@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-309 a edu:Knobit ;
    rdfs:label "Recognises a check unable to fail"@en ;
    dcterms:identifier "Q-309" ;
    dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
    dcterms:source "Review checklist 03-dq-rules (data-quality), row 9; Witt 2012; DAMA UK 2013; formerly data-modelling K-709"@en ;
    skos:altLabel "Check that cannot fail (data quality rule)"@en ;
    skos:definition "A check of something the database already guarantees on that target — completeness of a `NOT NULL` column on Postgres, uniqueness of an enforced primary key — or of a definitional rule that no data can break. It always passes, inflates the quality score, and teaches people that DQ results are decoration."@en ;
    skos:prefLabel "Recognises a check unable to fail"@en ;
    edu:actionVerb "Recognises"@en ;
    edu:appliesKnowledge knobit:K-356,
        knobit:Q-252 ;
    edu:assessmentCriterion "Flags the deficient case and passes the acceptable one. Deficient: `DQ-002: IBAN present`, `account_identifier NOT NULL` on Postgres, threshold 100 %, green forever Acceptable: Removed; or, where the constraint is enforced on one target and not another, scoped in its `comment` to the target that needs it. A stored derivation is checked as a stored column (row 4), not as a definition"@en ;
    edu:assessmentMethod "skill-tests task: Loan application data quality rules on Snowflake (DQ rule anomaly skills)"@en ;
    edu:contextFunction <https://knobit.org/def/contextFunction/resultEvaluation> ;
    edu:creationMethod <https://knobit.org/def/creationMethod/aiGeneratedHumanEdited> ;
    edu:expectedResult "The check and its removal or rescoping"@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 "check of something already guaranteed"@en ;
    schema:creativeWorkStatus "accepted" ;
    schema:isPartOf register:data-quality .

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

knobit:K-356 rdfs:label "Explains rule enforcement mechanisms and platform enforcement"@en .

knobit:Q-252 rdfs:label "Explains alethic and deontic modality of rules"@en .