Entities:

1.Naracka (Order) 2.Faktura (Invoice) 3.Firma (Company) 5.IzrabotkaPlan (Production Plan) 6.Artikli (Articles)

Naracka:

NarackaID (Primary Key) Kolicina (Quantity) Datum (Date)

Artikli:

ArtiklID (Primary Key) EdMera (Unit of Measure) Cena (Price) Stapka (Rate)

Firma:

FirmaID (Primary Key) Adresa (Address) Broj (Number) Faktura: FakturaID (Primary Key) IzrabotkaPlan: NarackaID (Primary Key) DatumStart (Start Date) DatumEnd (End Date)

Zaliha:

DokumentID (Primary Key) ArtiklID Kolicina (Quantity)

Relationships:

Naracka to Artikli (1:N) Firma to Naracka (1:N) Faktura to Artikli (1:N) IzrabotkaPlan to Naracka (1:N)