- Strive for loosely coupled designs between objects that interact.
- Factory Method - Define an interface for creating an object, but let the subclasses decide what class to instantiate. Factory Method lets a class defer instantiation to subclasses.
- Abstract Factory - Provide an interface for creating families of related or dependent objects without specifying concrete classes.
- Builder - Separate the construction of a complex object from its representation so that the same construction process can create different representations.
- Prototype - Specify the kinds of objects to create using a prototypical instance, and create new objects by copying this prototype.
- Singleton - Ensure a class only has one instance, and provide a global point of access to it.
- Adapter - Convert the interface of a class into another interface clients expect. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces.
- Bridge - Decouple an abstraction from its implementation so that the two can vary independently.
- Composite - Compose objects into tree structures to represent part-whole hierarchies. Composite lets clients treat individual objects and compositions of objects uniformly.
- Decorator - Attach additional responsibilities to an object dynamically. Decorators provide a flexible alternative to subclassing for extending functionality.
- Facade - Provide a unified interface to a set of interfaces in a subsystem. Facade defines a higher-level interface that makes the subsystem easier to use.
- Flyweight - TODO
- Proxy - TODO
- Chain of Responsibility - TODO
- Command - TODO
- Iterator - TODO
- Mediator - TODO
- Memento - TODO
- Observer
- State - TODO
- Strategy - TODO
- Template Method - TODO
- Visitor - TODO