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readme
course(s)
preface
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III
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afterthought(s)
appendix
reference(s)
example(s)
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pattern(s) / matrix / model(s) / resource(s)
design patterns
design pattern(s) -- catalogue
- a common design vocabulary
- documentation and learning aid
- an adjunct to existing methods
- a target for redesign
see the GOF Design Patterns and the Patterns Homepage
the pattern schema
structure
name - handle
- increases design vocabulary
problem - when to apply
- explains the problem and the conflict
solution - general arrangement
- design, responsibilities, collaborations
consequences - tradeoffs
- to understand the costs and benefits
causes for redesign
design for change
- creating an object by specifying a class explicitly -- Abstract Factory, Factory Method, Prototype
- dependence on specific operations Chain of Responsibilty, Command
- dependence on hardware & software platforms -- Abstract Factory, bridge
- dependence on object implementation or representation Abstract Factory, Bridge, Memento, Proxy
- algorithm dependence -- Builder, Iterator, Strategy, Template Method, Visitor
- extending functionality by subclassing -- Bridge, Chain, Composite, Decorator, Observer
- tight coupling -- Abstract Factpry, Bridge, Chain of Responsibilities, Command, Facade, Mediator, Observer
- inability to alter classes conveniently -- Adaptor, Decorator, Visitor
kinds of patterns
- creational patterns -- factory, singleton, ...
- structural patterns -- adaptor, composite, bridge, ...
- behavioral patterns -- mediator, observer, command, ...
see also
see UML
[]
readme
course(s)
preface
I
1
2
II
3
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III
5
6
7
IV
8
9
10
V
11
12
afterthought(s)
appendix
reference(s)
example(s)
resource(s)
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(C) Æliens 04/09/2009
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