• Asia pacific journal of information systems
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• 제19권2호
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• pp.73-94
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• 2009

The general aspects for the future warfare shows that the concept of firepower and maneuver centric warfare has been replacing with that of information and knowledge centric warfare. Thus, some developed countries are now trying to establish the information systems to perform intelligent warfare and innovate defense operations. The C4I(Command, Control, Communication, Computers and Intelligence for the Warrior) systems make it possible to do modern and systematic war operations. The basic idea of this study is to investigate how TAM(Technology Acceptance Model) can explain the acceptance behavior in military organizations. Because TAM is inadequate in explaining the acceptance processes forcomplex technologies and strict organizations, a revised research model based upon TAM was developed in order to assess the usage of the C4I system. The purpose of this study is to investigate factors affecting the usage of C4I in the Korean Army. The research model, based upon TAM, was extended through a belief construct such as self-efficacy as one of mediating variables. The self-efficacy has been used as a mediating variable for technology acceptance, and the variable was included in the research model. The external variables were selected on the basis of previous research. The external variables can be classified into following: 1) technological, 2) organizational, and 3) environmental factors on the basis of TOE(Technology-Organization-Environment) framework. The technological factor includes the information quality and the task-technology fitness. The organizational factor includes the influence of senior colleagues. The environmental factor includes the education/train data. The external variables are considered very important for explaining the behavior patterns of information technology or systems. A structured questionnaire was developed and administrated to those who were using the C4I system. Total 329 data were used for statistical data analyses. A confirmatory factor analysis and structured equation model were used as main statistical methods. Model fitness Indexes for measurement and structured models were verified before all 18 hypotheses were tested. This study shows that the perceived usefulness and the self-efficacy played their roles more than the perceived ease of use did in TAM. In military organizations, the perceived usefulness showed its mediating effects between external variables and dependent variable, but the perceived ease of use did not. These results imply that the perceived usefulness can explain the acceptance processes better than the perceived ease of use in the army. The self-efficacy was also used as one of the three mediating variables, and showed its mediating effects in explaining the acceptance processes. Such results also show that the self-efficacy can be selected as one possible belief construct in TAM. The perceived usefulness was influenced by such factors as senior colleagues, the information quality, and the task-technology fitness. The self-efficacy was affected by education/train and task-technology fitness. The actual usage of C4I was influenced not by the perceived ease of use but by the perceived usefulness and selfefficacy. This study suggests the followings: (1) An extended TAM can be applied to such strict organizations as the army; (2) Three mediation variables are included in the research model and tested at real situations; and (3) Several other implications are discussed.

• 한국문헌정보학회지
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• 제34권3호
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• pp.25-36
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• 2000

본 연구는 인터넷 시대의 새로운 기능인 무선인터넷 서비스에 대하여 소개하고 특히 무선인터넷을 활용 할 수 있는 도서관의 정보서비스에 관하여 논의하였다. 차세대 인터넷 서비스의 선두주자로 떠오르는 무선 인터넷 서비스는 시간이나 장소의 제한없이 이동중 개인의 휴대폰을 통하여 필요한 정보를 제공 받을 수 있다는 점에서 그 이용이 급속히 확산되고 있다. 따라서 무선인터넷 서비스를 도서관에 수용하여 도서관 정보검색의 인터페이스를 다양화하므로써 이용자 서비스가 향상되며 도서관 업무의 분산화와 신속화라는 부가적인 효과도 기대할 수 있다.

• 한국의류학회지
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• 제36권5호
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• pp.523-533
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• 2012

Website reputation is a key criteria for searches related to fashion product information and purchases. The greater the reputation of a website, then the greater the sense of community among its members; in addition, a stronger positive attitude towards the products influence subsequent purchases or WOM intention. This study reveals the influence website reputation and a sense of community for the WOM effect in regards to fashion products according to the type of the online shopping mall. The findings of this study are as follows. First, an increased website reputation produces a higher sense of community and perceived usefulness for WOM. The effect of the WOM was greater as the perceived usefulness of WOM increased. Second, the perceived usefulness of WOM had the greatest effect on the WOM effect. The reputation of a website had only an indirect effect on the WOM effect through the sense of community and the perceived usefulness of WOM. Third, the comprehensive mall had a greater reputation, but the WOM effect was greater with the fashion specialty mall. About the influence on the WOM effect, in the comprehensive mall the sense of community was more powerful than reputation of the website. In the fashion specialty mall the reputation of the website was more powerful than the sense of community.

