流程图把值编码为带标签方框与有向边的拓扑。吉尔布雷斯过程图 1921；后来 ANSI/ISO 符号。
工作报告、广告与作业中适合程序中的分支、循环与交接。若结构是层级或自由头脑风暴时，换一种形式。
Parts
- 标记 — The core mark of 流程图 is 带标签方框与有向边的拓扑.
- 尺度 — The scale must show zero (or a declared break) and units.
- 轴 — Axis titles name the variable, not a mood.
- 图例 — A legend is weaker than a direct label. Write beside the mark when you can.
- 标签 — Numbers are optional. If comparison is the job, label the ends only.
- 网格 — Keep the grid faint. Data should own the ink.
- 注释 — One annotation sentence. Date the source.
- 外框 — A thin frame. Never a 3-D box.
Variants
- 过程图 — Variant 1 of 流程图. Same encoding, different layout.
- ISO 5807 — Variant 2 of 流程图. Same encoding, different layout.
- 决策流 — Variant 3 of 流程图. Same encoding, different layout.
- 流程图 4 — Variant 4 of 流程图. Same encoding, different layout.
Labels
- 轴 — On 流程图, make Mark readable.
- 图例 — On 流程图, make Scale readable.
- 标签 — On 流程图, make Axis readable.
- 网格 — On 流程图, make Legend readable.
- 注释 — On 流程图, make Label readable.
流程图: honour 带标签方框与有向边的拓扑, and switch when 结构是层级或自由头脑风暴时.