• 한국전자통신학회논문지
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• 제17권6호
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• pp.1167-1174
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• 2022

본 연구에서는 실제문제 해결을 위한 가상현실 모델링에서 물리적 형태를 전자적으로 모사하는 것 뿐 아니라 모사의 대상이 되는 객체와 사용자의 상호관계까지 다루어야 한다고 보았다. 이를 위하여 실제공간에서 일어나는 사용자와 공간의 상호작용 요소를 가상현실 적용에 추가하는 방안을 제안하였다. 본 연구는 공중화장실의 안전문제 해결을 위한 가상현실 모델링을 배경으로 하는데, 가상현실 모델링에 사용자와의 상호작용 요소를 추가하기 위하여 합리적인 원칙이 있어야 한다고 보고 범죄예방을 위한 환경설계 기본전략을 활용하였다. 공중화장실 위험도 평가를 위한 가상현실 모델을 구축하기 위하여 자연 감시, 영역성 강화, 활동 활성화, 유지관리를 기준으로 공중화장실과 사용자간의 상호작용요소를 도출하였다. 또한, 도출한 상호작용요소의 타당성을 검증하고자 전문가의 의견과 각 요소에 대하여 산출한 위험도와 비교하였다. 그 결과, 범죄예방을 위한 환경설계 기본 전략과 같이 일정한 원칙에 따라 상호작용 요소를 도출한 것이 타당성 있음을 보였다.

• 한국병원경영학회지
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• 제19권3호
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• pp.43-52
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• 2014

We empirically show that the effect of mobile EMR's technological characters on system qualities and user satisfaction. For the study, the relationship among technological characters of mobile, EMR's system quality, EMR's information quality, and user satisfaction were modelled and validated with hypotheses. An empirical test was performed for a path model using structural equation modeling on samples of 148 nurses in hospitals from various size and region. This study find that, for the overall sample, there are positive relationships among the technological characters of mobile, EMR's system quality, EMR's information quality, and user satisfaction. And the results support that mobile is an effective method for EMR. Findings of this study have several theoretical and practical implications as follows : First, this study empirically tested the relationship among technological characters of mobile, EMR's system quality, EMR's information quality. Second, the study shows that the technological characters of mobile should be considered for advance of EMR system's quality in mobile environment. And lastly, this study can practically suggest mobile healthcare information system for process effectiveness.

• ETRI Journal
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• 제38권3호
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• pp.589-598
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• 2016

An application that has a simple user interface not only motivates a user to continue using the application, but also enables the user to develop their mental model for the application - the like of which is a product of their interaction with the application. In the information systems literature, little empirical research has been undertaken on the effects of the mental model and motivation on smartphone users' behavioral beliefs. Therefore, the aim of this study is to suggest a research model that can examine the following: 1) the effects that the mental model has not only on smartphone users' behavioral beliefs (that is, perceived usefulness and ease of use of an application) but also on their behavioral intention to use an application and 2) the effects that smartphone users' intrinsic motivation has on their behavioral beliefs through an expansion of the mental model. A survey is conducted, and structural equation modeling is then used to analyze the survey data. The results, through consideration of variables such as intrinsic motivation, perceived usefulness, perceived ease of use, and user satisfaction, indicate that the mental model has an indirect effect on a user's intention to use an application.

• Agribusiness and Information Management
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• 제11권2호
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• pp.16-24
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• 2019

BRIS has been established by the Ministry of Agriculture, Food and Rural Affairs since 2011 under Article 21 of the Act on the Preservation, Management and Utilization of Agricultural Life Resources. It is an information service that provides information related to agricultural life resources in connection with the Rural Development Administration, the Forest Service, and Korea Seed & Variety Service, Agricultural Resources and Agricultural and Livestock Quarantine Headquarters. The purpose of this study is to evaluate how the users assess the information system quality (information quality, system quality) for the current Bio Resource Information Service (BRIS). Ultimately, the structural equation modeling analyzes the causal relationship between each variable and how it responds to the user's continuous use intention. As a result, information quality among information system quality and information quality among system quality used as the main variables for the evaluation of BRIS were statistically positively influenced by users' perceived usefulness, while system quality It has been analyzed to have a positive effect on the sustained use intention. The user's continuous use intention is positively influenced by the information system quality and perceived usefulness at a statistically significant level. Especially, the perceived usefulness plays a role in mediating the user's continuous use intention.

• 한국멀티미디어학회논문지
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• 제17권11호
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• pp.1335-1344
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• 2014

In architectural design, the user is one of the most important factors for the design task as well as the standard for evaluating the value of the built environment after its construction. Recently, accidents, such as fires and breakdowns, in huge and complicated buildings have increased the importance of user behavior simulation. The Korean government has tried to establish a regulation for the prevention of accidents in the built environment. This is regarded as a significant step forward for providing a safer and more appropriate environment for users. However, the existing technologies related to analyzing user behavior only simulate simplified situations. Such simulations are not enough to evaluate accurately the designed alternatives because buildings and spaces contain more complicated information than what we have conventionally considered. Thus, we propose that the advanced agent can interact with the architectural context. It can understand not only the physical situation but also how the users affect this situation. In order to realize this, we adopted the concept of affordances as the perceived action possibilities for the simulation environment.

