@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix edu: <https://knobit.org/def/> .
@prefix knobit: <https://knobit.org/id/knobit/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix register: <https://knobit.org/id/register/> .
@prefix schema: <https://schema.org/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

knobit:Q-218 a edu:Knobit ;
    rdfs:label "Recognises a cardinality rule stated from one end only"@en ;
    dcterms:identifier "Q-218" ;
    dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
    dcterms:source "Review checklist 02-data-rules (data-quality), row 18; formerly data-modelling K-318"@en ;
    skos:altLabel "One direction only (data rule)"@en ;
    skos:definition "A cardinality rule stated from one end, leaving the other end unconstrained. The commonest cause of duplicates."@en ;
    skos:prefLabel "Recognises a cardinality rule stated from one end only"@en ;
    edu:actionVerb "Recognises"@en ;
    edu:appliesKnowledge knobit:K-567 ;
    edu:assessmentCriterion "Flags the deficient case and passes the acceptable one. Deficient: \"Each account has exactly one IBAN\" (nothing stops two accounts sharing one) Acceptable: Both: \"each account has exactly one IBAN\" and \"each IBAN is held by at most one account\""@en ;
    edu:assessmentMethod "skill-tests task: Loan application data rules (data rule anomaly skills)"@en ;
    edu:contextFunction <https://knobit.org/def/contextFunction/resultEvaluation> ;
    edu:creationMethod <https://knobit.org/def/creationMethod/aiGeneratedHumanEdited> ;
    edu:expectedResult "The unconstrained end and the rule for it"@en ;
    edu:graphRelevance <https://knobit.org/def/graphRelevance/learnerState>,
        <https://knobit.org/def/graphRelevance/taskSelection> ;
    edu:knobitType <https://knobit.org/def/knobitType/skill> ;
    edu:targetObject "one-directional cardinality rule"@en ;
    schema:creativeWorkStatus "accepted" ;
    schema:isPartOf register:data-quality .

edu:Knobit rdfs:label "Knobit"@en,
        "Knobit"@et .

knobit:K-567 rdfs:label "Explains relationship cardinality and optionality"@en .