• 대한건축학회논문집:계획계
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• 제35권1호
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• pp.99-106
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• 2019

This study aims to recommend the proper Color rendering index (CRI), the Correlated Color Temperature (CCT), and illuminance levels of Light-Emitting Diode (LED) lighting based on the analysis of the criteria of the current CRI, the CCT, and illuminance levels in merchandising spaces with LED lighting conditions. It would be a basic material to apply in line with user preference for LED merchandising lighting. To this end, it examines relevant literature review on the experiments designed to test whether lighting characteristics affect brightness perception, color appearance, and pleasantness. Highly saturated colors appear brighter than low saturated colors. Two lighting applications - grocery and clothing shop - were created in elaborating the effect of LED lighting characteristics of CRI on color appearance and the CCT and illuminance on pleasantness. The findings show that the criteria of CIE Ra<80 are appropriate to provide better color appearance of illuminated products in terms of LED lighting that can enhance color saturation, particularly for the red color. Furthermore, 2700 K and less than 500 lux for grocery, 4000 K and more than 500 lux for clothing shop are found to be the proper the CCT and illuminance levels respectively to bring better preference under LED lighting.

• 품질경영학회지
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• 제50권3호
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• pp.545-570
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• 2022

Purpose: The purpose of this study was to explore dimensions to improve airline non-face-to-face(untact) service quality and identify shadow work dimensions in the digital environment among them. Methods: This study conducted mixed method. First of all, For finding out the dimensions of airline untact service quality, in-depth interviews were conducted from passengers. The collected data through the survey were analyzed using improved importance-performance analysis(IPA). Second, An online survey was conducted to quantitatively analyze user perception about airline untact service quality, and the importance performance of service quality at each dimension was identified through the revised IPA method. Results: The results of this study are as follows; Through in-depth interviews, 11 dimensions found out and 32 measurement items were developed. and then, through the revised IPA analysis, passengers were highly satisfied with "Cleanliness of in-flight service" and "Reliability of self check-in". Also, We found 3 shadow work dimensions such as "Ease of use of self check-in", "Usefulness of self check-in", and "Responsiveness of self check-in". Conclusion: Airline service providers have to keep high-satisfaction services and urgently improve less satisfied services. In particular, the dimensions related to shadow work have to be improved.

• 한국식생활문화학회지
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• 제38권2호
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• pp.99-111
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• 2023

This study compares and analyzes changes in users' perceptions of industrial catering food service quality before and after COVID-19. The survey enrolled 226 subjects at five industrial catering establishments in Seoul and Gyeonggi Province; a total of 204 customers with complete data were included in the final analysis. Factor analysis was conducted to verify convergence validity and construct reliability; results pertaining to 'service and environmental hygiene' and 'quality of food' were extracted. Among the general variables of food service quality, differences were obtained in the user's perceptions of food service qualities according to gender, education, and marital status. Our results revealed that women, low education, and married people perceived significant differences in all attributes before and after COVID-19. Additionally, varied altered perceptions were determined for service quality according to the occupations of the subjects. However, no differences were obtained for pleasant dining environment in the 'service and environmental hygiene factor' and variety of desserts in the 'food quality factor'.

• 한국멀티미디어학회논문지
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• 제25권4호
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• pp.649-659
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• 2022

The most important factor in pre-school children's psychological perception is ease of learning, and the closest measure is "natural" interaction. This study aims to explore the potential of tangible user interfaces (TUI) for AR collaboration for children's cognitive development. The conceptual model is constructed by analyzing physical interaction, spatial perception and social collaboration on the usability of TUI, to explore the role of TUI in pre-school children's cognition. In the empirical study, children aged 3-6 were taken as research objects. The experimental tool is "Plugo" education application. Parents answered questionnaires after observing their children's use. Research shows that physical interaction are the most critical factor in TUI. TUI is beneficial to the cultivation of spatial ability. The results are as follows: 1. Cronbach's Alpha and KMO were 0.921 and 0.965, which were significant and passed the reliability and validity test. 2. Through confirmatory factor analysis (model fit index, combinatorial validity), we found that physical interaction were closely related to usability. 3. The path analysis of the relationship proves that usability has a significant impact on the cultivation of pre-school children's spatial ability.

• 정보관리학회지
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• 제36권1호
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• pp.137-168
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• 2019

