Usability evaluation on a wearable finger gesture input device for multiple home appliances control

Finger Gestural Interface (FGI) is a novel lightweight natural interface. Magic Ring is a kind of wearable finger gesture input device. It is desired to perform the evaluation work on such kind of interface in some realistic scenario. In this paper, we set up a multiple home appliances control system as the test bed and perform the usability evaluation experiment on Magic Ring over 18 subjects. The appliance control process is divided into several steps. Novice Expert ratio Method (NEM) is adopted to observe the different time cost on each step between the expert user (the developer) and novice user (the subjects). The cons and pros are heighted through the quantitative experiment analysis.