Incorporating user acceptance into usability evaluation scheme for the user interface of mobile services

As the usability of mobile services has become a critical factor of success in market, needs for established usability evaluation methodologies and realistic practices that ensure capturing usability in evaluation are increasing. From a point of user-centered design perspective, customer perceived value (CPV) has recently gained much attention from usability experts and user interface (UI) practitioners due to its important role in predicting purchase behavior and achieving sustainable competitive advantage. User perceived values on the newly introduced mobile services are diverse and rapidly changing However, there are few appropriate evaluation methods for assessing the usability of mobile services considering the CPVs. The purpose of this study is to propose an evaluation scheme incorporating users' subjective values on the usability of mobile services. Based on the CPVs on mobile services from FGI, appropriate usability principles related to UI design components, CPVs from the literature were synthesized for the development of evaluation indexes in the proposed evaluation scheme. Comparing with traditional evaluation methods, it is expected that the proposed approach might enable UI practitioners to capture what users really want as well as to secure the usability of mobile services quickly and easily in the field.