{
    "model": {
        "rank": 2228,
        "code": "thing-q79838",
        "model_id": "vr.tr.accordion",
        "name": "accordion",
        "purpose": "Enable an AI agent to recognise an accordion, assess its playability and condition, and decide which playing, handling, maintenance or repair actions are appropriate.",
        "family": "Thing Registry",
        "category": "Physical world and living systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "PHY",
        "domain": "PHY.OBJ",
        "industry": "",
        "version": "",
        "url": "/models/thing/q79838/",
        "tier": 2,
        "score": 111,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "organetto",
                "elektronium",
                "button accordion",
                "musette",
                "three-row button accordion",
                "four-row button accordion",
                "two-row button accordion",
                "five-row button accordion",
                "six-row button accordion",
                "free bass accordion",
                "one-row button accordion",
                "Magic Organa",
                "sanfona",
                "piano accordion",
                "diatonic button accordion",
                "electric accordion",
                "pşine",
                "digital accordion",
                "Roland V-Accordion",
                "Harmonia pedałowa",
                "chromatic button accordion",
                "acordeon",
                "Cajun accordion",
                "Flutina",
                "Irish accordeon",
                "trikiti",
                "Old-Slovenian diatonic button accordion",
                "Steirische Harmonika",
                "Schwyzerörgeli",
                "Heligonka",
                "Schrammel accordion"
            ],
            "aliasCount": 31,
            "merged": 31,
            "knownIn": 111,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": "vr.tr.accordion",
            "source": {
                "dataset": "wikidata",
                "item": "Q79838",
                "url": "https://www.wikidata.org/wiki/Q79838",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-07T10:45:47Z",
                "providers": [
                    "Codex",
                    "Grok"
                ],
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "usd": 0.00191148,
                        "turns": 1,
                        "seconds": 49.7,
                        "error": null
                    },
                    "codex": {
                        "seconds": 134.5,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07b77-57f2-73d2-93a4-3c5ae6497e94\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: accordion\nRegistry id: vr.tr.accordion\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Ver"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q79838",
                "registryId": "vr.tr.accordion",
                "name": "accordion",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "PHY.OBJ"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q79838/",
            "model": {
                "registry_id": "vr.tr.accordion",
                "name": "accordion",
                "purpose": "Enable an AI agent to recognise an accordion, assess its playability and condition, and decide which playing, handling, maintenance or repair actions are appropriate.",
                "definition": "A portable bellows-driven free-reed aerophone whose two reed chests are sounded by expanding and compressing a bellows, with melody and accompaniment selected by button or keyboard manuals.",
                "scope_statement": "This model owns the individual accordion as a bellows-operated musical instrument, including its playing interfaces, sound-producing mechanism, configuration, physical condition and operating constraints; electronic variants require an explicit mechanism classification.",
                "in_scope": [
                    "Instrument identity and boundaries, including acoustic, electronic or hybrid configuration",
                    "Treble and bass control layouts, note mappings and register selections",
                    "Bellows, air controls and their relationship to sound production",
                    "Reed or electronic sound response and observable playing faults",
                    "Playing support, transport preparation and maintenance requirements"
                ],
                "out_of_scope": [
                    "Accordion-style user-interface components and other objects named for folding action",
                    "Concertinas, bandoneons and other neighbouring bellows instruments as independently classified things",
                    "Musical compositions, arrangements and performance rights",
                    "The player's technique, health or training programme",
                    "External amplifiers, recording systems and carrying cases as independently managed objects"
                ],
                "distinguishing_features": [
                    "Check for a bellows assembly joining two end bodies with playing controls; a keyboard alone does not establish accordion identity.",
                    "Record whether the treble side uses piano keys or buttons, together with the opposite-hand controls; buttons alone do not distinguish an accordion from a concertina or bandoneon.",
                    "Use maker identification and the combined control layout, bass organisation and construction to resolve classification against neighbouring bellows instruments.",
                    "Determine whether sound comes from air-driven reeds, electronic generation or both; accordion-shaped controls and moving bellows do not establish an acoustic mechanism.",
                    "Check whether a control produces the same or a different note on bellows push and pull, and use this with the layout to identify the playing system."
