For any application that has more than minimal complexity, you will want to give some users access to specific information and functions, and you will want to deny that access to others. For example, you might want to give an admin user the ability to delete an order, but you don't want anyone else to be able to do that.
Types of control
Authorisation
The authorisation API consists of two main classes that enable you to add permission checks to your custom component.
For any application that has more than minimal complexity, you will want to give some users access to specific information and functions, and you will want to deny that access to others. For example, you might want to give an admin user the ability to delete an order, but you don't want anyone else to be able to do that.