Answers
A connection with an arrow that shows the direction in which messages move.
A message sent from one person or department to another with no response expected.
Text written on an arrow that names the message being transferred.
A person, department or organisation represented by a box, ellipse or circle in a chart.
The transfer of messages from one person or department to another.
A chart that shows only the messages sent and received between participants, not processing or storage.
Messages sent from one person or department to another and then a reply is sent back.