What is the role and significance of dependency management in software development?

Dependency management in software development, including in Flutter, plays a key role for:

• Code reuse — allows easy integration and use of third-party libraries and packages.
• Ease of maintenance and updates — dependencies can be updated centrally, simplifying version control.
• Isolation and testability — dependency injection (DI) helps in writing modular and testable components.

In Flutter, dependency management is usually handled through the pubspec.yaml file, where packages are specified, as well as with special tools and patterns (e.g., Provider, GetIt) for dependency injection into the application code.