Handoffs - is the moment when the responsibility of a task passes from one person/team/unit/department to another. Handoffs are common in all processes. They can be clearly visualized using a departmental process map or a swim lane process map. Identifying handoffs in a process can help uncover improvement opportunities as they are usually associated with delays / defects / loss of material or information etc. Objective should be to keep the handoffs to bare minimum.
An application oriented question on the topic along with responses can be seen below. The best answer was provided by Anand M R on 9th January 2018.