• 한국멀티미디어학회논문지
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• 제7권3호
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• pp.388-398
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• 2004

본 논문은 인터넷 상의 다수의 참여자가 분산가상환경에서 협업을 수행하는 경우 발생되는 전송 메시지트래픽을 조절하는 기법에 초점을 맞추고 있다. 가상환경에서 교환되는 정보의 양을 줄이는 방법을 상태 갱신메시지 필터링 기법이라고 부르며 이는 가상환경의 확장성을 향상시키는데 필수적인 처리과정이다. 대표적인 필터링 방법인 공간분할 기법은 전체 환경에서 작은 관심영역으로 분할하여 일관성이 유지되어야 하는 영역의 크기를 조절하는 방법을 사용하여 메시지 트래픽을 줄인다. 기존의 공간분할 기법은 시뮬레이션 이전에 관심영역에 대한 정보가 결정되어 사용되므로 동적 환경변화에 대한 적응성과 융통성이 부족하다는 단점을 가지고 있다. 본 논문에서는 관심영역 관리방법을 시스템 수행중에 재구성함으로써 적응성을 높인 동적 관심 영역 모델을 제안하고자 한다. 환경변화요소를 반영하기 위하여 제안된 모델은 관심영역의 다중분할과 다중 일관성 유지 알고리즘의 사용하여 효율적인 시스템 자원 소비를 가능하게 하였다. 제안된 기법의 성능평가를 위하여 가상으로 아바타의 행위를 발생시키고 갱신 메시지 트래픽을 측정하여 기존 모델과 비교하였다. 결론적으로, 제안된 모델은 다수의 참여자의 수용이 요구되는 MMORPG나 가상커뮤니티 시스템의 관심 영역 관리 시스템에 활용될 수 있다.

• 한국IT서비스학회:학술대회논문집
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• 한국IT서비스학회 2007년도 춘계학술대회
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• pp.467-473
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• 2007

사용자의 가상커뮤니티 활동성이 기술 수용에 미치는 영향을 P2P시스템의 파일공유서비스를 중심으로 알아보려고 한다. P2P시스템 재사용의도가 커뮤니티 활동성과 몰입에 의해 영향을 받을 것이라는 강한 추측에도 불구하고 이를 반영한 연구는 아직 없었다. 따라서 본 연구는 사용자의 가상커뮤니티 활동성이라는 개념을 새롭게 도출하고, 사용자의 가상커뮤니티 활동성이 어떠한 경로로 P2P시스템 재사용에 영향을 주고 있는가를 실증적으로 검증하는 것을 목적으로 한다.

• 한국전자거래학회지
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• 제11권2호
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• pp.49-69
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• 2006

가상커뮤니티가 기업의 효과적인 마케팅 수단으로 인식되고 있으며, 인터넷 사용자의 인터넷 사용의 주요한 동인이 되고 있음에도 가상커뮤니티 성과의 영향요인에 관한 연구가 아직까지 활발하게 진행되지 못하고 있다. 또한 현재까지 가상커뮤니티 성과의 대표적 성과변수인 사용자 충성도에 영향을 미치는 요인에 관한 연구들은 일부요인들에 대해 진행되었으나 영향요인들을 보다 종합적으로 포함하는 연구는 시도되지 못하였다. 본 연구에서는 가상커뮤니티 성과의 영향요인에 관한 통합적인 연구모형을 제시하고 이에 대한 실증분석을 행하였다. 본 연구모형에 포함된 영향요인은 가상커뮤니티 운영요소 개인특성, 유용성, 신뢰 몰입 등 5가지 변수이며 성과변수로서는 가상공동체의식, 충성도 구매의도 등 3가지이다. 실증분석을 위한 자료 수집은 가상커뮤니티 이용자를 대상으로 설문조사를 실시하였고 292개의 유효한 응답설문으로 LISREL 분석을 이용하여 연구모형 및 가설검증을 실시하였다. 통계분석 결과 가상커뮤니티 운영요소 및 개인특성이 가상커뮤니티 성과의 영향요인이 될 수 있음을 확인하였다. 또한 매개변수들로서 유용성, 신뢰, 몰입이 유의한 것으로 분석되었으나 몰입과 충성도와의 관계는 유의하지 않은 것으로 나타났다. 마지막으로 성과 변수들 간의 인과관계가 모두 지지되었지만, 성과변수들 중 가상공동체의식의 경우는 새로운 지표의 개발이 필요한 것으로 밝혀졌다.

