What is a coach mark?
Coach marks are temporary messages that educate users through new or unfamiliar product experiences. They can be chained into a sequence to form a tour.
What is a Coachmark UI?
Coachmarks represent multiple help call-outs that appear on a transparent overlay. By using text and often arrows and images, they point to and explain the functionality of the user interface.
What is an instructional overlay?
The use of instructional overlays (IO) or coach marks is a technique used to guide users to where these features are located in the interface by using a darker layer superimposed to the interface (overlay) where elements are placed such as arrows and text (instructional elements).