現今行動商務市場競爭激烈，要如何提升使用者願意使用其購物型APP，是一大挑戰，因此許多學者對於如何提升使用意圖皆有深入的探討，而在眾多的科技接受理論中，整合性科技接受模型(Unified Theory of Acceptance and Use of Technology, UTAUT)，其對於使用者使用意圖及行為的解釋能力，高達了70%遠大於之前其他接受理論模型。而資訊系統成功模型中，主要影響使用意圖的系統相關品質構面，也是使用者會考量到是否該使用該APP的一個因素，在電子商務及行動商務領域的研究中，眾學者皆認為系統相關品質的好壞，是影響使用意圖的一個關鍵因素，在過往使用意圖的研究中，大部分區分為兩大主流，一部分是透過科技接受模型來探討使用者接受意圖，另一部分是透過系統相關品質探討使用意圖及客戶滿意度，較少的研究會整合此兩部分的模型，故本研究以UTAUT作為基礎，並探討資訊系統成功模型中的系統、資訊及服務品質，如何透過績效預期、努力預期、社會影響與促成條件，對消費者使用購物型APP之意圖的影響。
本研究共收集315份有效問卷，並且結構方程式的部份最小平方法(Partial Least Squares ,PLS)來驗證，研究結果顯示，系統品質與服務品質皆會正向影響使用意圖；而系統品質與資訊品質及服務品質會透過績效預期，間接的影響使用意圖；服務品質會透過促成條件間接的影響使用意圖；績效預期與社會影響及促成條件，也皆會正向的影響使用意圖。期望本研究之結果能彌補過去文獻的不足，並提供購物型APP供應商或開發商在提升使用意圖方面的實務上依據。

Based on the unified theory of acceptance and use of technology (UTAUT), this study adopts on the system, information and service qualities of Information System Success Model (ISSM), to investigate their effects on the intention to use of the users of mobile shopping applications (APP) via the mediation of performance expectancy, effort expectancy, social influence and facilitating conditions.
Data collected from 315 respondents was analyzed using the technique of partial least squares (PLS) to validate our research model. The results show that system quality and service quality have directly positive effects on behavioral intention. System quality, information quality and service quality have indirectly effects on behavioral intention via facilitating conditions. Service quality has an indirect effects on behavioral intention via facilitating conditions. Performance expectancy, social influence and facilitating conditions have the positive effects on behavioral intention.
This study validates the relationship between intention to use and several factors of the application from APP developers. In conclusion, higher system, information, service qualities bring stronger intention to use. Furthermore, providing customers further assistance with the promotion and recommendation of users can significantly increase the intention to use as well.

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