《设计模式——可复用面向对象软件的基础》学习笔记（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：名称和别名
(2)Classification：类别，便于理解。
(3)Intent：目的
(4)Motivation：a scenario about the problem and solution.
(5)Applicability：适用性
(6)Structure：图形的方式说明结构
(7)Participants：用到哪些类或对象，各自功能
(8)Collaborations：各Participants如何实现功能
(9)Consequences：为什么用这个DP？从results、trade-offs等方面入手
(10)Implementation：实现该DP时要注意的pitfalls、hints和techniques
(11)Sample Code：样例代码
(12)Known Uses：实际案例
(13)Related Patterns：相关DP