About this course: This course extends object-oriented analysis and design by incorporating design patterns to create interactive applications. Through a survey of established design patterns, you will gain a foundation for more complex software applications. Finally, you will identify problematic software designs by referencing a catalog of code smells. You will be challenged in the Capstone Project to redesign an existing Java-based Android application to implement a combination of design patterns. You will also critique a given Java codebase for code smells. After completing this course, you will be able to: • Demonstrate how to use design patterns to address user interface design issues. • Identify the most suitable design pattern to address a given application design problem. • Apply design principles (e.g., open-closed, dependency inversion, least knowledge). • Critique code by identifying and refactoring anti-patterns. • Apply the model-view-controller architectural pattern.
Created by: University of Alberta
Taught by: Kenny Wong, Associate Professor
Computing Science, Faculty of Science
| Basic Info | Course 2 of 4 in the Software Design and Architecture Specialization |
| Level | Intermediate |
| Commitment | Four weeks of study, 5 – 8 hours/week |
| Language | English |
| How To Pass | Pass all graded assignments to complete the course. |
| User Ratings |
Syllabus
WEEK 1
Introduction to Design Patterns: Creational & Structural Patterns
Design patterns help to solve common design issues in object-oriented software. You will learn what they are and how they can be applied. In this module you will learn the creational and structural design patterns. You will continue to learn and practice expressing designs in UML, and code some of these patterns in Java.
9 videos, 8 readings
- Reading: Meet Your Presenter – Sam Jeffery
- Reading: Meet Your Facilitator – Christopher Djuric
- Reading: Discussion: Introduce Yourself
- Reading: Discussion: Design Pattern Examples
- Reading: Design Patterns Course Notes
- Reading: Design Patterns Glossary
- Video: 2.1.2 – Creational, Structural, and Behavioural Patterns
- Video: 2.1.3 – Singleton Pattern
- Video: 2.1.4 – Factory Method Pattern
- Video: 2.1.5 – Facade Pattern
- Video: 2.1.6 – Adapter Pattern
- Peer Review: Ungraded Assignment – Adapter Pattern
- Reading: Ungraded Assignment - Adapter Pattern (Solution)
- Video: 2.1.7 – Composite Pattern
- Peer Review: Ungraded Assessment – Composite Pattern
- Reading: Ungraded Assignment - Composite Pattern (Solution)
- Video: 2.1.8 – Proxy Pattern
- Video: 2.1.9 – Decorator Pattern
Graded: Module 1 Review
WEEK 2
Behavioural Design Patterns
You will continue learning useful design patterns and add them to your toolbox. In this module, you will learn the behavioural patterns. This will include communicating them in UML and coding them in Java!
5 videos, 4 readings
- Video: 2.2.2 – Chain of Responsibility Pattern
- Video: 2.2.3 – State Pattern
- Reading: Discussion: Undo/Redo As a Pattern
- Video: 2.2.4 – Command Pattern
- Reading: Mediator Pattern
- Reading: Capstone Assignment 2.1 - Implement the Command Pattern (Solution)
- Video: 2.2.5 – Observer Pattern
- Peer Review: Ungraded Assignment – Observer Pattern
- Reading: Ungraded Assignment - Observer Pattern (Solution)
Graded: Capstone Assignment 2.1– Implement the Command Pattern
Graded: Module 2 Review
WEEK 3
Working with Design Patterns & Anti-patterns
You will learn a design pattern that is very useful for user interfaces: model-view-controller, or MVC. Then you will learn some principles underlying the design patterns, to create software that is flexible, reusable, and maintainable. Finally, you will learn some of the symptoms of bad design, which we call code smells or antipatterns.
8 videos, 4 readings
- Peer Review: Ungraded Assignment – MVC Pattern
- Reading: Ungraded Assignment - MVC Pattern (Solution)
- Reading: Capstone Assignment 2.2 - Implement MVC Pattern (Solution)
- Reading: Liskov Substitution Principle
- Video: 2.3.2 – Open/Closed Principle
- Video: 2.3.3 – Dependency Inversion Principle
- Video: 2.3.4 – Composing Objects Principle
- Video: 2.3.5 – Interface Segregation Principle
- Video: 2.3.6 – Principle of Least Knowledge
- Reading: Discussion: Stories of Bad Coding
- Video: 2.3.7 – Part 1 - Code Smells
- Video: 2.3.7 – Part 2 - Code Smells
Graded: Capstone Assignment 2.2 – Implement MVC Pattern
Graded: Module 3 Review
WEEK 4
Capstone Challenge
In the previous modules, you were introduced to a variety of design patterns, and applied two of these to the example Android code base. Now, in the final module of the course, you will identify and fix specific code smells in this code base. After completing these tasks, you will be ready to complete the final exam.
4 readings
- Reading: Capstone Assignment 2.3 - Identify and Fix Code Smells (Solution)
- Reading: Discussion: Last Word – Design Patterns
- Reading: Acknowledgements
- Reading: Credits
Graded: Capstone Assignment 2.3 – Identify and Fix Code Smells
Graded: Final Exam
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University of Alberta
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| Access to course materials | Available |
| Access to graded materials | Available |
| Receive a final grade | Available |
| Earn a shareable Course Certificate | Available |
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