Design Patterns I

Learning Objectives

• Describe the concept of a design pattern and its elements (name, problem, solution, and consequences)
• Match the following design patterns to their descriptions
  • abstract factory
  • builder
  • factory method
  • prototype
  • singleton
• Identify the most applicable design pattern(s) for a scenario

How to Complete this Lesson

Complete the following learning activities: (1.75–2 hours total)

1. Read the following in Software Engineering:
   • Chapter 7: Design and implementation (15 minutes)
     • Design patterns
2. Read the following in Design Patterns: Elements of Reusable Object-Oriented Software:
   • Chapter 1: Introduction (15–20 minutes)
     • What Is a Design Pattern?
     • Design Patterns in Smalltalk MVC
     • Describing Design Patterns
     • The Catalog of Design Patterns
3. Read the following from Tutorialspoints.com’s Design Patterns Tutorial (15–30 minutes)
   • Abstract Factory Pattern
   • Builder Pattern
   • Factory Pattern
   • Prototype Pattern
   • Singleton Pattern
4. Attend the class meeting (60 minutes)

Resources

Videos

• History of Design Patterns (3 minutes)
• Pattern Format (1 minute)
• Factory Method Pattern and Factory Method Pattern Example (5 minutes)
• Strategy Pattern and Strategy Pattern Example & Demo (9 minutes)
• Other Common Patterns (4 minutes)
• Singleton (6 minutes)

More Information

• Design Patterns Video Tutorial
• Design Patterns in Object Oriented Programming

---

Object-Oriented Design Design Patterns II