| Summary: | 博士 === 亞洲大學 === 資訊工程學系 === 103 === Mobile device applications, or apps, are important products of this digital age. Mobile devices have become ubiquitous and concurrently, apps as well. With the proliferation of apps, the lack of secured transactions has become a rising concern and security risk. The study, from the consumers’ points of view, explores critical security factors of mobile device applications, which are related to technology acceptance model. It explores with integrated perspective the influence of critical factors on perceived usefulness, perceived ease of use, user attitude, and behavioral intention. AMOS software is used in this study to verify the theoretical model, and the 366 valid samples were conducted to achieve an empirical analysis. The results show that app critical security factors have partial positive significance on consumers’ perceived usefulness and perceived ease of use. Perceived usefulness and perceived ease of use positively affects user attitude, while user attitude has positive effect on behavioral intention. However, perceived usefulness can not directly influence the behavioral intention. Therefore, perceived usefulness can influence the behavioral intention by enhancing consumers’ attitude. In other words, the user attitude becomes the important mediated variable of perceived usefulness to influence the behavioral intention to use. Finally, according to research findings, the study makes recommendations to the relevant vendors for management practices on mobile applications and services, and also for academic references.
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