{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.system-crash","code":"thing-q333501","url":"https://ver.cy/models/thing/q333501/","name":"system crash","alternateNames":["black screen of death","A Bend","Bootloop","Crash to desktop","fatal system error","White Screen of Death"],"kind":"thing","status":"research-draft","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.QLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A condition in which a computer, operating system or application stops functioning properly and exits, freezes or restarts unexpectedly, caused by software bugs, driver faults, hardware failures, overheating or memory errors, with forms the registry aliases name such as the fatal system error, the Blue Screen of Death s relatives the black screen of death and White Screen of Death seen on some systems and web platforms, a crash to desktop in games, and a bootloop, where a device repeatedly restarts without finishing booting, while A Bend could not be verified. Crash dumps and logs help diagnose causes, and regular backups reduce data loss; crashes in safety-critical systems are addressed by engineering standards.","purpose":"Let an agent explain system crashes, relay causes, symptoms, diagnosis and prevention from computing sources, describe the named forms and flag the unverified alias, give general troubleshooting and backup guidance, and distinguish crashes from hangs, kernel panics as a specific type, planned shutdowns and security breaches.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Unexpected termination","Software or hardware cause","Diagnostic dumps","Data loss risk"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a crash is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a system crash, and how does it differ from hangs, kernel panics, planned shutdowns and security breaches?","kind":"definition"},{"text":"Is a crash affecting a medical, vehicle or industrial safety system, in which case stop use and contact the manufacturer or safety authority?","kind":"boundary"}]}]},{"id":"forms","name":"Forms","description":"Named forms.","findings":[{"id":"forms-finding","name":"Forms","description":"Forms.","questions":[{"text":"What are the black and white screens of death, bootloops, crash to desktop and fatal system errors, and what might A Bend be?","kind":"definition"},{"text":"Which entry fits the specific form?","kind":"action"}]}]}]},{"id":"causes","name":"Causes","description":"Causes.","layers":[{"id":"software","name":"Software","description":"Software bugs.","findings":[{"id":"software-finding","name":"Software","description":"Software.","questions":[{"text":"How do bugs, memory errors and drivers cause crashes?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"hardware","name":"Hardware","description":"Hardware faults.","findings":[{"id":"hardware-finding","name":"Hardware","description":"Hardware.","questions":[{"text":"How do overheating, failing memory and power problems cause crashes?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"diagnosis","name":"Diagnosis","description":"Diagnosis and prevention.","layers":[{"id":"dumps","name":"Dumps","description":"Crash dumps and logs.","findings":[{"id":"dumps-finding","name":"Dumps","description":"Dumps.","questions":[{"text":"How are crash dumps and logs used to diagnose problems?","kind":"provenance"},{"text":"Which entry fits core dump?","kind":"action"}]}]},{"id":"backups","name":"Backups","description":"Backups.","findings":[{"id":"backups-finding","name":"Backups","description":"Backups.","questions":[{"text":"Why do regular backups and updates from official sources reduce harm from crashes?","kind":"action"},{"text":"Is the information current?","kind":"boundary"}]}]}]},{"id":"context","name":"Context","description":"Safety-critical systems.","layers":[{"id":"safety","name":"Safety","description":"Safety-critical software.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"How do standards reduce crash risk in avionics and medical devices?","kind":"provenance"},{"text":"Is the presentation neutral and attributed?","kind":"boundary"}]}]},{"id":"incidents","name":"Incidents","description":"Major outages.","findings":[{"id":"incidents-finding","name":"Incidents","description":"Incidents.","questions":[{"text":"What did investigations report about major crash-related outages, with findings attributed?","kind":"provenance"},{"text":"Which entry fits 2024 CrowdStrike incident?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Collect crash logs and diagnostics on systems the agent is authorized to manage.","Restart services or roll back changes following the operator's runbook.","Report crashes with the version, time and steps that led to them."],"mustNot":["Deliberately crash systems the agent does not own or administer.","Hide, delete or alter crash records to cover a fault.","Restart safety-critical systems without following their procedures.","Share crash dumps that contain personal data or secrets beyond the people fixing it."],"requiresHuman":["Restarting or rolling back production or safety-critical systems.","Disclosing a crash that may be a security vulnerability."]},"ethics":{"considerations":["Crashes in medical, transport or industrial systems can endanger people.","Crash dumps can expose private data held in memory."],"affectedParties":["Users of the system","Operators and engineers","People whose data is in memory"]},"owners":{"steward":"The operator of the affected system.","roles":[],"masterSystems":[]},"relations":[{"target":"Q1095373","type":"parent","note":"registry parent class"},{"target":"Q124805656","type":"parent","note":"registry parent class"},{"target":"Q19977811","type":"parent","note":"registry parent class"},{"target":"computer error","type":"related","note":"in registry terms"},{"target":"Blue screen of death","type":"related"},{"target":"kernel panic","type":"related"},{"target":"hang (computing)","type":"related"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.system-crash","Wikidata: Q333501 (https://www.wikidata.org/wiki/Q333501)"]},"properties":{"applicability":"not-applicable","items":["Windows stop error screen: from Windows NT 3.1, 1993 note - Blue Screen of Death","crash dump: memory snapshot for diagnosis note","registry parents: fault, computer error, breakdown note"]},"recognition":{"applicability":"optional","items":["Unexpected stop of a computer system or program","Black screen of death, A Bend, bootloop, crash to desktop, fatal system error, White Screen of Death","Hangs freeze without exiting; kernel panics are OS-level crashes; planned shutdowns are deliberate; breaches are security incidents","Error screens, frozen displays, sudden restarts or apps closing."]},"capabilities":{"applicability":"required","items":["explain causes and symptoms","relay diagnosis tools","describe named forms","relay prevention and backups"]},"hazards":{"applicability":"required","items":["Data loss","Crashes in safety-critical systems","Unsafe fixes from untrusted downloads"]},"interfaces":{"applicability":"required","items":["IEC 61508 functional safety","DO-178C for avionics software"]},"context":{"applicability":"required","items":["Not applicable; a failure condition.","application crashes","operating system crashes","boot failures and bootloops","hardware-induced crashes","web platform fatal errors"]}},"sources":[{"title":"Wikidata item Q333501: system crash","url":"https://www.wikidata.org/wiki/Q333501","note":"identity and sense of the item"},{"title":"Wikipedia: Crash (computing)","url":"https://en.wikipedia.org/wiki/Crash_%28computing%29","note":"general description of the item"}],"openQuestions":["The registry alias A Bend could not be verified and should be reviewed","Should bootloop be a separate entry?","How should vendor error code references be linked?"],"resources":{"spec":"/models/things/publications/thing-q333501/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q333501/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-14T01:27:58Z","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":{"interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}