A selection technique which presents groups of items to the user. The user then signals with a switch press, gesture or other means when the desired item is being indicated. The scanning may be performed automatically by an electronic system or manually by the communication partner.
An "indirect selection" technique in which items are presented sequentially one at a time and the individual activates a switch or otherwise signals to accept one of the items when presented. Scanning, like other indirect selection techniques, is only intended for individuals who do not have sufficient motor control for direct selection techniques.
A computer access method for switch users. Choices on the screen are highlighted one at a time and the user indicates his or her choice by activating an input device. Various methods of scanning-- automatic scanning (auto scan), step scanning, single-switch Ñautomatic scanning (auto scan), step scanning, single-switch scanning, multiple-switch scanningÑ-can be used, depending on the userÕs abilities and preferences.