{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T04:44:29Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-05T16:30:00Z", "ingestedAt": "2026-10-05T13:19:03+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-06T19:51:54+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q15026", "registryId": "vr.tr.chair", "name": "chair", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q15026/", "model": { "registry_id": "vr.tr.chair", "name": "chair", "purpose": "Let an agent describe chairs by type, dimensions, materials and safety, and treat wheelchairs as assistive devices with their own regulation.", "definition": "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.", "what_it_is_for": "Seating one person, for work, rest, dining or mobility.", "affordances": [ "sit on it", "adjust it, where it is adjustable", "buy, repair or recycle it", "prescribe it, in the case of wheelchairs and special seating" ], "distinguishing_features": [ "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" ], "appearance": "A seat raised on legs or a base, with a backrest and sometimes armrests; wheelchairs add wheels and push rims.", "visual_identification": [ "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" ], "physical_properties": [ { "quantity": "seat height", "typical_range": "400-480", "unit": "mm", "note": "dining and office chairs" }, { "quantity": "seat width", "typical_range": "400-500", "unit": "mm", "note": "" }, { "quantity": "load rating", "typical_range": "100-150+", "unit": "kg", "note": "bariatric chairs higher" } ], "families_and_kinds": [ "dining, office, armchair, folding, high chair for infants", "wheelchairs: manual, powered, sports", "mobility scooters as related devices", "design classics and public seating" ], "related_models": [ { "relation": "is a kind of", "target": "furniture", "why": "seating furniture" }, { "relation": "has kind", "target": "wheelchair", "why": "an assistive seating device" }, { "relation": "is confused with", "target": "academic chair", "why": "a homonym" }, { "relation": "is confused with", "target": "stool and bench", "why": "no backrest or for several people" } ], "identifiers": [], "standards_and_regulation": [ "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" ], "failure_modes_and_hazards": [ "Tipping and collapse", "Finger traps in folding chairs", "Poor ergonomics causing back pain", "Wheelchair failures leaving users stranded" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Describe, select or arrange chairs and seating for a stated use.", "Report a wobbly, broken or collapsing chair to whoever keeps it." ], "must_not": [ "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." ], "requires_human": [ "Adjusting or repairing a wheelchair someone depends on." ] }, "ethics": { "considerations": [ "For wheelchair users, the chair is part of their mobility and independence." ], "affected_parties": [ "Users, including wheelchair users", "Children and older people" ] }, "owners": { "steward": "The person who owns or uses it.", "master_systems": [] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q15026: chair", "url": "https://www.wikidata.org/wiki/Q15026", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Chair", "url": "https://en.wikipedia.org/wiki/Chair", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "design", "name": "Design", "description": "Type and form.", "rationale": "Type decides use and standards.", "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.", "rationale": "Strength and materials decide safety and life.", "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.", "rationale": "Chairs used for hours affect health.", "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.", "rationale": "Wheelchairs are regulated devices critical to their users.", "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" } ] } ] } ] } ] }, "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?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }