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OO Design Patterns

Horizontales
This pattern decouples clients from both implementation details of a data-structure and decouples clients from where each other are looking at data in that structure
Can be used to connect to an object that provides the required semantic behavior with the wrong syntactic construction
The kind of problem solved by a design pattern
An aspect of a subsystem that should only be changed as a last resort
A pattern that allows multiple independent changes to behavior at runtime
This pattern requires an object implements an interface, and connects to another object that implements the same interface, without changing the business logic of the object connected to
This pattern is often the result of removing business logic from user interface components and creating a new object to contain that business logic
The applicability of a pattern might be dependent on this
Verticales
The Gang of Four's callback type pattern
An n-ary tree of objects that can support a function traversing the tree computing something
A pattern that has the same object diagram as a Proxy
There can be only one!
A creational pattern that provides changing of method calls
What to do with things that change independently
Do that thing you do, with this help!