本文介绍了UiPath的三种工作流设计图：顺序图、流程图和状态机。顺序图适用于简单线性流程，如UI自动化；流程图提供更灵活的连接活动方式，适合展示决策点；状态机则用于复杂的逻辑表示，特别适用于业务流程模板。文章还讨论了If活动、Flow Decision、If Operator、Switch活动和Flow Switch等决策实现，并强调了变量作用域、参数传递、默认值设定和命名约定的重要性。
UiPath offers three diagrams for integrating activities into a working structure when developing a workflow file:
Flowchart
Sequence
State Machine
1.1 Layout Diagrams
1.1.1. Sequence
Sequences have a simple linear representation that flows from top to bottom and are best suited for simple scenarios when activities follow each other. For example, they are useful in UI automation, when navigation and typing happens one click/keystroke at a time. Because sequences are easy to assemble and understand they are the preferred layout for most workflows.
1.1.2. Flowchart
Flowcharts offer more flexibility for connecting activities and tend to lay out a workflow in a plane two-dimensional manner. Because of its free form and visual appeal, flowcharts are best suited for showcasing decision points within a process.
Arrows that can point anywhere closely resemble the unstructured GoTo programming statement and therefore make large workflows prone to chaotic interweaving of activities.
1.1.3. State Machine
State Machine is a rather complex structure that can be seen as a flowchart with conditional arrows, called transitions. It enables a more compact representation of logic and we found it suitable for a standard high level process diagram of
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