Models represent data that is either stored or passed around. Generally speaking, models do not need to be connected to a database. In some cases, you may need a model just as another representation of data you have in another model already.

On the other hand, models are also a great tool to load data in and out of the database. One of the most desired and even most powerful features of Vapor is its Object-Relational Mapping (ORM): Fluent.

In the next two sections, you will explore Fluent as well as its supported databases.