• A mnemonic acronym for five design principles intended to make software designs more understandable, flexible, and maintainable. SOLID refers to 1) the Single Responsibility Principle, 2) the Open–Closed Principle, 3) the Liskov Substitution Principle, 4) the Interface Segregation Principle, and 5) the Dependency Inversion Principle. SOLID represents a subset of software development principles promoted by Robert C. Martin. ← Wikipedia

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