What are some examples of cohesion in software design?

What are some examples of cohesion in software design?

Cohesion in software design refers to how closely related and focused the responsibilities of a single module are. High cohesion is desirable. Examples include: 1. A class that handles all user authentication tasks. 2. A module that processes all payment transactions. 3. A function that calculates the total price of items in a shopping cart.

Can you explain why high cohesion is important?

High cohesion is important because it makes the system easier to understand, maintain, and reuse. When a module has a single responsibility, it reduces complexity and enhances clarity.

What are some real-world applications of high cohesion?

Real-world applications include microservices architecture, where each service is responsible for a specific business function, and libraries that provide focused functionalities, like a math library for calculations.

How does cohesion differ from coupling?

Cohesion refers to how closely related the functionalities within a module are, while coupling refers to how dependent modules are on each other. High cohesion and low coupling are ideal for software design.