Scan Movement Tutorials Jessica Cassellius April LaCoursiere Meghan Neu

Overview  Simple Scan Movement  Directed Scan Movement

Simple Scan Movement  Referred to as linear scan or tracking most straight- forward of all the scan movements  Each item is highlighted in turn... until the required item is reached and selected

Why use Simple Scan?  scanning a small number of items  introducing scanning  However, with larger selections sets scanning slow and tedious Examples: Switch Kids Software: Trap the Fly II, Scan ‘n’ Match, Switch Wars

Directed Scan Movement  Directed scanning allows the user to direct the highlighter movement freely in a number of directions to reach the desired item  Four switches  Fifth switch