entiteettirelaatio
Entiteettirelaatio refers to the relationship between two or more entities in a database or information model. The concept originates from the entity‑relationship (ER) model introduced by Peter Chen in the early 1970s, which is widely used in database design to illustrate how data is interconnected.
In a typical ER diagram, an entity is represented by a rectangle and relationships by diamonds or
Entiteettirelaatio is not limited to relational databases; it is also employed in semantic web contexts, ontologies,
Understanding entiteettirelaatio is essential for efficient data modeling, as it ensures accurate representation of real‑world constraints,