FAQSFUSION

SOLID is an acronym for five principles of object-oriented programming and design. The SOLID principles are: Single Responsibility Principle (SRP) - a class should have only one reason to change Open-Closed Principle (OCP) - a class should be open for extension but closed for modification Liskov Substitution Principle (LSP) - objects of a superclass should be able to be replaced with objects of a subclass without affecting the correctness of the program Interface Segregation Principle (ISP) - a class should not be forced to implement interfaces it does not use. Dependency Inversion Principle (DIP) - high-level modules should not depend on low-level modules, but both should depend on abstractions. These principles were identified by Robert C. Martin in the early 2000s and are considered to be best practices for designing maintainable and extensible software systems.

The difference between principles and patterns are as follows. Principles and patterns are both important concepts in software development, but they are different in nature. Principles are general guidelines or rules that provide a broad understanding of how to design and build software systems. They are often abstract and can be applied to a wide range of situations. Examples of principles include SOLID principles, DRY (Don't Repeat Yourself) principle and KISS (Keep It Simple, Stupid) principle. Patterns, on the other hand, are specific solutions to common problems that occur in software development. They provide a detailed description of how to solve a particular problem, and they are usually written in the context of a specific programming language or platform. Examples of patterns include the Singleton pattern, the Factory pattern, and the Observer pattern. In summary, principles give you a general idea of how to design systems, while patterns give you specific solutions to co...