacement-q02" }, { "text": "Does the proposed use remain within the evidenced conditions, or does it require further assessment?", "kind": "action", "id": "supported-load-and-displacement-q03" } ] } ] }, { "id": "migration-and-restraint", "name": "Migration and restraint", "description": "Assess the potential for backing out, slipping or expulsion.", "findings": [ { "id": "retention-basis", "name": "Retention basis", "description": "Record how position is maintained and whether the supporting evidence applies to current surfaces and loading.", "questions": [ { "text": "Is retention supplied by a positive restraint, assessed frictional contact or an unverified assumption?", "kind": "definition", "id": "retention-basis-q01" }, { "text": "What evidence addresses retention under the relevant surface condition, vibration and changes in load direction?", "kind": "provenance", "id": "retention-basis-q02" }, { "text": "What restraint or operating restriction is required if migration cannot be ruled out?", "kind": "action", "id": "retention-basis-q03" } ] } ] } ] }, { "id": "damage-and-release", "name": "Damage and release", "description": "Changes to wedge geometry or integrity and the conditions for withdrawing a loaded wedge.", "rationale": "Damage can undermine engagement or driving, while withdrawal can release the very separation or restraint the wedge provides.", "layers": [ { "id": "working-feature-integrity", "name": "Working feature integrity", "description": "Assess deterioration of the entry region, bearing faces and force-application features.", "findings": [ { "id": "damage-affecting-wedge-action", "name": "Damage affecting wedge action", "description": "Record defects by location and their implications for entry, bearing, driving and retention.", "questions": [ { "text": "What rounding, cracking, mushrooming, crushing, bending or surface contamination is present at the working and driving regions?", "kind": "measurement", "id": "damage-affecting-wedge-action-q01" }, { "text": "Which documented acceptance criteria determine whether those observations permit reuse, repair or retirement?", "kind": "provenance", "id": "damage-affecting-wedge-action-q02" } ] } ] }, { "id": "controlled-withdrawal", "name": "Controlled withdrawal", "description": "Identify what depends on the wedge before reducing engagement.", "findings": [ { "id": "release-dependencies", "name": "Release dependencies", "description": "Record the supported load, restraint or stored deformation that may change when the wedge is removed.", "questions": [ { "text": "Which objects could move, close, fall or spring back as wedge engagement decreases?", "kind": "boundary", "id": "release-dependencies-q01" }, { "text": "What unloading, substitute support or restraint must be established before withdrawal?", "kind": "action", "id": "release-dependencies-q02" }, { "text": "What evidenced extraction method applies if the wedge is jammed or its normal withdrawal feature is inaccessible?", "kind": "action", "id": "release-dependencies-q03" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "splitting wedge (wood, stone, masonry)", "holding or stopping wedge (door wedge, wheel chock)", "cutting-edge wedge (the taper of a knife, axe, or chisel)", "tapered machine key (thin taper key, gib-head key, tangential key)", "tapered shim or packing wedge (alignment and leveling)", "cotter and gib-and-cotter fastening wedge", "interproximal dental wedge", "soil-engaging wedge (plowshare, ripper tooth)" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of wedge 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": "Wikipedia", "value_or_pattern": "Wedge (mechanical device)", "note": "Canonical English article for the simple-machine / tool sense in PHY.OBJ; do not confuse with golf, geology, or the exterior-algebra wedge product." }, { "scheme": "ISO 2491 designation", "value_or_pattern": "thin taper key specified by width × height × length against a matching keyway", "note": "Names the machine-key kind of wedge, not a hand splitting wedge." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of wedge 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 2491 Thin taper keys with or without gib head and their corresponding keyways (International Organization for Standardization)", "29 CFR 1926.301(c) Hand tools - impact tools such as wedges shall be kept free of mushroomed heads (Occupational Safety and Health Administration, United States)", "29 CFR 1910.178(k) Powered industrial trucks - wheel chocks (and related trailer-separation chocking practice) (Occupational Safety and Health Administration, United States)" ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of wedge 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": [ "Driven into a log or block of stone with a sledge to split along grain or a cleavage plane.", "Placed under a door leaf or a parked wheel to hold position by friction on the taper.", "Ground into the bevel of knives, axes and chisels so the edge itself is a thin wedge.", "Fitted in a shaft keyway as a taper or gib-head key to lock a hub and transmit torque.", "Slid as a tapered shim under a machine foot or bearing housing to set height and alignment.", "Inserted between teeth in restorative dentistry to separate contacts and adapt a matrix band.", "Formed as the share of a plough or the tooth of a ripper to open soil." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of wedge 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": "included (apex) angle", "typical_range": "about 10-20 for cutting edges; about 20-40 for hand splitting wedges; blunter for holding chocks", "unit": "degree" }, { "quantity": "length (hand splitting wedge)", "typical_range": "150-300", "unit": "mm" }, { "quantity": "mass (hand steel splitting wedge)", "typical_range": "0.5-4", "unit": "kg" }, { "quantity": "ideal mechanical advantage (length / thickness)", "typical_range": "about 5-15 for common splitting wedges, before friction", "unit": "1" }, { "quantity": "struck-face hardness (tool-steel splitting wedge)", "typical_range": "about 50-60", "unit": "HRC" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of wedge 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": [ "Mushrooming of the struck face, then chip-off of steel fragments toward the user.", "Brittle fracture or spalling if the wedge is too hard or badly heat-treated.", "Slip-out under load when faces are oily, icy, or the included angle is too blunt for the friction available.", "Uncontrolled split or fly-out of the workpiece (log, masonry, frozen ground).", "Pinch, crush, or puncture injuries as the taper is driven between parts.", "Loss of holding force in a door wedge or wheel chock, allowing a door to slam or a vehicle to roll.", "Key/cotter walk-out or fretting in a shaft assembly if the taper and end-float are wrong." