Recognises history kept without its constraints checked
https://knobit.org/id/knobit/K-705
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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 rule enforcement mechanisms and platform enforcement |
| applies knowledge | Explains history strategies and validity-period conventions |
| assessment criterion | Flags the deficient case and passes the acceptable one. Deficient: `dim_account` with `valid_from`/`valid_to`, unique on `(account_identifier, valid_from)` only; two overlapping versions load, and a payment on the overlap is counted twice Acceptable: Two set checks: no overlapping periods per `account_identifier`, exactly one `is_current = TRUE` per `account_identifier`; `dimension: consistency`, threshold 100 % 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 | K-705 |
| dcterms:identifier | Q-305 |
| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
| dcterms:source | Review checklist 03-dq-rules (data-quality), row 5; DDL 2014 ch. 13; this skill (06-physical.md); formerly data-modelling K-705 en |
| dcterms:source | Shared-URI copy of data-quality Q-305 (Review checklist 03-dq-rules (data-quality), row 5; DDL 2014 ch. 13; this skill (06-physical.md)) en |
| depends on knobit | Recognises inconsistent validity periods in a versioned table |
| expected result | The missing overlap and one-current checks en |
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/knobit/data-modelling/07-dq-rules/05 |
| rdfs:label | Recognises history kept without its constraints checked en |
| schema:creativeWorkStatus | accepted |
| schema:isPartOf | Data modelling (DAMA-DMBOK2) |
| schema:isPartOf | Data quality management (DAMA-DMBOK2) |
| skos:altLabel | History kept, its constraints not checked (data quality rule) en |
| skos:definition | A table with validity periods or a current-row flag, on a platform where no key can express "no two versions of one key overlap" or "exactly one current row per key", and no DQ rule checks either. Point-in-time joins then return two rows or none. en |
| skos:prefLabel | Recognises history kept without its constraints checked en |
| target object | versioned table on a non-enforcing platform en |
Used by
| 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 |
| includes knobit | Develop and deploy data quality operations: manage data quality rules |
| requires knobit | Design the physical data model |
| requires knobit | Derive data quality rules |