What does "Dependency Inversion Principle" mean in programming?
Dependency Inversion Principle is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
The D in SOLID. High-level modules should not depend on low-level modules — both should depend on abstractions (interfaces). This allows you to swap implementations (e.g. MySQLDatabase for PostgreSQLDatabase) without changing business logic. Implemented in practice through dependency injection.
Example
"The OrderService depends on a PaymentGateway interface, not on Stripe directly. We can swap Stripe for PayPal without touching the service."
Can you put this sentence in the right order?
Keep building your technical English
You just looked up what this word means. Lingua-e turns vocabulary like this into full practice: fill-in-the-blanks, listening, and real developer conversations.
Practice this for free