• 한국의류산업학회지
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• 제11권2호
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• pp.210-218
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• 2009

The Purpose of this study is to demonstrate Storytelling as an effective device for Fashion Design by establishing relationship between Fashion Design Process and Storytelling. Through researching a social background and a concept of storytelling, found that story used interactively is a powerful tool for attention, understanding and change in both individuals and communities. Analysed the elements and the structure of storytelling and Fashion Design Process, by researching preceding researches. Therefore, we proposed a new four elements -text factor, visual factor, audio factor and virtual factor- and four steps (1)exploring stories, (2)planning a story, (3)building the story, (4)do storytelling- of storytelling and four steps-(1)gathering and analysing informations, (2)building a concept, (3)planning and developing a design, (4)do evaluation and make decision- of fashion design process. Through comparative analysis, we found a closeness between two structures, a use of common factors and also found characteristics to be considered in each stage. In the first stage, we found text, visual and audio factor as common factors. In the second stage, we suggested text and visual factor as common factors and also suggested clarity, realism and probability as characteristics. In the third stage, we found text, visual and virtual factor and also found dynamism, immersion and continuity. In the last stage, we suggested text, visual, virtual and audio factor and also suggested presence and interactivity as characteristics.

• 대한인간공학회지
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• 제32권5호
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• pp.475-480
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• 2013

Objective: In this study, virtual reality was adopted to consider ergonomic factors in yacht design. Virtual human which is the same actual human was created in virtual environment using Digital Human Modeling which has been used in the manufacturing communities to design better workplaces and maximize the safety of workers. Background: During the past 40 years yachting has expanded from being, generally speaking, a minority sport - too expensive for the large majority of people - into a major recreational activity practiced by millions all over the world. Many new yacht designs have appeared and number of professional, as well as amateur designers has increased steadily. But they had not considered ergonomic factors in yacht design. Method: Worker's posture, traffic line and workload had been analyzed in sailing yacht. After the caution level was evaluated, we pointed out clues which had high workload and interference. To reduce workload, we applied ergonomic principles for improving working conditions and environments in Digital Human Model. Results: We found the space problems and workload of postures. Conclusion: (1) Unnatural posture of crews was sustained. (2) Workload that occurs in the human body was overloaded. (3) Crew's work space was very narrow. Application: This study will be applied the new ergonomic design of yacht.

• 디지털융복합연구
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• 제9권2호
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• pp.65-77
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• 2011

본 연구는 온라인 공동체에서 구성원들 간에 신뢰가 어떻게 형성 발전되는지를 살펴보기 위한 연구이다. 신뢰형성에 주요한 요인에 대한 이론적 고찰을 통해 본 연구는 사회적정체성과 지속적인 커뮤니케이션 활동을 주요한 요인으로 설정하고 이들과 신뢰(Trust)에 이르기 위한 매개변인들인 신뢰성 (Trustworthiness) 요소-Integrity (규범공유성), 선의(Benevolence), 개방성(Openness)-와의 관계를 살펴보았다. 이들 관계를 실증적으로 밝히기 위해서 본 연구는 국내 주요 온라인 사이트의 커뮤니티 구성원을 대상으로 설문을 실시하였다. 그 결과, 사회적정체성과 지속적인 커뮤니케이션이 신뢰성 (Trustworthiness)에 유의미한 영향을 주고 있었으며 신뢰성의 세 가지 변인(Integrity, Benevolence, Openness) 등은 기존의 연구와 유사하게 신뢰에 주요한 요소들임이 밝혀졌다.

• Journal of Information Technology Applications and Management
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• 제28권6호
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• pp.117-132
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• 2021

Based on the core value of the Q&A community, the contribution of knowledge and information has a great impact on users' community evaluation. As a small social group, the relationships and interactions among community members are quickly formed through information technology. As such, the cognitive evaluation of the relationship between community members will have an impact on the intention of information contribution. This research builds on the previous research based on the social exchange theory and establishes a dual model of swift guanxi in examining the relationship between guanxi and continuous knowledge contribution. In the current study, 305 survey questionnaires were used and 249 valid questionnaires were used for analysis. The analysis results are as follows: First, information support has a positive impact on dedication-based swift guanxi. While hypothesis between information support and constraint-based swift guanxi was not be supported. Second, emotional support has a positive impact on the formation of swift guanxi from a dual perspective. Third, the swift guanxi from the dual perspective has a positive impact on the intention of continuous knowledge contribution. Finally, although personal involvement has an adjustment effect, it is a downward adjustment effect, hypotheses are not supported. The current study offers theoretical and practical implications in field of knowledge management, specifically knowledge contribution in the virtual community.