• 한국콘텐츠학회논문지
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• 제12권11호
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• pp.174-182
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• 2012

본 연구는 국세청전자문서시스템 수용에 영향을 미치는 정보품질요인이 전자문서시스템의 지각된 유용성과 지각된 이용용이성 그리고 시스템 사용태도에 어떠한 영향을 미치는지를 기술수용모형(TAM)을 이용하여 분석하는데 목적을 두었다. 분석결과, 국세청전자문서시스템을 수용하는 과정에 있어서 지각된 용이성과 지각된 유용성은 전자문서시스템의 정보품질변수와 시스템의 사용태도에서 매개역할을 하고 있으며, 전자문서시스템의 정보품질요인은 지각된 사용용이성과 지각된 유용성에 영향을 미치는 것으로 나타났다. 또한 시스템의 지각된 사용용이성은 지각된 유용성에 영향을 미치며, 전자문서시스템의 정보품질요인은 지각된 사용용이성과 지각된 유용성의 완전 매개역할을 통해서 시스템 사용태도에 영향을 미치는 것을 확인할 수 있었다.

• 한국정보시스템학회지:정보시스템연구
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• 제26권3호
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• pp.187-209
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• 2017

Purpose The sharing economy is the most important keyword that is changing the paradigm of the world economy and management, and it was selected as one of 10 ideas to change the world in 2011 in Time magazine. The purpose of this study is to verify the structural relationship between perceived value and risk, network effect, usefulness, trust, and intention to use of accommodation service. In addition, the effects of utility and trust, and the experience of using accommodation service are controlled by the effect of empirical value and reciprocal value among the perceived value of sharing economic service, The purpose of this study is to propose a plan to activate the accommodation sharing service. Design/methodology/approach This study was designed to investigate the structural relationship between perceived value, perceived risk, network effect, usefulness, trust, and intention to use. Empirical analysis was done using SPSS 21.0 and AMOS 21.0 Findings Based on the results of this study, the following conclusions can be drawn. First, it was concluded that the higher the economic value of the accommodation sharing service is, the more useful and reliable the service is. Second, the higher the experiential value of the accommodation sharing service is, the higher the usefulness and reliability of the service are. Third, it was concluded that the higher the value of the mutual benefit of the accommodation sharing service is, the higher the trust level of the service is, but not the usefulness of the service. Fourth, it was concluded that the higher the perceived risk of accommodation sharing service is, the lower the service trust level is, but the service usability is not affected. Fifth, it was concluded that the larger the network effect of the accommodation sharing service is, the more useful the service is, but it does not affect the reliability of the service. Sixth, it was concluded that the higher the overall reliability of the accommodation sharing service is, the higher the usefulness of the service is. Seventh, it was concluded that the higher the overall usefulness and reliability of the accommodation sharing service are, the higher the intention to use the sharing service is. Finally, in order to test the effect of the experience on the use of trust and usefulness of the accommodation sharing service, multiple group analysis was conducted to examine the relationship between trust and usefulness, It is shown that there is a moderating effect in the path.

• 한국산학기술학회논문지
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• 제10권9호
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• pp.2424-2434
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• 2009

본 연구는 공기업을 중심으로 다면평가제도의 선행요인이 평가효용성에 미치는 영향과 평가효용성이 조직성과에 미치는 영향을 파악하고 평가제도의 사전교육정도에 따라 평가효용성에 미치는 영향에 차이가 있는지를 알아보고 궁극적으로 피평가자가 인식하는 평가효용성이 조직성과에 어떠한 영향을 미치는지 4가지 관점에서 연구하였다. 연구 결과 선행요인인 평가자 신뢰성, 최고경영자의 지지는 평가효용성에 유의한 영향을 미치고 있으나 평가준거는 유의적이지 못하였다. 사전교육의 정도에 따라 선행요인과 평가효용성 간에 조절효과가 있는지를 검증한 결과 평가자 신뢰성은 조절효과가 있는 것으로 판명되었다. 그러나 평가준거, 최고경영자의 지지는 조절효과가 없는 것으로 나타났다. 결과적으로 본 연구의 평가효용성이 선행요인의 영향을 받아서 조직의 성과 즉, 조직몰입도, 직무만족도, 자기계발기회, 조직활성화에 직접 또는 간접적으로 영향을 미치며, 사전교육이 부분적으로 조절효과가 있는 것으로 확인할 수 있었다.

