There is no per definition =), you arrange your app as you see fit.
The namespace of the below classes would follow the folder structure.
I usually create a folder structure like below. An example structure:
app\Account
User.php
UserInterface.php
Role.php
etc. etc.
Events
UseCases
Create
CreateAccountRequest.php
etc. etc.
Sign in to participate in this thread!
The Laravel portal for problem solving, knowledge sharing and community building.