Creational patterns make design become more flexible. They provide different ways to remove explicit references in the concrete classes from the code that needs to instantiate them. In other words, they create independency for objects and classes.

What is the purpose of behavioral design patterns?

In software engineering, behavioral design patterns are design patterns that identify common communication patterns among objects. By doing so, these patterns increase flexibility in carrying out communication.

Why do we use command patterns?

The command pattern should be used when: You need a command to have a life span independent of the original request, or if you want to queue, specify and execute requests at different times. You need undo/redo operations. The command's execution can be stored for reversing its effects.