@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:K-536 a edu:Knobit ;
    rdfs:label "Introduces subtypes for attributes applying to only some instances"@en ;
    dcterms:identifier "K-536" ;
    dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
    dcterms:source "Stage 5 reference (references/05-logical.md) and the skill-tests logical-model task"@en ;
    skos:definition "Replaces optional attributes that are optional only because they do not apply to some instances with subtypes, so a null no longer means two things."@en ;
    skos:prefLabel "Introduces subtypes for attributes applying to only some instances"@en ;
    edu:actionVerb "Introduces"@en ;
    edu:appliesKnowledge knobit:K-566 ;
    edu:assessmentCriterion "Each attribute sits on the subtype it applies to and can be mandatory there; the exclusivity is written down"@en ;
    edu:assessmentMethod "skill-tests task: Loan application logical model (normalisation anomaly skills)"@en ;
    edu:contextFunction <https://knobit.org/def/contextFunction/actionAdjustment> ;
    edu:creationMethod <https://knobit.org/def/creationMethod/aiGenerated> ;
    edu:expectedResult "Subtypes carrying the attributes that apply to them, each mandatory where it applies"@en ;
    edu:followedBy knobit:K-519 ;
    edu:graphRelevance <https://knobit.org/def/graphRelevance/learnerState>,
        <https://knobit.org/def/graphRelevance/taskSelection> ;
    edu:knobitType <https://knobit.org/def/knobitType/skill> ;
    edu:targetObject "subtypes for inapplicable attributes"@en ;
    schema:creativeWorkStatus "accepted" ;
    schema:isPartOf register:data-modelling .

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

knobit:K-519 rdfs:label "Recognises undeclared subtype constraints"@en .

knobit:K-566 rdfs:label "Explains supertype and subtype constraints"@en .