为什么交互框架缩写为 "sd"?

why are interaction frames abbreviated with "sd"?

在 UML2.0 中,内容区域的框架可以用框架和标题包围 activity图表行动

class图class

组件图cmp

交互图sd

状态机图stm

用例图uc

为什么交互框架用 "sd" 缩写? 和交互图sd 所有的交互都来自于此?

说得好。对我来说,sd 仅适用于序列图,但根据 UML 2.5 规范,更具体地说是第 17.2.4 节,通信图、交互概述图和时序图似乎也是如此。

17.2.4 Notation

Interaction

The notation for an Interaction in a Sequence Diagram is a solid-outline rectangle. A pentagon in the upper left corner of the rectangle contains ‘sd’ followed by the Interaction name and parameters. The notation within this rectangular frame comes in several forms: Sequence Diagrams, Communication Diagrams, Interaction Overview Diagrams, and Timing Diagrams.