Recognises a check measuring the wrong population
https://knobit.org/id/knobit/Q-313
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| Context functions | Result evaluation |
|---|---|
| Knobit creation methods | AI generated, human edited |
| Knobit types | Skill |
| LCG purposes | Assessing the learner's knowledge or skill state |
| LCG purposes | Selecting an assessment task or learning activity |
| action verb | Recognises en |
| applies knowledge | Explains the population, measure and threshold of a check |
| assessment criterion | Flags the deficient case and passes the acceptable one. Deficient: `BR-020: each loan account has a maturity date`; `DQ-018` over all of `account` with `expression: account_type_code <> 'LOAN' OR loan_maturity_date IS NOT NULL`. 60 % are current accounts and pass, so 25 % of loan accounts failing reports as 90 % Acceptable: `population: account_type_code = 'LOAN'`, `expression: loan_maturity_date IS NOT NULL`: the same failures now report as 75 % en |
| assessment method | skill-tests task: Loan application data quality rules on Snowflake (DQ rule anomaly skills) en |
| conforms to profile | https://oppekava.edu.ee/a/Knobitite_kirjeldamise_ja_seostamise_reeglid#LCG-KNOBIT-0.1 |
| dcterms:identifier | Q-313 |
| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
| dcterms:source | Review checklist 03-dq-rules (data-quality), row 13; DAMA UK 2013; Olson 2003; formerly data-modelling K-713 en |
| expected result | The population and the rows the rule actually governs en |
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/knobit/data-modelling/07-dq-rules/13 |
| rdfs:label | Recognises a check measuring the wrong population en |
| schema:creativeWorkStatus | accepted |
| schema:isPartOf | Data quality management (DAMA-DMBOK2) |
| skos:altLabel | Wrong population (data quality rule) en |
| skos:definition | The rows a check measures are not the rows the rule governs. Too wide, and rows the rule does not apply to pass trivially and dilute the failures; too narrow, and governed rows are never examined. The population is also the threshold's denominator, so a wrong population is a wrong threshold. en |
| skos:prefLabel | Recognises a check measuring the wrong population en |
| target object | population of a DQ check en |
Used by
| includes knobit | Derives data quality rules from the data rules and the physical model |
|---|---|
| includes knobit | Develop and deploy data quality operations: manage data quality rules |
| requires knobit | Derive data quality rules |