olemus
toiminguid, protsesse või tegevusi
nooltega kujutav skeem
=
a diagram showing sequence of events,
and their interconnectivity

näiteid
https://duckduckgo.com/?q=%22arrow+diagram&t=h_&iax=images&ia=images

https://www.projectmanager.com/blog/arrow-diagrams-activity-on-node-activity-on-arrow

http://www.unige.ch/ses/sococ/cl/stat/concepts/arrow.diagrams.html

https://www.pinterest.com/thomas0122/arrow-diagram/