5. etapp: Loogilise andmemudeli tuletamine
Kompetentsi Andmete modelleerimine knobit · K-512 · Oskus
Recognises independent multi-valued facts in one entity
Mida see tähendab
One entity records two or more independent lists about the same thing, so each new item in one list needs a row for every item in the other.
Kuidas seda hinnatakse
Flags the deficient case and passes the acceptable one. Deficient: Branch Capability (Branch, Product, Language), where the products a branch may sell and the languages its staff serve in are unrelated Acceptable: Branch Product Authorisation (Branch, Product) and Branch Service Language (Branch, Language)
Tugineb
- Explains multivalued dependency and fourth normal formK-558 · Teadmine
Vajalik
- Puudub