What is the importance of coupling and cohesion in software design?

What is the importance of coupling and cohesion in software design?

Coupling refers to how closely connected different modules are, while cohesion measures how closely related the functions within a module are. High cohesion and low coupling are ideal for maintainable and scalable software.

Can you explain why high cohesion is beneficial?

High cohesion means that the components of a module are focused on a single task, making it easier to understand, test, and maintain. It enhances code readability and reduces the risk of bugs.

What are some examples of low coupling?

Examples of low coupling include using interfaces or abstract classes, which allow modules to interact without being tightly bound to each other. This makes it easier to change one module without affecting others.

How can I achieve high cohesion in my code?

To achieve high cohesion, ensure that each module or class has a single responsibility and that its methods are closely related to that responsibility. Refactoring code to group related functions can also help.