Recognises overlapping entities

K-527 · Skill knobit · Activity: Derive the logical data model · Competence: Data modelling

Two entities whose meanings overlap, so the same thing can be recorded in both, and a change reaches only one.

Can AI do this?

Not tested yet

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What it looks like in practice

Expected result: The two entities and the things that can be recorded in both

How it is assessed: Flags the deficient case and passes the acceptable one. Deficient: Retail Customer and Account Holder Party as separate kernel entities with the same attributes Acceptable: One Party entity; customer and account holder as roles. Test: could one instance belong to both entities with the same key and meaning?

Also known as: Overlapping entities (logical model)

Related knobits

Builds on

• K-570 Explains an entity type as the realisation of one business concept

All 56 knobits of Derive the logical data model.

Source: Review checklist 05-logical, row 27; Date & McGoveran 1994