What is a Sequence Flow?

• A. A curved line
• B. A dashed line with an open arrowhead indicating communication across pools
• C. A dotted line linking supporting artifacts
• D. A solid line with an arrowhead indicating order of objects

Answer: (D)

In BPMN, how a process unfolds is shown with connectors called Sequence Flows. They encode the control flow—the order in which flow objects like start events, tasks, gateways, and end events execute inside a single process. This is drawn as a solid line with a filled arrowhead, guiding the progression from one object to the next. It’s distinct from other lines: a dashed line with an open arrowhead shows Message Flow for communication between pools, while dotted lines link artifacts or other non-flow items. So the description that fits is a solid line with an arrowhead indicating the order of objects.