• 정보관리연구
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• 제25권3호
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• pp.1-27
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• 1994

• 한국컴퓨터정보학회논문지
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• 제16권5호
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• pp.147-152
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• 2011

본 연구는 스마트폰의 품질에 따른 스마트폰의 유용성과 이용 용이성 및 사용의도에 관한 연구를 통하여 스마트폰의 수용 결정과정에 미치는 영향들을 확인 및 검증했다. 이를 위해 기술수용모델(TAM)을 확장하여 이론모델을 제시하고, 설문조사를 실시하여 회귀분석을 실시하였다. 조사 분석결과 스마트폰의 품질은 유용성과 이용용이성에 유의한 영향을 미치며, 이들은 사용의도에 유의한 영향을 미치는 것으로 나타났다. 또, 스마트폰 사용자가 일반 휴대폰 사용자보다 품질 만족도가 높고, 계속사용의도가 높은 것으로 나타났다.

• 한국산학기술학회논문지
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• 제10권2호
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• pp.447-454
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• 2009

본 연구는 기업의 통합정보시스템이 업무 사용자들에게 어떠한 영향을 미치는지를 정보화 중소기업을 대상으로 조사.분석하였다. 최근 몇 년 동안 많은 중소기업들은 새로운 통합시스템을 도입 및 운영하고 있지만 시스템의 불안정. 유지 및 관리통제의 미흡 등으로 실질적인 업무성과 분석에 어려움을 겪고 있다. 따라서, 본 연구에서는 비교적 안정적으로 시스템을 운영하고 있는 기업을 대상으로 통합정보시스템을 측정하여 공통적인 문제점과 대안을 분석하고자 하였다. 이러한 분석을 위하여 정보화수준, 시스템 유용성, 정보 유용성, 정보생성 수준, 서비스 유용성 등의 변수를 대상으로 연구모형과 연구가설을 설계하였다. 본 연구는 다음과 같이 결론을 얻었다. 첫째, 시스템 유용성, 정보 유용성, 정보생성 수준, 서비스 유용성이 좋을수록 사용자 성과에 긍정적인 영향을 주는 것으로 분석되었다. 둘째, 세부 측정 변수에서는 정보화수준에 대한 사용자 인식이 다소 부족한 것으로 분석되었다 본 연구는 향후 중소기업의 다양한 산업 분야에서 안정적인 시스템 도입에 유용한 자료가 될 수 있을 것이다.

• Journal of Information Technology Applications and Management
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• 제26권3호
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• pp.99-120
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• 2019

The purpose of this study is to provide information necessary for establishing a new strategy for customer service improvement by deriving factors affecting user satisfaction and continuous use intention of mobile app service user characteristics, system characteristics, and social characteristics. The results of this study are summarized as follows. First, reliability, innovation, familiarity, convenience, and self-efficacy among the characteristics of mobile app are analyzed as factors that have the greatest influence on user's perceived usefulness. Second, convenience, mobility, and visibility are some of the characteristics of mobile app service. Third, identity, security, and expectation agreement among mobile app service characteristics are analyzed as negative factors that do not affect users' perceived usefulness. Fourth, interactivity, familiarity, and self-efficacy among the characteristics of mobile app service were analyzed as positive factors that have the greatest effect on user's perceived ease of use. Fifth, reliability, mobility, visibility, and convenience among mobile app service characteristics are analyzed as factors that have some positive effects on perceived ease of use of app users. Sixth, identity, innovation, and security among the characteristics of mobile app service are negatively influenced by mobile app users' perceived ease of use. Seventh, the perceived usefulness of mobile app users is analyzed as a factor that has a very positive effect on user satisfaction. Eighth, the perceived ease of use of mobile app users is analyzed as a factor affecting perceived usefulness positively. Ninth, the perceived ease and expectation of mobile app users are positively influenced on user satisfaction. The tenth, the perceived usefulness of the mobile app users was analyzed as a factor having a very positive influence on the persistent intention to use. For the eleventh, the perceived ease of use of mobile app users was analyzed as a factor having a positive effect on the persistent intention to use. The twelfth, mobile app user satisfaction was analyzed as a factor having a very positive effect on the persistent intention to use.