{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.chair","code":"thing-q15026","url":"https://ver.cy/models/thing/q15026/","name":"chair","alternateNames":["Blue Chairs of Nice","wheelchair","manual wheelchair","sports wheelchair","motorized mobility scooter","passive wheelchair","Bath chair","electric wheelchair","standing wheelchair","self-propelled wheelchair","transit wheelchair","Mind Controlled Wheelchair"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A piece of furniture for one person to sit on, with a seat, a back and usually four legs; the class also covers wheelchairs and other seating devices.","purpose":"Let an agent describe chairs by type, dimensions, materials and safety, and treat wheelchairs as assistive devices with their own regulation.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["For one person, with a backrest","Wheelchairs are medical devices with their own standards","Ergonomics matter for chairs used for long periods","The academic chair is a different entry"],"structure":{"bundles":[{"id":"design","name":"Design","description":"Type and form.","layers":[{"id":"type","name":"Type","description":"Dining, office, wheelchair.","findings":[{"id":"type-finding","name":"Chair type","description":"The type and intended use.","questions":[{"text":"What type of chair is this, and what is it for?","kind":"definition"},{"text":"Which standard applies to that type?","kind":"provenance"}]}]},{"id":"dimensions","name":"Dimensions","description":"Seat height, width, depth.","findings":[{"id":"dimensions-finding","name":"Dimensions","description":"Key dimensions.","questions":[{"text":"What are its seat height, width and depth?","kind":"measurement"},{"text":"Is it adjustable?","kind":"definition"}]}]}]},{"id":"materials-and-strength","name":"Materials and strength","description":"What it is made of and what it holds.","layers":[{"id":"materials","name":"Materials","description":"Frame and upholstery.","findings":[{"id":"materials-finding","name":"Materials","description":"The materials used.","questions":[{"text":"What materials are used, and are they fire-safe?","kind":"definition"},{"text":"How can it be repaired or recycled?","kind":"action"}]}]},{"id":"strength","name":"Strength","description":"Load and stability.","findings":[{"id":"strength-finding","name":"Strength rating","description":"Load rating and stability.","questions":[{"text":"What load is it rated for?","kind":"measurement"},{"text":"Has it passed stability tests?","kind":"provenance"}]}]}]},{"id":"ergonomics","name":"Ergonomics","description":"Fit to the body.","layers":[{"id":"fit","name":"Fit","description":"Support and adjustment.","findings":[{"id":"fit-finding","name":"Ergonomic fit","description":"Support provided.","questions":[{"text":"Does it support the back and allow feet flat on the floor?","kind":"measurement"},{"text":"Which adjustments are available?","kind":"definition"}]}]},{"id":"assessment","name":"Assessment","description":"Workplace and clinical assessment.","findings":[{"id":"assessment-finding","name":"Assessment","description":"Who assesses suitability.","questions":[{"text":"Has the chair been assessed for this user?","kind":"provenance"},{"text":"When should a professional be involved?","kind":"action"}]}]}]},{"id":"mobility-seating","name":"Mobility seating","description":"Wheelchairs.","layers":[{"id":"wheelchair","name":"Wheelchair type","description":"Manual or powered.","findings":[{"id":"wheelchair-finding","name":"Wheelchair spec","description":"The wheelchair specification.","questions":[{"text":"What kind of wheelchair is it, and what are its limits?","kind":"definition"},{"text":"Which ISO 7176 tests has it passed?","kind":"provenance"}]}]},{"id":"service","name":"Service and repair","description":"Keeping it working.","findings":[{"id":"service-finding","name":"Service arrangement","description":"Maintenance and repair.","questions":[{"text":"Who services and repairs it?","kind":"provenance"},{"text":"What is the plan if it fails away from home?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Describe, select or arrange chairs and seating for a stated use.","Report a wobbly, broken or collapsing chair to whoever keeps it."],"mustNot":["Move or take a wheelchair or mobility seat away from its user.","Leave a folding chair in a state where it can trap fingers or collapse.","Restrain a person in a chair against their will."],"requiresHuman":["Adjusting or repairing a wheelchair someone depends on."]},"ethics":{"considerations":["For wheelchair users, the chair is part of their mobility and independence."],"affectedParties":["Users, including wheelchair users","Children and older people"]},"owners":{"steward":"The person who owns or uses it.","roles":[],"masterSystems":[]},"relations":[{"target":"Q129006002","type":"parent","note":"registry parent class"},{"target":"Q14745","type":"parent","note":"registry parent class"},{"target":"furniture","type":"related","note":"seating furniture"},{"target":"wheelchair","type":"related","note":"an assistive seating device"},{"target":"academic chair","type":"related","note":"a homonym"},{"target":"stool and bench","type":"related","note":"no backrest or for several people"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.chair","Wikidata: Q15026 (https://www.wikidata.org/wiki/Q15026)"]},"properties":{"applicability":"required","items":["seat height: 400-480 mm - dining and office chairs","seat width: 400-500 mm","load rating: 100-150+ kg - bariatric chairs higher"]},"recognition":{"applicability":"required","items":["A seat for one with a backrest, unlike a stool or bench","Wheels and push rims or motors for wheelchairs","Office chairs have a swivel base and adjustments","A seat raised on legs or a base, with a backrest and sometimes armrests; wheelchairs add wheels and push rims."]},"capabilities":{"applicability":"required","items":["sit on it","adjust it, where it is adjustable","buy, repair or recycle it","prescribe it, in the case of wheelchairs and special seating"]},"hazards":{"applicability":"required","items":["Tipping and collapse","Finger traps in folding chairs","Poor ergonomics causing back pain","Wheelchair failures leaving users stranded"]},"interfaces":{"applicability":"required","items":["EN 1022 and EN 12520 domestic seating safety","EN 1335 office chairs","ISO 7176 wheelchair standards and medical device regulation","EN 14988 children high chairs"]},"context":{"applicability":"required","items":["Seating one person, for work, rest, dining or mobility.","dining, office, armchair, folding, high chair for infants","wheelchairs: manual, powered, sports","mobility scooters as related devices","design classics and public seating"]}},"sources":[{"title":"Wikidata item Q15026: chair","url":"https://www.wikidata.org/wiki/Q15026","note":"identity and sense of the item"},{"title":"Wikipedia: Chair","url":"https://en.wikipedia.org/wiki/Chair","note":"general description of the item"}],"openQuestions":["Should wheelchairs be a separate entry from chairs as furniture?","How should ergonomic properties be recorded?","How should assistive seating be linked to prescriptions?"],"resources":{"spec":"/models/things/publications/thing-q15026/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q15026/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T04:44:29Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:54+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}