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집단극화와 컴퓨터 매개 커뮤니케이션에 대한 재고;사회적 존재감 관점 vs. 익명성 관점
서길수,임건신,심상민,서웅교 한국경영정보학회 2007 한국경영정보학회 학술대회논문집 Vol.2007 No.-
The objective of this paper is to contemplate a possible alternative to the examination, published as a research article in Information Systems Research(Sia et al. 2002), of the effects of communication cues, anonymity, and social presence on group polarization in computer-mediated communication(CMC) settings. Sia et al. introduced the concept of social presence to explain the effects of communication cues and anonymity on group polarization, but we believe that anonymity alone provides a clearer explanation of the results. This paper classifies levels of anonymity to provide possible explanations for Sia et a1. (2002)'s results and presents the results of a new experiment to confirm our explanation. We also want to emphasize that our comments are not intended to disparage the usefulness of social presence as a mediating variable to explain group polarization; our intention instead IS to encourage further investigation to better understand group polarization in CMC settings.
The Impacts of Media Symbol Variety on Performance in Virtual Teams
심상민,서길수,임건신 한국데이터전략학회 2010 Journal of information technology applications & m Vol.17 No.3
The purpose of this study is to examine the impacts of media symbol variety on group performance in virtual teams. Symbol variety is defined as the number of ways in which information can be communicated and includes Daft and Lengel [1986]’s multiplicity of cues and language variety. According to media richness theory and media synchronicity theory, the use of media with high symbol variety is assumed to facilitate and promote communications among virtual team members. Therefore, it is expected that the media symbol variety is positively associated with group performance in virtual teams. Furthermore, online relationship building is expected to mediate the impacts of symbol variety on the performance. To confirm the suppositions, a controlled lab experiment was conducted with 60 undergraduate students as subjects. In the experimental virtual teams, subjects were allowed to communicate with other members using text-based messenger with emoticons. Subjects in the control virtual teams were allowed to communicate using only text-based messenger. The direct impact of symbol variety on group performance in virtual teams was found insignificant. However, the online relationship was found to completely mediate the positive impact of symbol variety on group performance. The implications and limitations of this study are also discussed for future research.
모바일 앱 포트폴리오 전략이 모바일 개발자의 성과에 미치는 영향
김민성,이웅장,임건신 한국경영학회 2022 經營學硏究 Vol.51 No.2
What mobile app development strategy should the developer consider to survive and grow in hypercompetitive mobile application market? Mobile app market is one of the most rapidly growing segment in software market. Although mobile app market is a promising area, this positive perspective is not consistently applicable to app developers. In extremely competitive mobile app market, application developers would need to carefully consider and formulate app development strategies for success. To define the strategies, product portfolio management composing with app development speed, diversification speed, and switch speed is introduced. Quantitative analysis validating the statistical relationship between portfolio strategies and app developer’s financial performance is conducted. For this analysis, data from app developers with worldwide cumulative revenue estimate of over $100,000 were collected. As a result of data analysis, positive relationship between app development speed and developer’s financial performance was supported whereas diversification speed and switch speed had negative relationship with revenue. Theoretically, this research differs from the previous mobile app related studies. While previous studies used app ranking or user ratings as proxy for app performance, this study uses estimated sales volume as dependent variable which reflects more accurate and empirical performance.