Sanakirja
Tekoälykääntäjä
Synonyymit
- (tietojenkäsittely)entity-relationship
Lyhenteet
- (tietojenkäsittely) ER
| Kieli | Käännökset |
|---|---|
| suomi | olio-suhde-malli, avainsuhteiden malli, ER-malli |
Määritelmät
Substantiivi
- an abstract conceptual representation of structured data
Taivutusmuodot
| Monikko | entity-relationship models |
an abstract conceptual representation of structured data
An entity–attribute-relationship diagram for an MMORPG using Chen's notation
an abstract conceptual representation of structured data
Two related entities shown using Crow's Foot notation. In this example, an optional relationship is shown between Artist and Song; the symbol composed of branching lines, closest to the song entity represents "zero, one, or many", whereas a song has "one and only one" Artist, emphasized by the symbol composed of parallel lines. The former is therefore read as, an Artist (can) perform(s) "zero, one, or many" song(s).