Recognises a measure without stated additivity
https://knobit.org/id/knobit/K-627
Also as Turtle · JSON-LD · RDF/XML · AI benchmark on Skilirium
| 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 grain and additivity in dimensional models |
| assessment criterion | Flags the deficient case and passes the acceptable one. Deficient: `arrears_ratio` summed across products; month-end `account_ledger_balance_amount` summed across months Acceptable: `comment` stating additive, semi-additive (not across time) or non-additive; numerator and denominator stored instead of the ratio (`PHY-014`) en |
| assessment method | skill-tests task: Loan application physical model on Snowflake (physical design anomaly skills) en |
| conforms to profile | https://oppekava.edu.ee/a/Knobitite_kirjeldamise_ja_seostamise_reeglid#LCG-KNOBIT-0.1 |
| dcterms:identifier | K-627 |
| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
| dcterms:source | Review checklist 04-physical, row 27; C&B ("Data Warehousing Design": choosing the facts); S&W 16.6 en |
| expected result | The measure and how it may be aggregated en |
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/knobit/data-modelling/06-physical/27 |
| rdfs:label | Recognises a measure without stated additivity en |
| schema:creativeWorkStatus | accepted |
| schema:isPartOf | Data modelling (DAMA-DMBOK2) |
| skos:altLabel | Measure without stated additivity (physical model) en |
| skos:definition | A semi-additive measure (a balance, an open count) or a non-additive one (a ratio) stored without saying how it may be aggregated. A BI tool sums it, and the result is wrong and looks right. en |
| skos:prefLabel | Recognises a measure without stated additivity en |
| target object | semi-additive or non-additive measure en |
Used by
| includes knobit | Designs a physical data model for the target platform without introducing anomalies |
|---|---|
| requires knobit | Design the physical data model |