《設計模式——可複用物件導向軟體的基礎》學習筆記（1.3）Describing design patterns...

1.What is important to describe DP
(1)Graphical notations capture the end product of the design process.
(2)We should record the decisions, alternatives, and trade-offs that led to it.


2.The way to describe DP
Each pattern is divided into sections according to the following template. The template lends a uniform structure to the information.
(1)Pattern name and Alias：名稱和別名
(2)Classification：類別，便於理解。
(3)Intent：目的
(4)Motivation：a scenario about the problem and solution.
(5)Applicability：適用性
(6)Structure：圖形的方式說明結構
(7)Participants：用到哪些類或物件，各自功能
(8)Collaborations：各Participants如何實現功能
(9)Consequences：為什麼用這個DP？從results、trade-offs等方面入手
(10)Implementation：實現該DP時要注意的pitfalls、hints和techniques
(11)Sample Code：樣例程式碼
(12)Known Uses：實際案例
(13)Related Patterns：相關DP