This study was a follow-up to determine the psychometric quality of the usability questionnaire items derived from a previous study (Ryu and SmithJackson, 2005), and to find a subset of items that represents a higher measure of reliability and validity. To evaluate the items, the questionnaire was administered to a representative sample involving approximately 300 participants. The findings rev...

Background: Ergonomics is a science that provides methods of creating reasonable adaption between occupation and worker by improving usability through consideration of job demands and human ability to satisfy them. A deep understanding of user’s thoughts on and attitudes toward utilizing a tool could improve its design. In the present study, two cushions designed particularly for one of c...

In this paper, the authors compare the usability of SMS mobile banking and automated IVR telephone banking. Participants (N = 116) used SMS banking and IVR banking to find their account balance in a repeated-measures experiment. IVR banking scored higher for usability metrics: effectiveness, attitude, and quality. There was no clear difference in rank order of preference between the two channel...

Aesthetics is advocated as a key factor influencing consumer judgment and preference; however, research in IS and HCI has paid limited attention to it until recently. This study investigated the effects of website aesthetics, along with website usability, on users’ online purchase intention. Additionally, the moderator of task involvement was introduced to explain how aesthetics influences util...

An experiment (N=24) was conducted with a spoken dialogue system (a smart home system), in which the users carried out several tasks with the system and rated its usability. Users’ interactions were analyzed from the perspective of human error research done in human factors and cognitive ergonomics, distinguishing between goal-, concept-, task-, and command-level errors. This paper raises the q...

Mobile health platforms offer significant opportunities for improving diabetic self-care, but only if adequate usability exists. Expert evaluations such as heuristic evaluation can provide distinct usability information about systems. The purpose of this study was to complete a usability evaluation of a mobile health system for diabetes patients using a modified heuristic evaluation technique o...