@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-525 a edu:Knobit ;
    rdfs:label "Recognises a chasm trap"@en ;
    dcterms:identifier "K-525" ;
    dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
    dcterms:source "Review checklist 03-logical, row 25; Howe; C&B"@en ;
    skos:altLabel "Chasm trap (logical model)"@en ;
    skos:definition "A path exists, but an optional relationship on it breaks it for some instances, so they silently drop out of every query that follows the path."@en ;
    skos:prefLabel "Recognises a chasm trap"@en ;
    edu:actionVerb "Recognises"@en ;
    edu:appliesKnowledge knobit:K-569 ;
    edu:assessmentCriterion "Flags the deficient case and passes the acceptable one. Deficient: Branch 1:N Account Manager 1:N Account with Account → Account Manager optional: accounts opened online have no path to a branch and vanish from branch totals (row 24's fix can create this) Acceptable: A direct Account → Branch relationship, or a direct-channel branch, so every account reaches exactly one"@en ;
    edu:assessmentMethod "skill-tests task: Loan application logical model (normalisation anomaly skills)"@en ;
    edu:contextFunction <https://knobit.org/def/contextFunction/resultEvaluation> ;
    edu:creationMethod <https://knobit.org/def/creationMethod/aiGeneratedHumanEdited> ;
    edu:expectedResult "The path, the optional relationship on it, and the instances that drop out"@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 "chasm trap"@en ;
    schema:creativeWorkStatus "accepted" ;
    schema:isPartOf register:data-modelling .

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

knobit:K-569 rdfs:label "Explains the connection, fan and chasm traps"@en .