The document discusses several design patterns including Observer, State, Template Method, Memento, Command, Chain of Responsibility, Interpreter, Mediator, Iterator, Strategy, Visitor, Flyweight, and Singleton patterns. For each pattern, it provides the definition, participants, structure, intent, caveats, and examples.

1. Design Patterns Team Effort 27 Aug 2008

8. Observer Pattern

16. State Pattern

23. Template Method Pattern

30. Memento Pattern

37. Command Pattern

45. Chain Of Responsibility Pattern

53. Chain Of Responsibility - Example

54. Chain Of Responsibility - Example

55. Interpreter Pattern

63. Mediator Pattern

69. Mediator Pattern - Example Real-Life Example: ATC Mediator

70. Iterator Pattern

77. Strategy Pattern

99. Chain Of Responsibility - Example