“Flow charts attempt to visualize a process, usually centered around a specific task or function, For web-based processes, flow charts often represent a series of screens that collect and display infromation to the users. Also known as flows, user flows, process charts.”
“What seperates a flow from a site map is that in the former, time is the defining factor. The relationships between the steps are sequential, not structural or hierarchichal . While site maps capture an information structure that may or may not match the user’s experience of the site, a flow chart defines a process from beginning to end.
From: Brown, Dan (2007), Communicating Design, Berkeley: New Riders, p. 229