Software Dependency Inversion Principle

A Software Dependency Inversion Principle is a software SOLID principle that requires Software Dependency Inversion Principle High-Level Modules to depend on software dependency inversion principle abstractions rather than software dependency inversion principle concrete implementations.

• AKA: DIP, Dependency Inversion, Abstraction Dependency Principle.
• Context:
  • It can typically reverse Software Dependency Inversion Principle Traditional Dependency from software dependency inversion principle high-to-low direction to software dependency inversion principle abstraction-based direction.
  • It can typically decouple Software Dependency Inversion Principle Policy Layers from software dependency inversion principle implementation details.
  • It can typically enable Software Dependency Inversion Principle Implementation Flexibility through software dependency inversion principle interface contracts.
  • It can typically support Software Dependency Inversion Principle Testing via software dependency inversion principle mock implementations.
  • It can typically facilitate Software Dependency Inversion Principle Module Independence through software dependency inversion principle stable abstractions.
  • ...
  • It can often prevent Software Dependency Inversion Principle Ripple Effects when software dependency inversion principle low-level changes occur.
  • It can often enable Software Dependency Inversion Principle Plugin Architectures through software dependency inversion principle abstraction boundarys.
  • It can often support Software Dependency Inversion Principle Framework Design via software dependency inversion principle extension points.
  • It can often promote Software Dependency Inversion Principle Reusability across software dependency inversion principle different contexts.
  • ...
  • It can range from being Strict Software Dependency Inversion Principle to being Relaxed Software Dependency Inversion Principle, depending on its software dependency inversion principle enforcement level.
  • It can range from being Interface-Based Software Dependency Inversion Principle to being Abstract-Class-Based Software Dependency Inversion Principle, depending on its software dependency inversion principle abstraction type.
  • ...
  • It can enable Software Clean Architecture Pattern through software dependency inversion principle layer dependencys.
  • It can support Software Dependency Injection Pattern via software dependency inversion principle abstraction injection.
  • It can facilitate Software Hexagonal Architecture Pattern through software dependency inversion principle port definitions.
  • ...
• Examples:
  • Software Dependency Inversion Principle Implementations, such as:
    • Software Dependency Inversion Principle Repository Pattern where software dependency inversion principle business logic depends on software dependency inversion principle repository interface.
    • Software Dependency Inversion Principle Service Layer Pattern having software dependency inversion principle controllers depend on software dependency inversion principle service abstractions.
    • Software Dependency Inversion Principle Plugin System where software dependency inversion principle core system depends on software dependency inversion principle plugin interfaces.
  • Software Dependency Inversion Principle Violations (as learning examples), such as:
    • Software Dependency Inversion Principle Direct Database Access where software dependency inversion principle business layer directly uses software dependency inversion principle database classes.
    • Software Dependency Inversion Principle Framework Coupling having software dependency inversion principle domain logic depend on software dependency inversion principle specific frameworks.
    • Software Dependency Inversion Principle Concrete Inheritance where software dependency inversion principle high-level classes extend software dependency inversion principle low-level classes.
  • Software Dependency Inversion Principle Refactorings, such as:
    • Software Dependency Inversion Principle Extract Interface Refactoring creating software dependency inversion principle abstractions from software dependency inversion principle concrete classes.
    • Software Dependency Inversion Principle Dependency Injection Refactoring replacing software dependency inversion principle direct instantiation with software dependency inversion principle abstraction injection.
    • Software Dependency Inversion Principle Layer Separation Refactoring introducing software dependency inversion principle abstraction layers between software dependency inversion principle modules.
  • ...
• Counter-Examples:
  • Software Concrete Dependency Pattern, which creates software concrete dependency direct references between software concrete dependency implementation classes.
  • Software Bottom-Up Design, which builds software bottom-up design high-level components dependent on software bottom-up design low-level components.
  • Software Tight Coupling Pattern, which allows software tight coupling bidirectional dependency between software tight coupling concrete modules.
• See: Software SOLID Principles, Software Design Principle, Software Clean Architecture Pattern, Software Abstraction Principle, Software Dependency Injection Pattern.

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