5. etapp: Loogilise andmemudeli tuletamine
Kompetentsi Andmete modelleerimine knobit · K-521 · Oskus
Recognises an unresolved many-to-many relationship
Mida see tähendab
An N:M relationship left in the model. Its facts (dates, shares, roles) have nowhere to live, and they are usually requirements not yet captured.
Kuidas seda hinnatakse
Flags the deficient case and passes the acceptable one. Deficient: Account N:M Party "is held by", with holder role and start date in nobody's attributes Acceptable: Account Holder associative entity with holder role and start date (`LOG-010`)
Tugineb
- Explains relationship cardinality and optionalityK-567 · Teadmine
Vajalik
- Puudub