• The Journal of Asian Finance, Economics and Business
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• 제6권2호
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• pp.203-212
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• 2019

A system Integrator (SI) makes a consortium with multiple providers of hardware and software solutions to sell an information system. The success of information systems (IS) mainly depends on establishing a trustful relationship between SI supplier and client, and delivering high-quality system. However, the determinants of trust and system quality have been investigated mostly from the perspective of s ystem buyers rather than system sellers. This study examines the influence of key variables that SI can handle to improve trust and system quality which finally leads to user satisfaction toward SI. This study adopts resource complementarity, user participation and information sharing as the key variable then builds a research model to explain their relationships to user satisfaction. Respondents are recruited from 251 firms that have built any information system in recent two years in South Korea. Results of partial least square (PLS) modeling analysis show that both resource complementarity and information sharing have positive relationships with trust. Also the relationships between trust, system quality and user satisfaction toward S.I are supported. In addition, the mediating roles of trust and system quality are identified. We discussed some of the key managerial and theoretical implications of the paper and suggested further research directions.

• 유통과학연구
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• 제19권9호
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• pp.5-17
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• 2021

Purpose: As mobile devices are commonly used and contact-free services are widespread due to the COVID-19 pandemic in the recent distribution environment, this study suggests retail strategies for consumers using high-speed railways. To this end, we analyzed how consumer perception on technologies necessary for use of mobile apps is related to the attitude that drives consumers to continue using the app services. Research design, data and methodology: Based on the extended unified theory of technology acceptance and use of technology model by Venkatesh, Morris, Davis and Davis (2003), we added variables proposed by existing theories that studied the technology acceptance model from multiple perspectives and empirically analyzed the relationship between user satisfaction and use intention with structural equation modeling. Results: As expected, factors necessary for the use of app services such as performance expectancy, social influence, price value, facilitating conditions, security, and aesthetics had positive effects on user satisfaction, whereas the effect of effort expectancy on user satisfaction was rejected. And user satisfaction was found to have a significant effect on intention to use. Conclusions: The results provide implications that strategic retail management of the above factors can motivate passengers to continuously use high-speed railways.

• Journal of Korea Trade
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• 제26권3호
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• pp.1-22
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• 2022

Purpose - Social media platforms have presented individuals with an opportunity to create and maintain their social relationship through the use of social media services. However, such social relationship has a negative influence on users' interest in social media. Design/methodology - Using structural equation modeling, this study seeks to examines the effects of different social media conflicts (individual and social conflicts) on users' psychological internal state, especially user apathetic behavior Findings - The findings confirm that, among social media conflicts, social-related conflict, especially social interaction overload has a negative effect on cognitive resonance, while individual conflict has the highest effect on cognitive dissonance. Also, cognitive dissonance has a much greater effect than cognitive resonance on user resistance, this means that users' negative perception of social media has a greater influence on their resistance. Lastly, user's resistance was found to have a positive influence on user's apathetic behavior. Originality/value - In other to capture social media Apathetic behavior, this study focus on social media conflict perspective, which includes social-related conflict and individual conflict, which are found to influence users' internal states towards social media and further induce social media behavior. This study is unique because it is among the first to explore social media apathetic behavior by focusing on the influence of both external social media conflict and internal state. Also, this study proposed that social related conflict has a higher negative influence on WeChat user than individual related conflict.

• 대한조선학회 특별논문집
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• 대한조선학회 2013년도 특별논문집
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• pp.35-41
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• 2013

Nowadays, automated modeling system for steel margin based on interactive user interface has been developed and applied to the production design stage. The system could increase design efficiency and minimize human error owing to recent CAD technique. However, there has been no approach to the pre-nesting design stage at all in early modeling process especially where ship model should be handled at more than two design stages using AVEVA Marine. A designer of the design stage needs artificial intelligence system beyond modeling automation when 3D model must be prepared in early modeling process using AVEVA Marine because they have focused on 2D nesting traditionally. In addition, they have a hard time figuring out the model prepared in previous design stage and modifying the model for steel purchase size in early modeling process. In this paper, artificial intelligence modeling system for automated application of steel margin in early modeling process using AVEVA Marine is developed in order to apply to the pre-nesting design stage that can detect effective segments before a calculation to find if a segment locates near block butt boundaries by filtering noise segments among lines, curves and surface intersections based on IT big data analysis.

• 한국HCI학회논문지
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• 제2권2호
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• pp.19-26
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• 2007

이 논문에서는 증강현실을 이용하여 디포머블(Deformable)한 3차원의 도자기 모델을 손을 이용하여 자연스러우면서도 직관적으로 변형시키고, 이를 실제 물체들과 같이 디스플레이 해 줌으로써 실재감을 느낄 수 있는 새로운 시스템을 제안한다. 제안된 시스템에서는 값비싸면서도 거추장스러운 장비를 사용하지 않고도 카메라와 마커의 상대적인 위치를 통해서 손의 위치를 알아내게 되고, 일반적으로 물체를 변형시킬 때 사용하는 손의 움직임을 본떠 6가지 형태의 모델링 인터페이스 및 버튼형 인터페이스를 제공한다. 그리고 실시간으로 변형된 모델에 대한 결과를 증강현실을 이용하여 디스플레이 해 주는 방법을 통해서 물체의 크기 및 모양을 좀 더 실재감 있게 느낄 수 있게 한다. 이러한 방법은 비단 도자기뿐만 아니라 다양한 분야에 활용 가능하며, 보통 컴퓨터가 있는 집에 화상카메라가 하나 정도는 있다는 점에서 교육적인 용도로써의 활용 가능성이 상당히 크다 할 수 있을 것이다.