Er Model. Diagrammatic representation of entity types. The basic concept of the er model is the entity type that is used to represent a group of objects in the real world with the same properties.
A uniquely identifiable object of an entity type. An er model is used to represent real world objects. In er diagram relationship type is represented by a diamond and connecting the entities with lines.
An er model is used to represent real world objects.
An entity can be a real world object either animate or inanimate that can be easily identifiable. The er model represents real world entities and the relationships between them. In er diagram relationship type is represented by a diamond and connecting the entities with lines. It develops a conceptual design for the database.