• Asia pacific journal of information systems
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• 제19권1호
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• pp.63-82
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• 2009

Virtual community is a social aggregation to attain some goals in an IT-supported virtual space (Lee et al., 2002). As lots of virtual communities generate robust and reliable outputs with low control and low incentive, previous researchers was interested in the questions, "why do they participate?" or "how are they controlled?". But. as Katz (1964) said, the most important part of the high-performing organization is the behaviors of members in the organization. Therefore, this research is to examine the relationship between the performance and the behaviors of participants in the virtual community. First, we propose 6 types of behaviors related to high performance in the virtual community: 'Continuous Attendance', 'Complying with the organizational value, policies, and regulations', 'Protection', 'Suggestion for the improving', 'Self-training', and 'Favorable behavior'. The six types of behaviors are extracted from the framework of Katz (1964) and Brief and Motowidlo (1986). The reason why each behavior is positively related with high-performance is that those who continuously attend have more responsibility than temporary participants do; complying with the rules of a virtual community means that they may make more reliable outcome; 'Protection' is one of the prosocial-behaviors and those who protect the community may concern the benefit of the virtual community when they participate: those who suggest some ideas for improvement may contribute to the virtual community; 'Self-training' behavior means that participants really want to have high quality in their contribution: those who have 'Favorable attitude' consider other members in the virtual community when they participate. Then, we perform an empirical analysis with the survey from participants in the Knowledge service of Naver.com, to show those behaviors are associated with the high-performance. To make the measurement for the six behaviors, we use CVR (content validity ratio) method (Lawshe, 1975), interviewing 12 experts. The dependent variable, performance of participation, is measured by 'ratio of selected answer' given by the Naver.com. We use email survey. We sent 1200 emails to randomly selected participants in the knowledge service and received 282 responses. The results of our empirical analysis show that 4('Continuous Attendance', 'Suggestion for the improving', 'Self-training', 'Favorable attitude') are positively related to the performance, but 2('Complying with the organizational value, policies, and regulations' and 'Protection') are not significant. In line with Fitzgerald (2006), we expect that participants in the virtual community may behave similarly to employees in the off-line firms for the high performance. But 2 behaviors have different results. The reason that the 'Complying with the organizational value' behavior is not sufficiently related to performance is that the motivation of participants is more related to intrinsic pleasure or altruism than external reward. Also, the 'Protection' behavior has no significant relationship with performance, which means that the high-performing participants have little concern about the problems in the community.

• 한국언론정보학보
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• 제30권
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• pp.7-33
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• 2005

본 논문은 가상 커뮤니티 이용과 관련된 이용 욕구(needs) 유형들을 살펴보고 이용행위에 영향을 미치는 동기적 그리고 비동기적 요인들이 성별에 따라 차이가 있는지 여부를 분석하고 있다. 또한 동기적 요인인 이용 욕구와 비동기적 요인인 '지각된 행위통제(perceived behavior control)'에 따른 가상 커뮤니티 이용 행위 과정을 살펴보고자 하였다. 가상 커뮤니티와 관련된 연구문제들을 위해서 인터넷 카페와 동호회 활동을 하는 230명의 지역 대학생을 대상으로 설문조사가 실시되었다. 연구결과에 의하면 가상 커뮤니티 이용 욕구로 '관계지향성 욕구', '오락 욕구, 그리고 '도구적 욕구' 요인이 추출되었다. 그러나 이용 욕구나 '지각된 행위통제'에 대한 성별 변인의 영향은 거의 없는 것으로 나타났다. 또한 가상 커뮤니티 이용 행위와 관련된 경로분석은 동기적 요인이 비동기적 요인보다 행위에 많은 영향을 미치는 것을 보여주었다. 또한 동기적 요인 가운데 오락적 욕구는 이용 행위에 가장 많은 영향을 미치는 것으로 나타났다. 이는 정보기술을 통한 공동체 회복이 가능한가에 대해 다소 부정적인 결과를 보여주는 것이다.

• International journal of advanced smart convergence
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• 제4권2호
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• pp.109-119
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• 2015

The interaction between wireless sensors such as Internet of Things (IoT) and Cloud is a new paradigm of communication virtualization to overcome resource and efficiency restriction. Cloud computing provides unlimited platform, resources, services and also covers almost every area of computing. On the other hand, Wireless Sensor Networks (WSN) has gained attention for their potential supports and attractive solutions such as IoT, environment monitoring, healthcare, military, critical infrastructure monitoring, home and industrial automation, transportation, business, etc. Besides, our virtual groups and social networks are in main role of information sharing. However, this sensor network lacks resource, storage capacity and computational power along with extensibility, fault-tolerance, reliability and openness. These data are not available to community groups or cloud environment for general purpose research or utilization yet. If we reduce the gap between real and virtual world by adding this WSN driven data to cloud environment and virtual communities, then it can gain a remarkable attention from all over, along with giving us the benefit in various sectors. We have proposed a Pub/Sub-based sensor virtualization framework Cloud environment. This integration provides resource, service, and storage with sensor driven data to the community. We have virtualized physical sensors as virtual sensors on cloud computing, while this middleware and virtual sensors are provisioned automatically to end users whenever they required. Our architecture provides service to end users without being concerned about its implementation details. Furthermore, we have proposed an efficient content-based event matching algorithm to analyze subscriptions and to publish proper contents in a cost-effective manner. We have evaluated our algorithm which shows better performance while comparing to that of previously proposed algorithms.