Is it necessary to adhere to the Dependency Inversion principle when designing a system?

The Dependency Inversion Principle (DIP) is one of the five SOLID principles, which recommends that high-level modules should not depend on low-level modules directly, but interact through abstractions.

Is it mandatory to adhere to it? Ideally — yes, especially in large and complex systems where maintainability, extensibility, and testability are critical. DIP helps reduce component coupling and makes it easier to replace or modify parts of the system without global changes.

However, in small projects or simple scripts, strict implementation of DIP can be excessive and complicate the code. It is important to evaluate the balance between architectural purity and practicality.

In conclusion: adhering to the dependency inversion principle is recommended for creating flexible and scalable systems, but it is not always necessary — it depends on the context and project requirements.