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Abstract
The cell phone is not a simple communication tool. People use embedded mobile phone features such as games, cameras and wireless internet for various purposes of entertainment and shopping. In some cases usability problems impact negatively on product success, whereas in other cases they do not. The objective of our study was to develop a questionnaire for cell phones and investigate the relation between usability and product success. We reviewed existing usability studies and factors for product success to develop the questionnaire for cell phones. Subjects then evaluated the usability and success factors of cell phones. Finally, re-purchase intention and success scores including usability scores were analysed to determine whether they are positively related and which usability factors impact cell phone product success. Design, customer needs and innovativeness of cell phones were especially important among success factors, whereas more attention should be paid to satisfaction, feedback and efficiency among the usability dimensions.