Should My Swimlane Be Vertical or Horizontal
A vertical layout places slightly more emphasis on the functional
units while a horizontal layout emphasizes the process.
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In BPMN diagram, a process
flowchart is typically shown flowing from left to right. If only one set of
swimlanes is used, horizontal swimlanes are most commonly used to group
activities. In a horizontal layout,
bands representing functional units run horizontally
across the drawing page, highlighting the process.
In the UML diagram, the
activity diagram flows from top to bottom and vertical swimlanes are most
commonly used. In a vertical layout,
bands representing the functional units run
vertically from the top to the bottom of the page,
highlighting the functional units.
The orientation option you choose often depends on personal taste, rather than a
strict requirement or guideline. You can also choose the number of bands that
appears in the diagram when you create it. The best practice is to create enough
bands to hold each step of the process you want to document.
how to draw a swimlane. You can start from swimlane examples. To be more accurate and professional, learn to use a swimlane software.