5. etapp: Loogilise andmemudeli tuletamine
Kompetentsi Andmete modelleerimine knobit · K-560 · Teadmine
Explains sixth normal form for temporal data
Mida see tähendab
Attributes that change independently over time get their own validity periods.
Kuidas seda hinnatakse
Groups the attributes of a sample history entity by when they change and justifies the split
Tugineb
- Explains join dependency and fifth normal formK-559 · Teadmine
Vajalik
- Recognises independently changing histories in one entityK-520 · Oskus
- Explains time-based modelling schemesK-908 · Teadmine