                ],
                "characteristics": [
                    {
                        "name": "Sound-production configuration",
                        "kind": "category",
                        "unit_or_values": "acoustic reeds | electronic | hybrid | unresolved",
                        "why_it_matters": "Determines whether assessment should examine airflow and reeds, electrical operation, or both."
                    },
                    {
                        "name": "Treble interface and mapping",
                        "kind": "category",
                        "unit_or_values": "piano keys or buttons; observed layout, control count and note mapping",
                        "why_it_matters": "Establishes how notes are selected and whether a requested passage is playable."
                    },
                    {
                        "name": "Bass-side organisation",
                        "kind": "category",
                        "unit_or_values": "preset bass/chords | free bass | convertible | other documented arrangement | unresolved",
                        "why_it_matters": "Determines the available accompaniment and independent-note capabilities."
                    },
                    {
                        "name": "Bellows-direction note relationship",
                        "kind": "category",
                        "unit_or_values": "same note in both directions | different notes by direction | mixed or configuration-dependent | untested",
                        "why_it_matters": "Prevents intended push/pull differences from being mistaken for faults."
                    },
                    {
                        "name": "Sounding range",
                        "kind": "measurement",
                        "unit_or_values": "lowest and highest verified sounding pitches, separately by side, register and direction where relevant",
                        "why_it_matters": "Supports repertoire selection and identification of missing or unexpected notes."
                    },
                    {
                        "name": "Register configuration",
                        "kind": "state",
                        "unit_or_values": "available selections and active selection for each side; verified effect or untested",
                        "why_it_matters": "Makes tonal and octave changes interpretable during playing and diagnosis."
                    },
                    {
                        "name": "Bellows air retention",
                        "kind": "state",
                        "unit_or_values": "untested | no evident unintended leakage | suspected leakage | confirmed leakage; test conditions recorded",
                        "why_it_matters": "Indicates whether air loss may impair control or require inspection."
                    },
                    {
                        "name": "Pitch deviation",
                        "kind": "measurement",
                        "unit_or_values": "cents relative to a stated reference, with register, direction and test conditions",
                        "why_it_matters": "Supports tuning assessment while preserving distinctions between intended tuning and faults."
                    },
                    {
                        "name": "Playing response",
                        "kind": "state",
                        "unit_or_values": "per control and direction: responsive | delayed | silent | sticking | unintended sound | untested",
                        "why_it_matters": "Locates faults without treating the entire instrument as uniformly playable."
                    },
                    {
                        "name": "Playing mass",
                        "kind": "measurement",
                        "unit_or_values": "kg, with attached accessories identified",
                        "why_it_matters": "Informs support, handling and suitability for the intended playing arrangement."
                    },
                    {
                        "name": "Support attachment integrity",
                        "kind": "state",
                        "unit_or_values": "secure on inspection | worn | loose | damaged | uninspected",
                        "why_it_matters": "Determines whether straps and their attachment points can be relied on during handling."
                    },
                    {
                        "name": "Applicable configuration documentation",
                        "kind": "relation",
                        "unit_or_values": "links to matching maker documentation, layout charts and service records",
                        "why_it_matters": "Grounds classification, expected response and permitted servicing in evidence for this instrument."
                    }
                ],
                "affordances": [
                    "Identify the playing system and select compatible fingering or repertoire guidance.",
                    "Play or test specified controls in each relevant bellows direction and register.",
                    "Select available registers or bass modes and record their verified effects.",
                    "Assess air retention, note response and support integrity before further use.",
                    "Prepare the instrument for supported playing, carrying or storage using its documented provisions.",
                    "Route a fault to appropriate cleaning, adjustment, tuning or specialist repair based on observed evidence."
