design-principles

Refactoring code relies on design principles like SOLID, GRASP, DRY, KISS, and YAGNI to translate structural rules into actionable change strategies. These principles resolve tension between correctness and simplicity by mapping specific violations, such as SRP issues, directly to refactoring methods like Extract Class.

Spotting SOLID and DRY violations during code review involves identifying high coupling and low cohesion. Reviewers translate these structural principle violations into maintainability concerns by applying quick maps, such as replacing conditionals with polymorphism for OCP breaches or extracting methods for Law of Demeter infractions.

Resolving conflicts between SOLID, DRY, and KISS principles requires applying a practical prioritization order to maintainable change strategies. This approach evaluates the tension between low coupling and simplicity, ensuring that design tenets like composition over inheritance and immutability are balanced effectively.

The best way to map SOLID violations to refactoring techniques is using a principle-to-refactoring quick map. For example, SRP maps to Extract Class or Move Method, while OCP maps to Replace Conditional with Polymorphism, directly translating design flaws into maintainable code changes.

Use the Law of Demeter to reduce tight coupling by limiting method chaining, while applying GRASP patterns guides overall responsibility assignment in software design. Both principles support low coupling and encapsulation, but the Law of Demeter specifically targets object interaction boundaries.