Answer:
According to the Protected Variations principle in the GRASP (General Responsibility Assignment Software Patterns) approach to object-oriented design, adding an abstraction layer can help you prevent changes to one item from having an adverse effect on other objects in the system.
In particular, you should design base classes or abstract interfaces that specify how various system components communicate with one another. By separating the objects from direct dependence on one another, these abstractions serve as a barrier of defense. In this manner, any changes made to one object's implementation won't immediately impact the other objects that depend on it.
Respecting the Protected Variations principle encourages a design that is more adaptive and flexible. This makes system maintenance and modification easier because changes made to one component are less likely to have an impact on the entire codebase. It also promotes a clearer separation of concerns and makes it easier to apply design patterns like dependency injection, which improve the system's decoupling and flexibility.
Step-by-step explanation: