Recognises a stored derived or summary value
https://knobit.org/id/knobit/K-603
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| Context functions | Result evaluation |
|---|---|
| Knobit creation methods | AI generated, AI edited |
| 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 derived data and point-in-time snapshots |
| assessment criterion | Flags the deficient case and passes the acceptable one. Deficient: `loan.total_repayment_amount` kept by the application alongside `instalment`; an instalment is corrected and the total is not. `account_balance_monthly_total` reloaded nightly, with nothing saying as of when Acceptable: A generated column or a view; otherwise `derivation` naming the rule and the refresh mechanism, and a DQ rule comparing stored and computed values. A summary table carries its as-of timestamp 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-603 |
| dcterms:identifier | Q-382 |
| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
| dcterms:source | Review checklist 04-physical, row 3; C&B ("design representation of derived data"); E&N 17.7; S&W 12.6 en |
| dcterms:source | Shared-URI copy of data-modelling K-603 (Review checklist 04-physical (data-modelling), row 3; C&B ("design representation of derived data"); E&N 17.7; S&W 12.6) en |
| depends on knobit | Recognises a stored derivable attribute |
| expected result | The value, its inputs and the derivation or check it needs en |
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/knobit/data-modelling/06-physical/03 |
| rdfs:label | Recognises a stored derived or summary value en |
| schema:creativeWorkStatus | accepted |
| schema:isPartOf | Data modelling (DAMA-DMBOK2) |
| schema:isPartOf | Data quality management (DAMA-DMBOK2) |
| skos:altLabel | Stored derived or summary value (physical model) en |
| skos:definition | A column or table holding a value computed from other stored data, written separately from its inputs, so the two can disagree. The physical form of logical row 10. en |
| skos:prefLabel | Recognises a stored derived or summary value en |
| target object | stored computed column or table en |
Used by
| depends on knobit | Recognises a derived or copied column without a check |
|---|---|
| includes knobit | Designs a physical data model for the target platform without introducing anomalies |
| includes knobit | Derives data quality rules from the data rules and the physical model |
| requires knobit | Design the physical data model |
| requires knobit | Derive data quality rules |