Sequence Flow connects the other Process elements (Activities, Events, and
Gateways). It orders the flow objects—for example, Activities such as "Send
Invoice," "Receive Payment," and "Accept Payment" are performed sequentially
The. Sequence Flow of a Process—the solid lines with solid arrowheads in
between the Activities in the figure—create the paths of the Process navigated
during its performance. Sequence Flow cannot cross a Sub-Process boundary or
Process boundary (a Pool).