Design Patterns for Software Engineers

The purpose of this class is to provide experienced software engineers with an in-depth understandingof design patterns. Students will be demonstrated techniques to identify and apply patterns in day to day system design, and methods to incorporate reuse and uniformity into their system architectures. The essential principles behind developing good design patterns and the catalog of patterns used in Design Patterns: Elements of Reusable Object-Oriented Software, Gamme, et al (one copy provided to each student) will be discussed in great detail.

Prerequisites

Knowledge of modern software engineering techniques including Object Oriented Analysis and Design. Class examples will be presented in the C++ programming language.

Course Overview

A gentle introduction to design patterns

• Class Introductions
• Where do Patterns Come From
• What are Design Patterns
• Terminology
• How are patterns useful
• Disclaimer (What patterns will not do)

Common design principles

• A Review of Rumbaugh Notation
• OOD Principles
• Object
• Class and Type
• Abstract and Concrete Classes
• Inheritance
• Composition
• Parameterization
• Aggregation and Acquaintance
• Application of Principles
• Reuse

Describing design patterns

• Essential Elements
• Portland Form
• GOF Form

Catalog pattern overview

• Classification
• Overview

Creational patterns

• Abstract Factory
• Builder
• Factory Method
• Prototype
• Singleton

Structural patterns

• Adapter
• Bridge
• Composite
• Decorator
• Facade
• Flyweight
• Proxy

Behavioral patterns

• Chain of Responsibility
• Command
• Interpreter
• Iterator
• Mediator
• Memento
• Observer
• State
• Strategy
• Template Method (Skeleton)
• Visitor

Patterns in the software development process

Pattern languages

Class exercise