이 연구의 목적은 대학도서관 이용자의 공동체의식과 대학도서관 서비스품질 평가, 이용자만족도 및 충성도를 측정 및 분석하여 대학도서관 이용자의 공동체의식이 이용자만족도 및 충성도에 미치는 영향 관계를 규명하고자 한다. 이를 위해 연구모형과 연구가설을 설정하였다. 가설 검증을 위하여 J대학교 중앙도서관을 이용한 경험이 있는 학생들을 대상으로 최종 282부의 유효표본을 분석에 사용하였다. 측정변수들의 평균값을 기술통계량으로 분석하였으며, 가설 검증을 위해 Hayes의 PROCESS macro프로그램 모형 4번과 6번을 사용하여 매개효과분석을 실시하였다. 이 연구의 결과, 1) 대학도서관 이용자의 공동체의식은 대학도서관 서비스 품질평가에 따라 이용자만족도에 유의한 영향을 미치는 것으로 나타났다. 대학도서관 이용자의 공동체의식을 구성하는 요소인 서비스 혜택 지각 및 충족감, 상호영향의식이 통계적 유의수준 하에서 서비스 품질평가에 정(+)의 영향을 미치며, 이를 매개로 이용자만족도에 정(+)의 영향을 미치는 것으로 나타나, 대학도서관 이용자의 공동체의식이 높을수록 서비스 품질평가가 높으며, 이를 통해 이용자만족도가 높아진다는 것을 알 수 있었다. 2) 대학도서관 이용자의 공동체의식은 대학도서관 서비스 품질평가와 이용자만족도에 따라 이용자충성도에 유의한 영향을 미치는 것으로 나타났다. 대학도서관 이용자의 공동체의식을 구성하는 요소인 서비스 혜택 지각 및 충족감, 상호영향의식이 서비스 품질평가를 매개로 이용자만족도에 통계적으로 유의한 영향을 미치고(가설1), 이용자만족도를 매개로 통계적 유의수준 하에서 이용자충성도에 정(+)의 영향을 미치는 것으로 나타났다. 따라서, 대학도서관 이용자의 공동체의식이 높을수록 서비스 품질평가가 높고, 이용자만족도가 높아지며, 이를 통해 이용자충성도가 높아진다는 것을 확인할 수 있었다.

• 한국IT서비스학회지
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• 제10권3호
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• pp.21-30
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• 2011

Expectation for improvement of creativity and problem-solving capability has increased the creative robotics classes in the form of after-school activity in more than half of total elementary schools. While Ministry of Education, Science and Technology has promoted 'Green IT Guidelines' as a part of 'Eco-friendly Green School Development Project', the Green issues have not been considered enough in those creative robotics classes. In this paper, we would like to address the Green issues, especially in the r-Learning services based on UCR (User Created Robots). First, trend of green IT education, r-Learning services and UCR are reviewed. And the current status of eco-related operations and teachers' perception in the robotics classes of elementary schools is investigated. Examples of Green UCR are also searched and green programs based on the three kinds of UCR, UC-TR, UC-AR, UC-CR, are explored. Finally, we propose action plans to promote the UCR-based r-Learning service reflecting green issues.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2004년도 춘계학술발표대회 논문집
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• pp.86-90
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• 2004

The whole image of circulation occupied with user has duplicated inter-relationship. It means many situation exist simultaneously, and the character of space factors are completed by the inter-relationship of the detailed structure. The purpose of this study is on the proper notation for circulation analysis of the sequential space structure which is constructed by the formal constituent and the change of visual circumstance influence on the action of user. This study investigate the possibility of notation by arranging the analysis method of the visual space and focusing on the research for the visual perception behaviour of user being applied various space, and the possibility of application as a method of space design.

• Asia pacific journal of information systems
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• 제25권2호
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• pp.239-264
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• 2015

This study aims to investigate the effect of message content and source user identity on information diffusion in Twitter networks. For the empirical study, we collected 11,346 tweets pertaining to the three major mobile telecom carriers in Korea for three months, from September to December 2011. These tweets generated 59,111 retweets (RTs) and were retweeted at least once. Our analysis indicates that information diffusion in Twitter in terms of RT volume is affected primarily by the type of message content, such as the inclusion of corporate social responsibility activities. However, the effect of message content on information diffusion is heterogeneous to the identity of the information source. We argue that user identity affects recipients' perception of the credibility of focal information. Our study offers insights into the information diffusion mechanism in online social networks and provides managerial implications on the strategic utilization of online social networks for marketing communications with customers.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2003년도 봄 학술발표회 논문집
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• pp.321-326
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• 2003

As the computer and computer graphic technology have been progressed, the virtual reality(VR) technology has been issued. The most important objective for VR system is to provide a reality to the user. Therefore, it is necessary to satisfy the perception of human. In recent years, more effective VR system has been studied and developed by many people. In this paper, the Information System of User Location(ISUL) is proposed. ISUL is used to improve a process of In-Service Inspection work. ULBIS provides a high degree of efficiency for In-Service Inspection process and makes inspectors get information about ISI exam report in web environment. In addition, ISUL provides a navigation, Isometric drawing reference viewer and Web-based ISI Database Reference System in web environment.

• 디지털융복합연구
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• 제9권1호
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• pp.115-124
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• 2011

The property of the mobile phone is taking important role to choose it. In the present situation, exploring, comparing and analyzing the important properties of regular mobile phone(feature phone) and smart phone are very meaningful study. Therefore, the survey was carried out to get the properties of feature phone and smart phone and analyze the difference of those phones. And proposed the important variables for customer satisfaction which must be given priority. The result showed that 'design' and 'Quality' are important to both mobile phone user groups. The problems with mobile phones currently in use were 'poor performance' to feature phone users and 'expensive charge' and 'poor A/S' to smart phone users. Two groups also showed significant difference with the customer satisfactions, and smart phone user group showed higher satisfaction. For smart phone user group, four factors are induced from the properties but 'Hardware Quality' (representing 'call Quality', 'A/S', 'Convenience to use', 'Battery life') and 'Design & Function'(representing 'Internet', 'Convergence Functions', 'Design, 'Color') have significant and positive effects on Customer Satisfaction.