{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.pressure","code":"thing-q39552","url":"https://ver.cy/models/thing/q39552/","name":"pressure","alternateNames":["blood pressure","arterial blood pressure","pulmonary wedge pressure","mean arterial pressure","systolic blood pressure","diastolic blood pressure","intracardiac pressure","aortic pressure","venous blood pressure","pulmonary artery pressure","ventricular pressure","systemic arterial pressure"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.STA"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Force applied perpendicular to a surface per unit area, measured in pascals (N/m2); includes atmospheric, hydrostatic, gas and blood pressure, expressed as absolute or gauge pressure.","purpose":"Let an agent handle pressure by kind, units, measurement and safety, and route blood pressure questions to health guidance without diagnosis.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Force per unit area","Scalar quantity","Many units in use","Relevant to safety"],"structure":{"bundles":[{"id":"quantity","name":"Quantity","description":"Which pressure.","layers":[{"id":"kind","name":"Kind","description":"Atmospheric, gas.","findings":[{"id":"kind-finding","name":"Kind","description":"Pressure kind.","questions":[{"text":"Which kind of pressure is meant?","kind":"definition"},{"text":"Is it absolute or gauge pressure?","kind":"definition"}]}]},{"id":"units","name":"Units","description":"Conversion.","findings":[{"id":"units-finding","name":"Units","description":"Units.","questions":[{"text":"What is the value in pascals or another unit?","kind":"measurement"},{"text":"Which unit is conventional here?","kind":"definition"}]}]}]},{"id":"measurement","name":"Measurement","description":"Instruments.","layers":[{"id":"instrument","name":"Instrument","description":"Gauges.","findings":[{"id":"instrument-finding","name":"Instrument","description":"Instrument.","questions":[{"text":"Which instrument measures it?","kind":"definition"},{"text":"How accurate is it?","kind":"measurement"}]}]},{"id":"calibration","name":"Calibration","description":"Accuracy.","findings":[{"id":"calibration-finding","name":"Calibration","description":"Calibration.","questions":[{"text":"When was the gauge last calibrated?","kind":"provenance"},{"text":"Against which standard?","kind":"provenance"}]}]}]},{"id":"safety","name":"Safety","description":"Equipment.","layers":[{"id":"equipment","name":"Equipment","description":"Vessels.","findings":[{"id":"equipment-finding","name":"Equipment","description":"Pressure equipment.","questions":[{"text":"What is the maximum allowable pressure of this equipment?","kind":"measurement"},{"text":"Is it inspected as required?","kind":"provenance"}]}]},{"id":"tyres","name":"Tyres","description":"Everyday.","findings":[{"id":"tyres-finding","name":"Tyres","description":"Tyre pressure.","questions":[{"text":"What tyre pressure does the manufacturer specify?","kind":"provenance"},{"text":"Should it be checked cold?","kind":"action"}]}]}]},{"id":"health","name":"Health","description":"Blood pressure.","layers":[{"id":"reading","name":"Reading","description":"Measurement.","findings":[{"id":"reading-finding","name":"Reading","description":"Blood pressure reading.","questions":[{"text":"How is blood pressure measured correctly, according to guidelines?","kind":"provenance"},{"text":"Is a very high reading with symptoms an emergency?","kind":"boundary"}]}]},{"id":"advice","name":"Advice","description":"Clinician.","findings":[{"id":"advice-finding","name":"Advice","description":"Advice limit.","questions":[{"text":"Is the user asking to interpret their own readings?","kind":"boundary"},{"text":"How should they be referred to a clinician?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Convert pressure units and state whether a figure is gauge or absolute.","Read instrument and system pressure data it is authorized to access and report it.","Flag a reading outside the stated safe range to the operator."],"mustNot":["Report a gauge reading as absolute pressure, or the reverse, in a safety calculation.","Raise a system above its rated pressure or defeat a relief device.","Interpret a person's blood pressure reading as a diagnosis or change their medication.","Suppress or smooth away a pressure alarm on a vessel or pipeline."],"requiresHuman":["Any change to the set point of a relief or safety device.","Taking a pressurised system out of or back into service."]},"ethics":{"considerations":["Pressure vessel and pipeline failures kill people nearby.","Misread blood pressure leads to wrong treatment decisions."],"affectedParties":["Workers near pressurised equipment","People living near installations","Patients"]},"owners":{"steward":"The operator of the pressurised system; for units, the international system of units defines the pascal.","roles":[],"masterSystems":[]},"relations":[{"target":"Q107715","type":"parent","note":"registry parent class"},{"target":"Q141187343","type":"parent","note":"registry parent class"},{"target":"Q141256417","type":"parent","note":"registry parent class"},{"target":"Q181175","type":"parent","note":"registry parent class"},{"target":"Q30337763","type":"parent","note":"registry parent class"},{"target":"Q3387041","type":"parent","note":"registry parent class"},{"target":"physical quantity","type":"related","note":"category"},{"target":"pascal","type":"related","note":"unit"},{"target":"manometer and barometer","type":"related","note":"instruments"},{"target":"blood pressure","type":"related","note":"medical sense"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.pressure","Wikidata: Q39552 (https://www.wikidata.org/wiki/Q39552)","SI unit: pascal (Pa) unit"]},"properties":{"applicability":"not-applicable","items":["standard atmosphere: 101325 Pa","1 bar: 100000 Pa"]},"recognition":{"applicability":"optional","items":["Units: Pa, bar, psi, mmHg, atm","Gauge versus absolute readings","Social pressure is a different sense","Not visible; shown on gauges, barometers and monitors."]},"capabilities":{"applicability":"required","items":["convert pressure units","distinguish absolute and gauge pressure","read gauges and sensors","check pressure equipment safety"]},"hazards":{"applicability":"required","items":["Pressure vessel failure","Confusing gauge and absolute pressure","Agents interpreting personal blood pressure readings"]},"interfaces":{"applicability":"required","items":["SI Brochure","EU Pressure Equipment Directive","Blood pressure measurement guidelines"]},"context":{"applicability":"required","items":["Engineering, weather, medicine and everyday devices.","atmospheric pressure","hydrostatic pressure","gas pressure","blood pressure","tyre pressure"]}},"sources":[{"title":"Wikidata item Q39552: pressure","url":"https://www.wikidata.org/wiki/Q39552","note":"identity and sense of the item"},{"title":"Wikipedia: Pressure","url":"https://en.wikipedia.org/wiki/Pressure","note":"general description of the item"}],"openQuestions":["Should pressure kinds be separate entries?","How should unit conversion be linked?","How should blood pressure be split off?"],"resources":{"spec":"/models/things/publications/thing-q39552/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q39552/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T09:36:59Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:59+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}