Operational assistance for elderly people using a rhythm system

Abstract

Information Technology machines as MFPs (Multiple Function Printers) and ATMs (Automatic Teller Machines) with complicated functions require better user assistance, particularly for elderly people. It is necessary to reduce psychological loads such as a sense of insecurity or impatience in operation, as well as the cognitive load. This study focuses on enhanced operational rhythm to reduce psychological load on the elderly when using MFPs, which require the user to navigate between quite a few settings. Evaluation was carried out by observing elderly subjects and middle-aged subjects using MFP interfaces whilst hearing an audio rhythm at a Tempo of 40, 60 and 120 bpm (beats per minute). The number of operational errors and overall time taken to complete the task were recorded, along with subjective evaluation via interviews with the subjects. The results showed that elderly subjects tended to operate in accordance with the operational rhythm. On the other hand, middle-aged subjects tended to operate at their own rhythm.