<ul><li>SOLID is a set of five object-oriented design principles introduced by Robert C. Martin to improve code quality and make it scalable and maintainable.</li><li>The five SOLID principles are: Single Responsibility Principle (SRP), Open/Closed Principle (OCP), Liskov Substitution Principle (LSP), Interface Segregation Principle (ISP), and Dependency Inversion Principle (DIP).</li><li>A case study on applying SOLID principles to a report generator application.</li><li>The refactored version of the report generator application implements SOLID principles to improve code maintainability, scalability, and flexibility.</li></ul>

Software Design Principles with Ruby (Applying SOLID)

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