Object-Oriented Design

Object-Oriented Design

This course is part of Software Design and Architecture Specialization

Instructor: Kenny Wong

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Assessments

7 assignments

Taught in English

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This course is part of the Software Design and Architecture Specialization

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There are 4 modules in this course

This course takes Java beginners to the next level by covering object-oriented analysis and design. You will discover how to create modular, flexible, and reusable software, by applying object-oriented design principles and guidelines. And, you will be able to communicate these designs in a visual notation known as Unified Modelling Language (UML).

You will be challenged in the Capstone Project to apply your knowledge of object-oriented design by evolving and documenting the Java codebase for an Android application with corresponding UML documentation. After completing this course, you will be able to: • Apply the Class Responsibility Collaborator (CRC) technique to analyze and design the object-oriented model for a problem. • Explain and apply object-oriented modeling principles and their purpose (e.g., abstraction, encapsulation, decomposition, generalization). • Explain and apply different types of inheritance • Explain the difference between association, aggregation, and composition dependencies. • Express object-oriented models as Unified Modeling Language (UML) class diagrams. • Translate between UML class diagrams and equivalent Java code. • Apply design guidelines for modularity, separation of concerns, information hiding, and conceptual integrity to create a flexible, reusable, maintainable design. • Explain the tradeoff between cohesion and coupling.

Good software design begins before coding. After establishing the initial software requirements, design practices involve two main activities: conceptual design and technical design. In this module, you will realize the importance of design and object-oriented thinking, and learn how to design software using techniques like CRC cards.

What's included

6 videos9 readings4 assignments

6 videosTotal 58 minutes

1.1.1 – Welcome to Software Design and Architecture8 minutesPreview module
1.1.2 – Software Architect and Design Roles in Industry20 minutes
1.1.3 – Object-Oriented Modeling3 minutes
1.1.4 – Software Requirements, Conceptual and Technical Designs9 minutes
1.1.5 – Competing Qualities and Trade-offs8 minutes
1.1.6 – Record, Organize, and Refine Components7 minutes

9 readingsTotal 90 minutes

Meet Your Presenter – Sam Jeffery10 minutes
Meet Your Facilitators10 minutes
Java Knowledge10 minutes
Object Oriented Design Course Notes10 minutes
Course Glossary10 minutes
Discussion: Introduce Yourself10 minutes
Expressing Requirements with User Stories10 minutes
Categories of Objects in Design10 minutes
Discussion: Modeling CRC10 minutes

4 assignmentsTotal 120 minutes

Module 1 Review30 minutes
Java Proficiency Quiz 130 minutes
Java Proficiency Quiz 230 minutes
Java Proficiency Quiz 330 minutes

Best software design practices have evolved alongside programming languages. Today, all developers should be familiar with abstraction, encapsulation, decomposition, and generalization, which are fundamental principles in object-oriented design. You will learn all of these principles and how they are expressed in Java and communicated visually in Unified Modelling Language.

What's included

11 videos4 readings1 assignment2 peer reviews

11 videosTotal 69 minutes

1.2.1 – Models: Bridging Concepts and Solutions4 minutesPreview module
1.2.2 – Languages Evolution6 minutes
1.2.3 – Abstraction5 minutes
1.2.4 – Encapsulation6 minutes
1.2.5 – Decomposition5 minutes
1.2.6 – Generalization5 minutes
1.2.7 – Abstraction in Java and UML6 minutes
1.2.8 – Encapsulation in Java and UML4 minutes
1.2.9 – Decomposition in Java and UML8 minutes
1.2.10 – Generalization with Inheritance in Java and UML7 minutes
1.2.11 – Generalization with Interfaces in Java and UML8 minutes

4 readingsTotal 30 minutes

Discussion: Design Principles and Language Evolution10 minutes
Ungraded Assignment - UML Class Diagram (Solution)10 minutes
Peer Review Request Forum0 minutes
Capstone Assignment 1.1 - UML Class Diagram (Solution)10 minutes

1 assignmentTotal 30 minutes

Module 2 Review30 minutes

2 peer reviewsTotal 120 minutes

Ungraded Assignment - UML Class Diagram60 minutes
Capstone Assignment 1.1 – UML Class Diagram60 minutes

Additional design principles will help you to create code that is flexible, reusable, and maintainable. In this module you will learn about coupling and cohesion, separation of concerns, information hiding, and conceptual integrity. You will also learn to avoid common pitfalls with inheritance, and ways to express software behavior in UML.

What's included

8 videos6 readings1 assignment4 peer reviews

8 videosTotal 62 minutes

1.3.1 – Coupling and Cohesion6 minutesPreview module
1.3.2 – Separation of Concerns9 minutes
1.3.3 – Information Hiding6 minutes
1.3.4 – Conceptual Integrity5 minutes
1.3.5 – Inheritance Issues5 minutes
1.3.6 – UML Sequence Diagram7 minutes
1.3.7 – UML State Diagram7 minutes
1.3.8 – Model Checking14 minutes

6 readingsTotal 60 minutes

Discussion: Coupling and Cohesion10 minutes
Discussion: Design Principles10 minutes
Ungraded Assignment - UML Sequence Diagram (Solution)10 minutes
Capstone Assignment 1.2 - UML Sequence Diagram (Solution)10 minutes
Ungraded Assignment - UML State Diagram (Solution)10 minutes
Capstone Assignment 1.3 - UML State Diagram (Solution)10 minutes

1 assignmentTotal 30 minutes

Module 3 Review30 minutes

4 peer reviewsTotal 240 minutes

Ungraded Assignment – UML Sequence Diagram60 minutes
Ungraded Assignment – UML State Diagram60 minutes
Capstone Assignment 1.2 – UML Sequence Diagram60 minutes
Capstone Assignment 1.3 – UML State Diagram60 minutes

In the previous modules you were introduced to object-oriented analysis and design, object-oriented modeling, and design principles. To cement your understanding of this material, you created a UML class diagram from an example Android code base, and used your understanding of the code base to make sequence and state diagrams to model its behavior. Now, in the final module of the course, given a description of new functionality and an updated UML class diagram, you will implement the updated design into the Android code base. After completing this development task, you will be ready to complete the final exam.

What's included

4 readings1 assignment1 peer review

Instructor

Instructor ratings

4.8 (502 ratings)

Kenny Wong

University of Alberta

12 Courses431,137 learners

Offered by

University of Alberta

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Reviewed on Aug 5, 2020

Great course to learn the concepts of Software Designing and how it is used in real business scenarios. This course is indeed very helpful for aspiring product developers who aim to be an architect.

Reviewed on Nov 30, 2023

This course is a labour of love, immensely helpful material and excellent delivery. I wish I had discover this course 5 years earlier. It is a must for everyone working in IT.

Reviewed on Jul 26, 2020

This course is brilliant! Through this course, I gradually lay solid foundation in Object-Oriented Design, as well as improve my programming skills. I'd like to recommend it to my peers!

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