This is a cross functional flowchart about onboarding. Once a flowchart is in place, it can assist in identifying less evident aspects of the process that can be adjusted to increase efficiency, such as bottlenecks, defects, and superfluous stages. It's best to think of it as a moving diagram.
Flowcharts are limited in what they can express, thus they're frequently used in conjunction with other diagrams. They are historically significant. They were first introduced to members of the American Society of Mechanical Engineers in 1921 as a flow process chart, and they were popular in early computing in the 1950s.