Creating associations between entities to relate objects

In this section, you will start to explore associations between entities. Often there is a relationship between two different entities. Perhaps there are orders associated with inventory items or customers. Maybe you have multiple addresses or phone numbers associated with a single customer object. The way you look at the app's data model will help you understand how different entities are related.

Associations are used to represent the relationship between two entities. In Mendix Studio Pro, an association is drawn by clicking the edge of one entity and dragging a line to the edge of another entity or by editing the Associations tab of the Entity properties dialog window. Associations have a property known as multiplicity. This property describes the relationship between entities in terms of one-to-one, one-to-many, or many-to-many. Multiplicity is shown in Mendix with a one (1) or a star (*).

The relationship between...