The Dependency Inversion Principle (DIP) is a key concept in software design that promotes the idea that high-level modules should not depend on low-level modules. Instead, both should depend on abstractions, such as interfaces or abstract classes. This approach helps to reduce the coupling between different parts of a system, making it easier to manage and modify. By adhering to DIP, developers can create more flexible and maintainable code. For example, if a high-level module needs to change, it can do so without affecting the low-level modules, as long as the abstractions remain consistent. This principle is part of the broader SOLID principles of object-oriented design.