                ]
            },
            "sources": [
                {
                    "id": "placeholder",
                    "title": "Researching",
                    "url": "",
                    "what_it_supports": "initial"
                }
            ],
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-playing-system",
                        "name": "Identity and playing system",
                        "description": "Establish what kind of accordion this is and which configuration its controls implement.",
                        "rationale": "Similar external forms can conceal different note systems and sound mechanisms, making appearance alone insufficient for recognition or operation.",
                        "layers": [
                            {
                                "id": "instrument-classification",
                                "name": "Instrument classification",
                                "description": "Resolve the instrument's identity and its boundary with neighbouring bellows instruments.",
                                "findings": [
                                    {
                                        "id": "classification-evidence",
                                        "name": "Classification evidence",
                                        "description": "Record markings, construction observations and documentation supporting the accordion classification without inferring a subtype from appearance alone.",
                                        "questions": [
                                            {
                                                "text": "What markings, maker records or other evidence identify this instrument and its model?",
                                                "kind": "provenance",
                                                "id": "classification-evidence-q01"
                                            },
                                            {
                                                "text": "Which observed features support classification as an accordion rather than a concertina, bandoneon or another bellows instrument?",
                                                "kind": "boundary",
                                                "id": "classification-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "control-topology",
                                "name": "Control topology",
                                "description": "Describe the arrangement and meaning of controls on both sides.",
                                "findings": [
                                    {
                                        "id": "verified-playing-layout",
                                        "name": "Verified playing layout",
                                        "description": "Capture treble and bass layouts, direction-dependent mappings and any selectable bass mode.",
                                        "questions": [
                                            {
                                                "text": "What treble layout and bass organisation are present, including any mode conversion?",
                                                "kind": "definition",
                                                "id": "verified-playing-layout-q01"
                                            },
                                            {
                                                "text": "Which controls sound differently on push and pull, and how was that mapping verified?",
                                                "kind": "measurement",
                                                "id": "verified-playing-layout-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "bellows-and-expression",
                        "name": "Bellows and expression",
                        "description": "Represent how bellows movement controls airflow or electronic expression.",
                        "rationale": "Bellows behaviour directly affects articulation, sustained sound and diagnosis, but its role depends on the sound mechanism.",
                        "layers": [
                            {
                                "id": "bellows-control-path",
                                "name": "Bellows control path",
                                "description": "Identify the connection between bellows motion, air controls and musical response.",
                                "findings": [
                                    {
                                        "id": "airflow-or-sensing-role",
                                        "name": "Airflow or sensing role",
                                        "description": "Establish whether bellows motion drives reeds, supplies an electronic control signal or serves both functions.",
                                        "questions": [
                                            {
                                                "text": "How does bellows motion influence sound in the instrument's current operating mode?",
                                                "kind": "definition",
                                                "id": "airflow-or-sensing-role-q01"
                                            },
                                            {
                                                "text": "Which air-release or resistance controls are present, and how should they be used when repositioning the bellows?",
                                                "kind": "action",
                                                "id": "airflow-or-sensing-role-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "bellows-integrity",
                                "name": "Bellows integrity",
                                "description": "Assess folds, joints, seals and movement without assuming a universal test threshold.",
                                "findings": [
                                    {
                                        "id": "air-retention-and-travel",
                                        "name": "Air retention and travel",
                                        "description": "Record unintended air loss, binding or visible damage together with the conditions under which it appears.",
                                        "questions": [
                                            {
                                                "text": "Under a documented gentle test, what evidence indicates unintended leakage, binding or abnormal resistance?",
                                                "kind": "measurement",
                                                "id": "air-retention-and-travel-q01"
                                            },
                                            {
                                                "text": "Do observed fold, corner or joint defects require restricted bellows movement or inspection before playing?",
                                                "kind": "action",
                                                "id": "air-retention-and-travel-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "voice-and-registers",
                        "name": "Voice and registers",
                        "description": "Describe the available sound resources and distinguish intended voicing from abnormal output.",
                        "rationale": "A sounding note is not enough to establish correctness: registers, reed combinations and electronic settings change the expected result.",
                        "layers": [
                            {
                                "id": "sound-resource-configuration",
                                "name": "Sound resource configuration",
                                "description": "Identify selectable acoustic voices or electronic sound resources.",
                                "findings": [
                                    {
                                        "id": "register-to-sound-mapping",
                                        "name": "Register-to-sound mapping",
                                        "description": "Record each available selection and its verified effect, leaving undocumented internal reed arrangements unresolved.",
                                        "questions": [
                                            {
                                                "text": "Which register or voice selections are available on each side, and what sounding change does each produce?",
                                                "kind": "measurement",
                                                "id": "register-to-sound-mapping-q01"
                                            },
                                            {
                                                "text": "What documentation or inspection supports any claimed reed configuration or electronic voice assignment?",
                                                "kind": "provenance",
                                                "id": "register-to-sound-mapping-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "pitch-and-voicing-assessment",
                                "name": "Pitch and voicing assessment",
                                "description": "Evaluate pitch and combined-voice behaviour against an identified intended configuration.",
                                "findings": [
                                    {
                                        "id": "intended-versus-observed-voicing",
                                        "name": "Intended versus observed voicing",
                                        "description": "Separate measured deviation or uneven response from deliberate differences between simultaneously sounding voices.",
                                        "questions": [
                                            {
                                                "text": "What pitch reference and intended tuning or voicing are documented for this instrument?",
                                                "kind": "provenance",
                                                "id": "intended-versus-observed-voicing-q01"
                                            },
                                            {
                                                "text": "What pitch deviations or uneven voice responses occur under stated register, direction and playing conditions?",
                                                "kind": "measurement",
                                                "id": "intended-versus-observed-voicing-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "playability-and-fault-localisation",
                        "name": "Playability and fault localisation",
                        "description": "Assess whether note controls and mode changes produce their expected musical results.",
                        "rationale": "Accordion faults may depend on one control, one bellows direction or one register, so a single overall condition label is inadequate.",
                        "layers": [
                            {
                                "id": "control-and-note-response",
                                "name": "Control and note response",
                                "description": "Connect each tested control to its mechanical feel and sounding response.",
                                "findings": [
                                    {
                                        "id": "response-test-coverage",
                                        "name": "Response test coverage",
                                        "description": "Record tested and untested combinations of control, bellows direction and register, including sticking and unintended sound.",
                                        "questions": [
                                            {
                                                "text": "Which controls return normally and sound as expected in each tested direction and register?",
                                                "kind": "measurement",
                                                "id": "response-test-coverage-q01"
                                            },
                                            {
                                                "text": "Where do silent notes, delayed response, sticking controls or sound after release occur?",
                                                "kind": "measurement",
                                                "id": "response-test-coverage-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "fault-triage",
                                "name": "Fault triage",
                                "description": "Use observed patterns to select further checks without presenting an unverified internal cause as established.",
                                "findings": [
                                    {
                                        "id": "fault-evidence-and-next-check",
                                        "name": "Fault evidence and next check",
                                        "description": "Associate symptoms with plausible control, airflow, voice or electronic paths and an appropriate next inspection.",
                                        "questions": [
                                            {
                                                "text": "Does the symptom follow a particular control, direction, register, bass mode or electronic setting?",
                                                "kind": "measurement",
                                                "id": "fault-evidence-and-next-check-q01"
                                            },
                                            {
                                                "text": "What further non-invasive check or specialist inspection would distinguish the remaining possible causes?",
                                                "kind": "action",
                                                "id": "fault-evidence-and-next-check-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "supported-use-and-care",
                        "name": "Supported use and care",
                        "description": "Determine how the accordion can be supported, moved and maintained in its observed condition.",
                        "rationale": "Playing and carrying place loads on the instrument's supports and bellows assembly, while internal adjustments depend on its specific mechanism.",
                        "layers": [
                            {
                                "id": "playing-and-carrying-support",
                                "name": "Playing and carrying support",
                                "description": "Assess straps, attachment points and bellows restraints in relation to the intended handling action.",
                                "findings": [
                                    {
                                        "id": "support-readiness",
                                        "name": "Support readiness",
                                        "description": "Record the integrity and fit of installed supports and the documented preparation for carrying.",
                                        "questions": [
                                            {
                                                "text": "Are the shoulder straps, bass-hand strap and their attachment points secure and usable where fitted?",
                                                "kind": "measurement",
                                                "id": "support-readiness-q01"
                                            },
                                            {
                                                "text": "How should the bellows and installed supports be arranged before this instrument is lifted or carried?",
                                                "kind": "action",
                                                "id": "support-readiness-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "maintenance-and-operating-limits",
                                "name": "Maintenance and operating limits",
                                "description": "Connect the specific construction and service history to appropriate care and operating requirements.",
                                "findings": [
                                    {
                                        "id": "permitted-care-and-service",
                                        "name": "Permitted care and service",
                                        "description": "Identify documented user care, specialist interventions and any electrical requirements for electronic functions.",
                                        "questions": [
                                            {
                                                "text": "Which cleaning, storage and service instructions apply to this instrument's materials and sound mechanism?",
                                                "kind": "provenance",
                                                "id": "permitted-care-and-service-q01"
                                            },
                                            {
