Dependency Inversion
Depend upon abstractions, not concretions. High-level modules should not depend on low-level modules; both should depend on abstractions.
Dependency Inversion: Depend on Abstractions
Why high-level policy should never depend on low-level details, and how interfaces flip the arrow.
Dependency Inversion in Production: Ports and Adapters
Hexagonal architecture, testability, and keeping the domain clean of infrastructure.
Advanced Dependency Inversion: Modules and Compile-Time Arrows
Module boundaries, preventing dependency cycles, and architecture tests that enforce the arrows.
Dependency Inversion: Review & Mastery Quiz
Scenario questions on abstraction direction, ports, and module boundaries.
Free Books & Guides
Official Documentation
Video Courses
Dependency Inversion — Explained (YouTube)
A video explanation of the Dependency Inversion principle with practical examples.
freeCodeCamp — Software Architecture Course
A comprehensive course covering software architecture principles, patterns, and best practices.
ByteByteGo — Distributed Systems
High-quality animated explanations of system design principles, distributed systems, and architecture patterns.