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of wedge 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": [ "The same simple machine is Keil in German, coin in French, and kusabi (楔) in Japanese; trade catalogues in those languages rarely file the object under the English word wedge.", "British usage still calls a driven fastening taper a cotter; U.S. shop practice more often says taper key, gib key, or (loosely) pin.", "Central European firewood practice often pairs a splitting axe with a steel Keil; North American practice commonly pairs a maul with a separate steel splitting wedge.", "In English, golf wedge (pitching, sand, lob) is a club class, not a simple machine; that sense should not be merged with PHY.OBJ tool wedges." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of wedge 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": "inclined plane", "difference": "An inclined plane is usually a fixed ramp the load moves along; a wedge is the taper that is driven into or under the load." }, { "name": "screw", "difference": "A screw is an inclined plane wrapped as a helix; a wedge's generating curve is linear, not helical." }, { "name": "parallel shim", "difference": "A parallel shim has constant thickness and sets one discrete height; a wedge shim is tapered and adjusts height by how far it is inserted." }, { "name": "chisel", "difference": "A chisel is a handled cutting tool with a ground bevel meant to cut or pare; a splitting wedge is typically a free prism struck on the poll, with a broader included angle and no cutting handle." }, { "name": "froe", "difference": "A froe has a blade and a handle at right angles and is worked by mallet along the grain; it is not a free triangular striking prism." }, { "name": "cam", "difference": "A cam produces displacement by rotation of a varying radius; a wedge produces displacement by linear insertion of a taper." }, { "name": "nail or spike", "difference": "The point uses wedge action, but the object is classified as a slender fastener by aspect ratio and by retention in the hole, not as a simple-machine wedge." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of wedge this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does vr.tr.wedge denote a mechanical wedge specifically, or a broader geometric class of physical objects?", "Which existing registry entries or world models own tapered shims, chocks, splitting wedges and wedge-shaped working parts of tools?", "Which authoritative sources establish operating and inspection limits for the wedge families included in the eventual scope?", "How should retention be assessed when friction, surface condition or vibration is unknown?", "Should paired or adjustable wedge mechanisms be represented as wedge instances in an assembly, or owned entirely by a neighbouring mechanism model?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 16, "questions": 27 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "device, machine or tool", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a wedge, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise a physical wedge, assess its fitness for a specific contact arrangement, and decide whether and how it may be inserted, loaded, adjusted or removed.", "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: wheel chock.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 92 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 wedge, 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": [ "wheel chock" ] } ], "standing": "Described in 92 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one wedge from another, and a wedge 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 wedge, 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 wedge, 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 wedge 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 wedge, 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 wedge, 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 wedge 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 wedge 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 wedge, 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 wedge, 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 wedge 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 wedge from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a wedge, 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 wedge, 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 wedge 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 wedge 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 wedge, 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 wedge, 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 wedge 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 wedge is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a wedge, 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 wedge, 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 wedge 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 wedge is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a wedge, 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 wedge, 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 wedge 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 wedge 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 wedge is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a wedge, 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 wedge, 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 wedge 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 wedge 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 wedge, 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 wedge, 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 wedge 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 wedge 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 wedge between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a wedge, 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 wedge, 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 wedge 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 wedge, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a wedge 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 wedge, 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 wedge, 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 wedge 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 wedge 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 wedge 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 wedge, 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 wedge 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 wedge 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 wedge 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 wedge 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 wedge 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 wedge, 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 wedge 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 wedge and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a wedge, 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 wedge, 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 wedge 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 wedge is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a wedge, 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 wedge, 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 wedge 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 } } } }