• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2006년도 하계학술발표대회 논문집
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• pp.820-825
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• 2006

It is necessary to correspond to building users' claims rapidly as much as possible in order to satisfy user's need, because the final tarket of building maintenance service is user of building. This paper investigates the time taken for receiving users' claims and the time taken for the service organization to respond to the claims in the office building; types of claims and service responses are analysed, through which the response characteristics of the maintenance management organization are evaluated with respect to users' claims. Throughout extensive simulation analysis, important performance measures such as mean time to repair and utilization of maintenance personnels have been investigated.

• Journal of Information Technology Applications and Management
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• 제27권6호
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• pp.117-139
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• 2020

This research analyzes the factors that affect the consumers' participation of the internet-only banks, and suggests effective financial sales strategies and methods to attract more users. Through prior research review and interviews with experts, the factors affecting the consumers to sign up for the internet banks are identified. The actual user data from the internet banks are used for the analysis, providing more systematic and credible results. The research shows that social media buzz positively affects the user growth, proving Granger Causality relation of increasing social media buzz on K Bank increases K Bank users. The research also shows that marketing activities noticeably impacts K Bank's positive user growth. On the other hand, the event of Kakao Bank's grand opening shows negative effect. The results from the research validates the need for periodical monitoring process of social media buzz. Moreover, the research proves that the integrated analysis of social media buzz and marketing effect is also essential.

• International Journal of Internet, Broadcasting and Communication
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• 제13권1호
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• pp.82-89
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• 2021

Recently, applications are increasing the importance of security for published documents. This paper deals with data-publishing where the publishers must state sensitive information that they need to protect. If a document containing such sensitive information is accidentally posted, users can use common-sense reasoning to infer unauthorized information. In recent studied of peer-to-peer databases, studies on the security of data of various unique groups are conducted. In this paper, we propose a security framework that fundamentally blocks user inference about sensitive information that may be leaked by XML constraints and prevents sensitive information from leaking from general user. The proposed framework protects sensitive information disclosed through encryption technology. Moreover, the proposed framework is query view security without any three types of XML constraints. As a result of the experiment, the proposed framework has mathematically proved a way to prevent leakage of user information through data inference more than the existing method.

• Educational Technology International
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• 제6권1호
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• pp.65-79
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• 2005

In a widely distributed environment, many occasions arise when people need to filter informationwith email clients. The existing information agents such as Maxims and Message Assistant have capabilities of filtering email messages either by an autonomous agent or by user-defined rules. FlexMA, a variation of FAMES (Flexible Asynchronous Messaging System) is proposed as an information filtering agent. Agents in our system can be scaled up to adapt user's various demands by controlling messages delivered among heterogeneous email clients. Several functionalities are split into each agent in terms of component configuration with the addition of multiple agents'cooperation and negotiation. User-defined rules are collected and executed by these agents in a semi-autonomous manner. This paper demonstrates how this design is feasible in a flexible message system.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2009년도 학술대회
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• pp.1351-1358
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• 2009

새로운 서비스 개발 초기 단계에서 지식의 창조는 서비스의 성공에 중요한 역할을 한다. 개발 초기 단계에서 사용자는 지식을 창조하는 데 중요한 자원으로 활용되며, 이를 위해 사용자와 개발자 간의 계속적인 상호 작용, 즉 사용자 관여가 필요하다. 사용자의 역할은 정보를 제공하는 역할, 자문하는 역할, 참여하는 역할, 3 가지로 나눌 수 있으며, 역할의 차이에 따라 지식 창조의 과정 또한 달라지게 된다. 이러한 배경에서 본 연구는 인터넷 서비스 개발 초기 단계에서 사용자의 역할에 따라 어떠한 지식 창조 과정을 거쳐야 실제 서비스 개발에 긍정적인 영향을 주는 지 알아보기 위해 2 가지의 신규 프로젝트를 대상으로 사례 연구를 실시하였다. 이러한 연구 결과는 개발 초기 단계에서 지식 창조의 과정과 사용자 역할 간의 관계를 규명함과 동시에 실제 서비스 개발을 위한 사용자 관여의 가이드라인을 제시할 수 있을 것이다.

• 한국전자통신학회논문지
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• 제7권5호
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• pp.1087-1093
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• 2012

본 연구는 스마트폰의 사용자경험 요소가 고객의 만족에 미치는 영향을 연구하였다. 사용자 경험요인은 선행연구를 바탕으로 유용성, 사용성, 감성, 브랜드 이미지로 하였고, 연구대상은 S사의 스마트폰 사용자 97명과 A사의 스마트폰 사용자 94명을 대상으로 하였다. 연구결과 스마트폰의 사용자 경험이 만족에 미치는 영향은 유용성 44.0%, 브랜드 이미지가 26.2%, 감성이 19.6%, 사용성이 17.3%의 영향을 미치는 것으로 나타났다. 유용성과 감성은 기술디자인의 핵심적인 요소로서 사용자지향의 설계에 중점을 두었을 때 만족을 높일 수 있다는 점에서 스마트폰 관련 설계자들이 가장 고려해야할 사항이라 할 것이다. 이러한 관점에서 S사 제품의 감성적 측면이 만족에 영향을 미치지 않고 있다는 것은 개선이 시급하다고 하겠다.

