Design Patterns

Creational Patterns:

1. Factory Method Pattern
2. Singleton Pattern

Structural Patterns:

1. Decorator Pattern
2. Adapter Pattern
3. Composite Pattern

Behavioral Patterns:

1. Command Pattern
2. Observer Pattern
3. Template Method Pattern
4. State Pattern
5. Strategy Pattern

Multiple Patterns:

1. Model-View-Controller Pattern
2. Symmetric Proxy Pattern 

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[Courtsey AS3.0 Design Patterns: William B. Sanders and Chandima Cumaranatunge]