About Design Patterns

ReadMe, Overview, Structure of the Book, Navigating the Book, Hints, Ordering the Book

Structure of the Book

• Creational
  Patterns that are concerned with the process of object creation.
• Structural
  Patterns that deal with the composition of classes or objects.
• Behavioral
  Patterns that characterize the ways that classes or objects interact.

Each pattern is described in the following sections:

• Intent
  Describes what design problem the pattern addresses.
• Motivation
  Illustrates a design problem and explains how the design pattern helps to solve the problem.
• Applicability
  Describes the situations in which the design pattern can be applied.
• Structure
  Shows graphically the structure of the pattern in Object Modelling Technique (OMT) notation.
• Participants
  Describes the classes and objects that are a part of the design pattern.
• Collaborations
  Describes how the participating classes work together to carry out their responsibilities.
• Implementation
  Presents pitfalls, hints and techniques that help you to implement the pattern.
• Sample Code
  Presents code fragments that illustrate the use of the pattern in C++ or Smalltalk.
• Known Uses
  Presents examples of the pattern as found in real systems.
• Related Patterns
  Identifies other patterns that are closely related to the pattern.
• Code Generation
  A tool for generating program code based on the patterns in the book. This section is only present when you have access to the World Wide Web and have installed Design Patterns.

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