Complexity Visualized

Dependency Injection

Dependency Injection:The Processor is dealing with  hats,the hats represents the interface. the composer (example DI containers) is providing the real implementation before calling the processor

Reference

Wikipedia-https://en.wikipedia.org/wiki/Dependency_injection    

Interface Segregation Principle

Interface Segregation: Split the large interface into smaller units based upon clients requirements and architectural requirements.

Reference:

Wikipedia-https://en.wikipedia.org/wiki/Interface_segregation_principle

Liskov Substitution Principle

Liskov Substitution Principle: When you are creating derived class it should  honor the base relationship with clients.

Reference:

Wikipedia-https://en.wikipedia.org/wiki/Liskov_substitution_principle

Open Closed Principle

Open Closed Principle-Do not allow future changes to existing classes and assemblies. If there is a change required in future, create new code that can extend the existing code.

Reference:

Wikipedia-https://en.wikipedia.org/wiki/Open/closed_principle