Recognises undeclared subtype constraints
https://knobit.org/id/knobit/K-519
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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 supertype and subtype constraints |
| assessment criterion | Flags the deficient case and passes the acceptable one. Deficient: Party → Person, Organisation, with nothing saying whether a sole trader (FIE) is one, the other, both or neither Acceptable: Stated as disjoint and total; FIE modelled as a Person with a business role; the discriminator's value set lists exactly the subtypes (`LOG-013`) en |
| assessment method | skill-tests task: Loan application logical model (normalisation anomaly skills) en |
| conforms to profile | https://oppekava.edu.ee/a/Knobitite_kirjeldamise_ja_seostamise_reeglid#LCG-KNOBIT-0.1 |
| dcterms:identifier | K-519 |
| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
| dcterms:source | Review checklist 03-logical, row 19; E&N 4.3 en |
| expected result | The supertype and the undeclared disjointness or completeness en |
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/knobit/data-modelling/05-logical/19 |
| rdfs:label | Recognises undeclared subtype constraints en |
| schema:creativeWorkStatus | accepted |
| schema:isPartOf | Data modelling (DAMA-DMBOK2) |
| skos:altLabel | Undeclared subtype constraints (logical model) en |
| skos:definition | A supertype with subtypes and nothing saying whether an instance can belong to more than one subtype (disjoint or overlapping) or to none (total or partial). en |
| skos:prefLabel | Recognises undeclared subtype constraints en |
| target object | supertype without declared subtype constraints en |
Used by
| depends on knobit | Recognises rolled-down subtypes losing supertype constraints |
|---|---|
| followed by | Introduces subtypes for attributes applying to only some instances |
| includes knobit | Derives a normalised logical data model and traces anomalies to their causes |
| requires knobit | Derive the logical data model |