모바일 환경에서 사용자들은 실시간으로 언제 어디서나 모바일 서비스를 이용할수 있을 뿐만 아니라 사용자의 상황에 적합한 정보를 제공받을 수 있다. 이러한 모바일 서비스의 고유한 특성을 반영한 학계의 연구가 부족한 실정임을 감안하여 본 연구에서는 모바일 서비스의 특성들을 반영하여 연구를 수행하였다. 본 연구의 목적을 요약하면 다음과 같다. 첫째, 모바일 특성을 규명하고, 외생변수인 모바일 특성과 매개변수(지각된 이용용이성, 지각된 유용성, 지각된 즐거움)와의 관계를 규명하는 것이다. 둘째, 이러한 매개변수와 종속변수(이용의도)와의 관계를 규명하고, 종속변수에 대한 외생변수의 직·간접적인 영향력을 파악하는 것이다. 셋째, 모바일 서비스 수용에 대한 모형을 제안하고 모바일 서비스의 활성화를 위한 시사점을 제안하는 것이다. 본 연구에서는 Davis(1986)가 제안한 기술수용모형을 기반으로 하여 연구모형을 구축하고 설문조사를 통하여 연구모형과 가설을 검증하였다. 연구 결과를 보면 다음과 같다. 첫째, 모바일 서비스 특성(즉시접속성, 상황의존성)은 지각된 이용용이성에 유의한 영향을 미쳤다. 둘째, 모바일 사용자 특성(사용자친숙도, 사용자혁신성)은 지각된 이용용이성, 지각된 즐거움에 유의한 영향을 미치고 있다. 셋째, 모바일 기술 특성(보안성, 연결성)은 지각된 유용성과 지각된 이용용이성에 유의한 영향을 미쳤음을 알 수 있었다. 본 연구 결과는 모바일 서비스를 활성화시킬 수 있는 가이드 라인을 제공할 수 있으며, 모바일 서비스 유형에 대한 프레임워크 구축에 도움을 줄 수 있다.
In mobile environments, customers can be provided real-time information and services anywhere, independent of the user’s location. Despite the importance of mobile services, there has been little academic study on the unique characteristics of mobile services. To offer the unique characteristics of mobile services, therefore, this research investigated important factors to use mobile services from previous studies. The specific purposes of this study are as follows. Firstly, this study is to identify diverse dimensions for mobile characteristics - mobile service characteristics, mobile user characteristics, and mobile technology characteristics. Secondly, this paper investigates the relationship among variables - mobile characteristics, perceived ease of use, perceived usefulness, perceived enjoyment, and intention to use. To achieve this purpose, this study has been extensively reviewed various theoretical researches relating to acceptance model and mobile service. Davis(1986) proposed a technology acceptance model(TAM) derived from theory of reasoned action(TRA) and the original TAM consisted of perceived ease of use, perceived usefulness, attitude toward using, behavioral intention to use, and actual system use. This study was based on TAM, and proposed user acceptance of mobile services. The dimensions of mobile service characteristics, mobile user characteristics, and mobile technology characteristics were identified external variables. Perceived ease of use, perceived usefulness and perceived enjoyment were identified mediation variables, and Intention to use were identified dependent variables. Mobile service characteristics were identified reachability and situational dependence. Mobile user characteristics were identified user friendliness and user innovativeness. Mobile technology characteristics were identified security and connectivity. The major results of this study are as follows. Firstly, reachability has an influence on perceived usefulness and perceived ease of use. Situational dependence has an influence on perceived ease of use and perceived enjoyment. Secondly, user friendliness has an influence on perceived usefulness, perceived ease of use, perceived enjoyment, and intention to use. User innovativeness has an influence on perceived ease of use and perceived enjoyment. Lastly, security has an influence on perceived usefulness and perceived ease of use. Connectivity has an influence on perceived usefulness and perceived ease of use, and perceived enjoyment. These findings provide several implication as follows. Firstly, the results of this research can provide several insightful guidelines for promotion of mobile service. Secondly, this study can provide a theoretical framework of mobile service.