                                                "text": "Which observed defects permit continued use, require restricted use or call for repair before further playing?",
                                                "kind": "action",
                                                "id": "permitted-care-and-service-q02"
                                            },
                                            {
                                                "text": "If electronic functions are present, what power source and connection requirements must be satisfied?",
                                                "kind": "action",
                                                "id": "permitted-care-and-service-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": [
                                            "piano accordion",
                                            "button accordion",
                                            "diatonic accordion",
                                            "chromatic button accordion",
                                            "concertina",
                                            "bandoneon",
                                            "bayán"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of accordion this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Does the registry intend accordion to include fully electronic and hybrid instruments, and where does it place the boundary with neighbouring bellows instruments?",
                "Which authoritative layout references cover the playing systems that this model must recognise, including regional and modified instruments?",
                "What repeatable, non-damaging bellows and response tests are appropriate for different accordion constructions, and what acceptance criteria are justified?",
                "How should intended tuning, combined-reed beating and test-condition effects be represented so that deliberate voicing is not labelled a defect?",
                "Which maker or specialist sources establish construction-specific storage conditions, user-serviceable actions and defects that require stopping use?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 11,
                "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 accordion, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an AI agent to recognise an accordion, assess its playability and condition, and decide which playing, handling, maintenance or repair actions are appropriate.",
            "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: organetto, elektronium, button accordion, musette, three-row button accordion, four-row button accordion, two-row button accordion, five-row button accordion, six-row button accordion, free bass accordion, one-row button accordion, Magic Organa.",
                "31 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 111 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 accordion, 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": [
                        "organetto",
                        "elektronium",
                        "button accordion",
                        "musette",
                        "three-row button accordion",
                        "four-row button accordion",
                        "two-row button accordion",
                        "five-row button accordion",
                        "six-row button accordion",
                        "free bass accordion",
                        "one-row button accordion",
                        "Magic Organa"
                    ]
                }
            ],
            "standing": "Described in 111 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 31 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 accordion from another, and a accordion 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 accordion, 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 accordion, 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 accordion 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 accordion, 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 accordion, 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 accordion 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 accordion 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 accordion, 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 accordion, 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 accordion 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 accordion from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a accordion, 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 accordion, 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 accordion 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 accordion 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 accordion, 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 accordion, 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 accordion 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 accordion is built from and which parts are replaceable.",
                                        "questions": [
                                            {
                                                "id": "parts-and-materials-q01",
                                                "text": "What identifies and describes the composition of a accordion, 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 accordion, 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 accordion 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 accordion is judged and by whom.",
                                        "questions": [
                                            {
                                                "id": "condition-assessment-q01",
                                                "text": "What identifies and describes the condition of a accordion, 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 accordion, 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 accordion 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 accordion 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 accordion is, and what that position is measured against.",
                                        "questions": [
                                            {
                                                "id": "position-and-frame-q01",
                                                "text": "What identifies and describes the location of a accordion, 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 accordion, 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 accordion 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 accordion 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 accordion, 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 accordion, 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 accordion 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 accordion 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 accordion between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a accordion, 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 accordion, 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 accordion 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 accordion, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a accordion 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 accordion, 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 accordion, 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 accordion 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 accordion 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 accordion 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 accordion, 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 accordion 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 accordion 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 accordion 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 accordion 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 accordion 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 accordion, 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 accordion 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 accordion and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a accordion, 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 accordion, 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 accordion 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 accordion is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a accordion, 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 accordion, 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 accordion 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
            }
        }
    }
}