Prerequisite:
- Interaction diagram描述object之間的互動
- Class diagram描述class之間構成的結構與關係
Ref:
Interaction diagram
https://zh.wikipedia.org/zh-tw/%E4%BA%A4%E4%BA%92%E6%A6%82%E8%BF%B0%E5%9C%96
Class diagram
https://en.wikipedia.org/wiki/Class_diagram

UML class diagram relationships說明:


link:
https://cacoo.com/diagrams/42iti8NqW7vXxEnX/51F5C
Ref:
UML class diagram Relationships:
https://spicyboyd.blogspot.com/2018/07/umlclass-diagram-relationships.html