ABSTRACT
Computer users with motor impairments of upper limbs o en face diffi culties in accessing interactive applications and services using standard input devices. Several technological approaches attempt to deal with the issues raised by motor impaired users’ interaction with graphical environments, each addressing a different user category according to their individual characteristics and abilities. One of these methods is scanning, which is mainly targeted to users with poor muscle control, weakness, fatigue, or severe mobility problems in general.