• 정보관리학회지
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• 제32권1호
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• pp.63-84
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• 2015

이용자들은 도서관을 이용하기 위해 개인정보를 도서관에 제공해야 한다. 본 연구에서는 이러한 이용자들을 대상으로 도서관 이용자 프라이버시에 대한 인식을 조사하고 프라이버시 관련 교육을 제공한 후 교육효과를 측정하고자 하였다. 그 결과, 첫째, 본인 프라이버시에 대한 관심도, 도서관 이용자 프라이버시 문제의 심각성, 프라이버시 침해 가능한 도서관 데이터요소 등에서 교육 후 인식변화가 크게 일어났다. 둘째, 이용자들은 현재 도서관에서 수집하고 있는 이용자에 대한 서비스 기록이 이용자 프라이버시를 어느 정도 침해할 것이라고 생각하고 있는지에 대해 25개 항목 모두에서 교육 후 큰 인식 변화가 있었다. 셋째, 도서관 이용자 프라이버시 보호를 위해 도서관 및 사서가 수행해야 할 노력에 대해 15개의 문항 모두 교육 후 평균값이 유의하게 올라갔음을 알 수 있었다. 넷째, 도서관 이용자는 도서관 기록의 열람 및 취급에 있어 정당한 절차가 필요하다고 인식하게 되었으며 이를 위한 절차의 필요성에 공감하고 있다는 것을 알 수 있다. 다섯째, 도서관 기록이 유출되었을 경우 이용자가 느끼는 심각성은 매우 높은 것으로 나타났다.

• 품질경영학회지
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• 제44권2호
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• pp.409-424
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• 2016

Purpose: Present study was designed to examine the casual relationships among service quality, self-efficacy, perceived usefulness, user satisfaction and Continuous Usage in new technology-based banking system. Also, we intended to testify the moderating effects of user experience period in causal model. We applied path analysis model in order to test the hypotheses and research model. Methods: Survey tool, that is, questionnaire has obtained validity through literature survey, exploratory survey and pretest and sample 279 was selected. For statistical treatment of pretest and main analysis, SPSS20.0 and AMOS 20.0 were employed and structural equation model was employed as analysis method. Results: Result of this study shows as follows. All factors have an effect on user satisfaction and Continuous Usage, and we found that user experience period played moderating effect in causal relationship. Therefore, new technology-based banking system is found that the determinants of continuous usage intention is different according to the user experience period. Conclusion: Present study shows that self-efficacy in via of user experience period, there is a need to emphasize that the main consideration factor new technology-based banking system. However, present study has some limitations to additionally research in the future.

• International Journal of Internet, Broadcasting and Communication
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• 제10권1호
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• pp.71-76
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• 2018

The technology convergence of television, communication, and computing devices enables the rich social and entertaining experience through Smart TV in personal living space. The powerful smart TV computing platform allows to provide various user interaction interfaces like IR remote control, web based control, body gesture based control, etc. The presently used smart TV interaction user control methods are not efficient and user-friendly to access different type of media content and services and strongly required advanced way to control and access to the smart TV with easy user interface. This paper propose the optical wireless communication (OWC) based remote controller design for Smart TV using smart device Flashlights. In this approach, the user smart device act as a remote controller with touch based interactive smart device application and transfer the user control interface data to smart TV trough Flashlight using visible light communication method. The smart TV built-in camera follows the optical camera communication (OCC) principle to decode data and control smart TV user access functions according. This proposed method is not harmful as radio frequency (RF) radiation does it on human health and very simple to use as well user does need to any gesture moves to control the smart TV.

• 디지털산업정보학회논문지
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• 제12권1호
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• pp.119-129
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• 2016

Rapid changes to the paradigm of smart media have created a communication environment through merging with various media such as IoT technology, which is internet of things. Among them, user' need for a start home, which is one of people living conditions, has been growing and values of the communication environment in a living space using a smart mirror have been growing. However, studies on figuring out behavior and analyzing needs of family members who actually use the living space are insufficient. This study is to draw the service system of the home smart mirror by analysis of behavior and needs of users of the living space. For a research method for analysis of behavior of family members, I wrote two kinds of user's experience maps, which are frequency of use of a quantitative space of a living space and space's important value scales by persona study and depth interview. Through this, applied spaces of the home smart mirror (living room, bathroom, powder room, dress room, porch, kitchen, room) and the types of user needs (type of providing information, entertainment type, control type, service type) have been drawn and statistical analysis methodology has been utilized for a research of user preferences in regard to correlation between living spaces and types of user needs based on a survey. As a result of analysis of ages and gender, types of user needs by space have been drawn and the service system of the home smart mirror has been drawn. It would be utilized as a basic material for various contents development and design using the smart mirror in the future.