Public:Sequence Diagram

Sequence diagrams are often used to illustrate the Actors, and how the actors interact with each other in a sequence.

See Also

Sequence Diagram excerpt from Productize AI book

Example Sequence Diagram of HC Inbox

Tools

You can use a free style diagramming tool like draw.io or even figma. Some special purpose tools-

Web Sequence Diagrams

Lucid

Mermaid