Flowchart
From VNDev Wiki
A flowchart is (in general terms) a graphical representation of a workflow or process using symbols and arrows or connecting lines to depict the sequence of events. In the terms of a visual novel, a flowchart is an illustration of the choices a player makes to get to a game ending. Many devs use flowcharts to plot out their game before starting on the script, which helps the team calculate the project’s scope. Some VNs will offer an in-game flowchart to keep track of which routes the player has explored. Alternately, a flowchart may be offered on their website, in an artbook/fanbook, or created by a game’s fans.