@prefix activity: <https://knobit.org/id/activity/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix edu: <https://knobit.org/def/> .
@prefix knobit: <https://knobit.org/id/knobit/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <https://schema.org/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

activity:QO-4 a edu:Activity ;
    rdfs:label "Profile and assess data quality"@en,
        "Andmeprofiilimine ja andmekvaliteedi hindamine"@et ;
    dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
    rdfs:comment "Stage 4 (Profiling and assessment) of the data-quality skill: produces 04-profiling/assessment.yaml and passes the stage's validation gate."@en ;
    owl:sameAs <https://bitbucket.org/reffa/ontology/id/activity/data-quality/04-profiling-assessment> ;
    edu:requiresKnobit knobit:K-655,
        knobit:Q-1901,
        knobit:Q-357,
        knobit:Q-401,
        knobit:Q-402,
        knobit:Q-403,
        knobit:Q-404,
        knobit:Q-405,
        knobit:Q-406,
        knobit:Q-451,
        knobit:Q-452,
        knobit:Q-453 ;
    schema:position 4 .

edu:Activity rdfs:label "Activity"@en,
        "Tegevusnäitaja"@et .

knobit:K-655 rdfs:label "Explains null semantics and three-valued logic"@en .

knobit:Q-1901 rdfs:label "Explains a pooled rate as the weighted mean of its population rates"@en .

knobit:Q-357 rdfs:label "Explains segmented data quality reporting"@en .

knobit:Q-401 rdfs:label "Recognises a null counted as missing where the element does not apply"@en .

knobit:Q-402 rdfs:label "Recognises a profiling sample excluding the problem population"@en .

knobit:Q-403 rdfs:label "Recognises a quality measurement labelled with a characteristic it does not test"@en .

knobit:Q-404 rdfs:label "Recognises a placeholder value counted as present"@en .

knobit:Q-405 rdfs:label "Recognises a quality ratio with no population, numerator or denominator"@en .

knobit:Q-406 rdfs:label "Recognises one quality ratio over differing populations"@en .

knobit:Q-451 rdfs:label "Explains the ISO/IEC 25012 data quality characteristics"@en .

knobit:Q-452 rdfs:label "Explains data profiling methods"@en .

knobit:Q-453 rdfs:label "Explains ISO/IEC 25024 data quality measures"@en .