{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.hours","code":"thing-hours","url":"https://ver.cy/models/thing/hours/","name":"hours","alternateNames":["shift","work shift","duty period","go","spell","tour","turn","trick","watch","dogwatch","day shift","evening shift"],"kind":"thing","status":"published","version":"0.2.0-wave.5","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"noun.time","plane":"XCT","domain":["XCT.TME"],"industry":[],"navPath":"","tags":[],"facets":{"substance":"abstract","origin":"conceptual","agency":"inert","mobility":"not-applicable","scale":"not-applicable","affordances":["observable"]}},"whatItIs":"A period of time assigned for work, such as a shift, watch or duty period; used for scheduling work in workplaces that operate in turns.","purpose":"Let an agent describe work periods and shift patterns, compute durations, and point to working-time rules, without giving legal advice.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["A shift is an assigned period, unlike total working time over a week.","Watches are traditional shipboard duty periods, including dogwatches.","Night work carries special rules in many jurisdictions."],"structure":{"bundles":[{"id":"shift","name":"Shift","description":"Which period.","layers":[{"id":"type","name":"Type","description":"Day, night, split.","findings":[{"id":"shift-type","name":"Shift type","description":"Type.","questions":[{"text":"What kind of shift is it?","kind":"definition"},{"text":"At which workplace?","kind":"provenance"}]}]},{"id":"times","name":"Times","description":"Start and end.","findings":[{"id":"times","name":"Times","description":"Start, end, breaks.","questions":[{"text":"When does it start and end?","kind":"provenance"},{"text":"What breaks are included?","kind":"provenance"}]}]}]},{"id":"pattern","name":"Pattern","description":"Rota.","layers":[{"id":"rotation","name":"Rotation","description":"Pattern.","findings":[{"id":"rotation","name":"Rotation","description":"Pattern.","questions":[{"text":"What rotation pattern is used?","kind":"provenance"},{"text":"How often does it change?","kind":"measurement"}]}]},{"id":"rest","name":"Rest","description":"Rest between shifts.","findings":[{"id":"rest","name":"Rest","description":"Hours.","questions":[{"text":"How much rest between shifts?","kind":"measurement"},{"text":"Does it meet the rules?","kind":"boundary"}]}]}]},{"id":"rules","name":"Rules","description":"Law.","layers":[{"id":"limits","name":"Limits","description":"Maximum hours.","findings":[{"id":"limit","name":"Limit","description":"Rule and value.","questions":[{"text":"Which limits apply?","kind":"provenance"},{"text":"In which jurisdiction?","kind":"provenance"}]}]},{"id":"night-work","name":"Night work","description":"Special rules.","findings":[{"id":"night-rule","name":"Night rule","description":"Rule.","questions":[{"text":"Which night work rules apply?","kind":"provenance"},{"text":"Are health checks required?","kind":"provenance"}]}]}]},{"id":"wellbeing","name":"Wellbeing","description":"Fatigue.","layers":[{"id":"fatigue","name":"Fatigue","description":"Risk.","findings":[{"id":"fatigue-risk","name":"Fatigue risk","description":"Assessment.","questions":[{"text":"Is fatigue assessed?","kind":"provenance"},{"text":"By which method?","kind":"provenance"}]}]},{"id":"support","name":"Support","description":"Help.","findings":[{"id":"support","name":"Support","description":"Measures.","questions":[{"text":"Which support exists for shift workers?","kind":"provenance"},{"text":"From whom?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["describe shifts and rules in general terms"],"mustNot":["advise breaking rest rules"],"requiresHuman":["disputes, which go to employers, unions or authorities"]},"ethics":{"considerations":["worker health"],"affectedParties":["workers"]},"owners":{"steward":"the employer that sets the schedule","roles":[],"masterSystems":["rostering systems"]},"relations":[{"target":"oewn-15143170-n","type":"parent","note":"registry parent class"},{"target":"time interval","type":"related","note":"time"},{"target":"work schedule","type":"related","note":"roster"},{"target":"working time law","type":"related","note":"rules"},{"target":"work time","type":"related","note":"broader period"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.hours","Open English WordNet: oewn-15143042-n"]},"properties":{"applicability":"not-applicable","items":[]},"recognition":{"applicability":"optional","items":["Shown on rosters and schedules"]},"capabilities":{"applicability":"required","items":["describe shift types and patterns","compute shift lengths and rest","point to working-time rules","explain night and on-call work"]},"hazards":{"applicability":"required","items":["Fatigue from long or night shifts","Insufficient rest between shifts"]},"interfaces":{"applicability":"required","items":["EU Working Time Directive 2003/88/EC","ILO conventions on hours of work and night work (C171)","ILO Maritime Labour Convention for seafarers' hours"]},"context":{"applicability":"required","items":["Organising who works when.","day shift","evening shift","night shift","split shift","on-call duty","watch and dogwatch (maritime)"]}},"sources":[{"title":"Shift work","url":"https://en.wikipedia.org/wiki/Shift_work","note":"shifts and duty periods"},{"title":"Directive 2003/88/EC concerning certain aspects of the organisation of working time","url":"https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32003L0088","note":"Shift-work and night-work definitions; working-time, rest and night-work provisions."},{"title":"Night Work Convention, 1990 (No. 171)","url":"https://www.ilo.org/dyn/normlex/en/f?p=NORMLEXPUB%3A12100%3A0%3A%3ANO%3A%3AP12100_INSTRUMENT_ID%3A312316","note":"Correct C171 identifier, issuing body and night-work subject matter."},{"title":"Maritime Labour Convention, 2006, as amended","url":"https://www.ilo.org/dyn/normlex/en/f?p=NORMLEXPUB%3A91%3A0%3A%3A%3A%3AP91_SECTION%3AMLCA_AMEND_A2","note":"Seafarers' hours of work and rest."},{"title":"Watchkeeping in a Warship c1913","url":"https://navymuseum.co.nz/explore/by-themes/pre-world-war-one/watchkeeping-in-a-warship-c1913/","note":"Shipboard duty periods, middle watch and two-hour dogwatches."},{"title":"Fatigue and Work","url":"https://www.cdc.gov/niosh/topics/fatigue/default.html","note":"Association of night shifts and extended working hours with fatigue and safety risks."}],"openQuestions":["The registry sense comes from a lexical source and merges many shift terms; should some be separate?"],"resources":{"spec":"/models/things/publications/thing-hours/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-hours/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-10-21T21:31:16Z","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 2026-10-22T10:59:03+00:00: completeness 1.00; sense: WordNet gloss; 4 live sources; review by codex: pass","interaction.properties":"A time period has no physical properties; durations are recorded under times."},"score":1.0}}