What is OOD?

OOD stands for Object-Oriented Design. OOD is a method focus on simulation the object in a software system. In simple terms, OOD is a way to organize code for better logic or performance by the ways:

• Divide the system into the seperate objects: each object stands for one specific instance or method in the system.
• Identify the attributes and methods of each object.
• Establish relationships between objects so that they can interact and collaborate with each other.

OOD Pros

• Easy to maintain and extends
• Reusable code
• Easy debug
• Simulation real systems

OOD Cons

• More complexity
• Require an experience developer
• Code longer

What is SOLID?

SOLID stands for five principles of object-oriented design published by Robert C. Martin. The purpose of these principles is to make the code easy to understand, maintainable, and extendable.

Five principles are:

• Single responsibility principle (SRP)
• Open-close principle (OCP)
• Liskov Substitution Principle (LSP)
• Interface Segregation Principle (ISP)
• Dependency Inversion Principle (DIP)