{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.decade","code":"thing-q39911","url":"https://ver.cy/models/thing/q39911/","name":"decade","alternateNames":["international decade","themed decade","aughts/noughties"],"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.TME"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A period of ten years, either any ten-year span or a calendar decade such as the 1990s; international decades are also designated by the UN for themes.","purpose":"Let an agent handle decades by definition, boundaries, naming and designated international decades.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Ten-year period","Calendar decades start with 0 by common convention","Ordinal decades start with 1","Used in themed international decades"],"structure":{"bundles":[{"id":"definition","name":"Definition","description":"Which decade.","layers":[{"id":"boundaries","name":"Boundaries","description":"Start and end.","findings":[{"id":"boundaries-finding","name":"Boundaries","description":"Boundaries.","questions":[{"text":"Which years does the decade cover under the convention used?","kind":"definition"},{"text":"Is it calendar or ordinal?","kind":"boundary"}]}]},{"id":"naming","name":"Naming","description":"Names.","findings":[{"id":"naming-finding","name":"Naming","description":"Naming.","questions":[{"text":"How is the decade named in this language or region?","kind":"definition"},{"text":"Is an informal name used?","kind":"definition"}]}]}]},{"id":"history","name":"History","description":"Decades as periods.","layers":[{"id":"characterisation","name":"Characterisation","description":"Themes.","findings":[{"id":"characterisation-finding","name":"Characterisation","description":"Characterisation.","questions":[{"text":"How do historians characterise the decade?","kind":"provenance"},{"text":"Are such labels oversimplified?","kind":"boundary"}]}]},{"id":"events","name":"Events","description":"Key events.","findings":[{"id":"events-finding","name":"Events","description":"Key events.","questions":[{"text":"Which events are commonly associated with it?","kind":"provenance"},{"text":"From which sources?","kind":"provenance"}]}]}]},{"id":"international","name":"International","description":"UN decades.","layers":[{"id":"designation","name":"Designation","description":"Themes.","findings":[{"id":"designation-finding","name":"Designation","description":"UN decades.","questions":[{"text":"Which international decade is in effect for this theme?","kind":"provenance"},{"text":"What are its goals?","kind":"provenance"}]}]},{"id":"progress","name":"Progress","description":"Outcomes.","findings":[{"id":"progress-finding","name":"Progress","description":"Progress.","questions":[{"text":"What progress has been reported?","kind":"provenance"},{"text":"By which body?","kind":"provenance"}]}]}]},{"id":"data","name":"Data","description":"Statistics.","layers":[{"id":"comparison","name":"Comparison","description":"By decade.","findings":[{"id":"comparison-finding","name":"Comparison","description":"Decadal comparison.","questions":[{"text":"How do values compare across decades?","kind":"measurement"},{"text":"Did definitions change?","kind":"boundary"}]}]},{"id":"averages","name":"Averages","description":"Climate normals.","findings":[{"id":"averages-finding","name":"Averages","description":"Averages.","questions":[{"text":"Are decadal averages or 30-year normals used?","kind":"definition"},{"text":"Why?","kind":"definition"}]}]}]}]},"agentConduct":{"may":["State which years a decade covers and which convention is being used.","Describe the themes of designated international decades from the designating body."],"mustNot":["Mix calendar decades and arbitrary ten-year spans without saying which is meant.","Reduce a decade's history to stereotypes that misrepresent the people who lived it."],"requiresHuman":["Choosing the period for an official statistic or report that others rely on."]},"ethics":{"considerations":["Summaries of a decade shape collective memory and can erase minorities and hardships.","Period boundaries change what trends appear in data."],"affectedParties":["Readers and students","People whose history is summarised"]},"owners":{"steward":"Nobody owns the concept; international bodies designate themed decades.","roles":[],"masterSystems":[]},"relations":[{"target":"Q135268506","type":"parent","note":"registry parent class"},{"target":"Q186081","type":"parent","note":"registry parent class"},{"target":"time interval and period","type":"related","note":"category"},{"target":"century","type":"related","note":"larger period"},{"target":"year","type":"contains","note":"units"},{"target":"history and statistics","type":"related","note":"applications"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.decade","Wikidata: Q39911 (https://www.wikidata.org/wiki/Q39911)"]},"properties":{"applicability":"not-applicable","items":["length: 10 years"]},"recognition":{"applicability":"optional","items":["Names such as the 1980s","Informal names such as the noughties","UN international decades","Not physical; a span of ten years."]},"capabilities":{"applicability":"required","items":["define decade boundaries","name decades correctly","find UN international decades","compare data by decade"]},"hazards":{"applicability":"required","items":["Boundary disputes such as 2010 vs 2011","Informal names differing by region"]},"interfaces":{"applicability":"required","items":["UN General Assembly resolutions on international decades"]},"context":{"applicability":"required","items":["Grouping time for history, statistics and planning.","calendar decades","ordinal decades","rolling ten-year periods","UN international decades"]}},"sources":[{"title":"Wikidata item Q39911: decade","url":"https://www.wikidata.org/wiki/Q39911","note":"identity and sense of the item"},{"title":"Wikipedia: Decade","url":"https://en.wikipedia.org/wiki/Decade","note":"general description of the item"}],"openQuestions":["Should named decades be separate entries?","How should UN decades be linked?","How should boundary conventions be recorded?"],"resources":{"spec":"/models/things/publications/thing-q39911/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q39911/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T08:54:20Z","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}}