Discover object-oriented principles, design patterns, and problem-solving by designing real-world complex systems.

Computer Science Bootcamp

Object-oriented analysis and design (OOAD) is a software engineering approach that involves designing systems using object-oriented concepts such as encapsulation, inheritance, and polymorphism. It results in efficient code organization, sounder problem-solving, and improved system scalability. Learning OOAD provides developers with the skills to design feature-rich, adaptable, and high-quality software systems. This module briefly covers OOAD, including a quick refresher of OOP basic building blocks such as encapsulation, abstraction, inheritance, and polymorphism, followed by object-oriented design principles, design patterns, and real-world problem-solving. By the end of this module, we’ll know how these building blocks can be utilized to design real-world software systems, such as a meeting scheduler and a restaurant management system.

Object-Oriented Analysis and Design

In this lesson, we will learn about the influence of coupling and cohesion and their relationship.

## Relationship between Coupling and Cohesion

First, let’s compare the benefits of the modules that have high cohesion and low coupling in the table below:

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This show that both coupling and cohesion are related to each other, there is a relationship that links them both. High cohesion and low coupling are desirable qualities in software design. When modules are highly cohesive, it suggests that they are focused and well-defined with a clear purpose. Low coupling indicates that modules are independent, making them easier to develop, test, and maintain.

In this lesson, we will learn about the influence of coupling and cohesion and their relationship.

# Relationship between Coupling and Cohesion

First, let’s compare the benefits of the modules that have high cohesion and low coupling in the table below:

Learn about how coupling and cohesion improve software maintainability.

Highly Cohesive Modules	Lowly Coupled Modules
Easier to read and understand	Easier to read and understand
Easier to modify	Easier to modify
Increased potential for reuse	Increased potential for reuse
Easier to develop and test	Easier to develop and test

Introduction

Cornerstones of Object-oriented Programming

Object-oriented Design

Object-oriented Design Principles

Design Patterns

Real-world Design Problems

Designing a Meeting Scheduler

Designing a Restaurant Management System

Wrapping Up

Conclusion

Influence of Coupling and Cohesion on Software Maintainability

Relationship between Coupling and Cohesion