• Journal of Electrical Engineering and Technology
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• 제13권1호
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• pp.68-77
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• 2018

Regarding demand response (DR) by residential users (R-users), the users try to reduce electricity costs by adjusting their power consumption in response to the time-varying price. However, their power consumption may be affected not only by the price, but also by user convenience for using appliances. This paper proposes a methodology for appliance scheduling (AS) that considers the user convenience based on historical data. The usage pattern for appliances is first modeled applying the copula function or clustering method to evaluate user convenience. As the modeling results, the comfort distribution or representative scenarios are obtained, and then used to formulate a discomfort index (DI) to assess the degree of the user convenience. An AS optimization problem is formulated in terms of cost and DI. In the case study, various AS tasks are performed depending on the weights for cost and DI. The results show that user convenience has significant impacts on AS. The proposed methodology can contribute to induce more DR participation from R-users by reflecting properly user convenience to AS problem.

• 디지털융복합연구
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• 제18권10호
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• pp.381-387
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• 2020

본 연구는 국내 무인 편의점에서 중국과 한국인의 사용자 경험을 측정하는 것에 목적이 있다. 따라서 본 연구대상인 이마트24 셀프스토어 김포DC점을 경험한 적 있는 중국인과 한국인 사용자를 대상으로 심층 인터뷰를 실시하였다. 인터뷰는 피터 모빌의 허니콤 모델의 7가지 원칙에 따라 설정했다. 연구 결과, 중국인 사용자의 만족도는 한국인 사용자보다 높은 것을 알 수 있었다. 인간미를 중시하지만, 더 빠른 속도를 추구하는 사회문화의 영향으로 한국인 사용자는 이마트24 셀프스토어에 큰 불편함을 느끼는 반면, 중국인 사용자는 외국인 사용자를 거의 고려하지 않는 시스템이 다소 문제점으로 제기되었다. 이 연구는 이마트24 셀프스토어가 더 많은 문화적 배경을 가진 사용자를 만족시키는데 도움이 될 것으로 기대한다.

• 디자인학연구
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• 제19권3호
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• pp.19-30
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• 2006

This study was carried out to present design guidelines for developing electric bikes which could be used for more users regardless of gender and age. Through a survey with 336 male and female respondents in Seoul aged between 10s and 70 years or older, the convenience of bicycle use and image preference by gender and age were investigated. To evaluate convenience of bicycle use, the 7 principles of universal design made by Universal Design Center were customized to fit for accessing bicycles. The following are results of statistical analysis on 301 valid data: (1) of the 7 principles, conventional bicycles were identified to be the most inconvenient in principle 6(low physical effort), followed by in principle 5(tolerance for error) and 7(size and space for approach and use). Women appeared to feel more inconvenience than men in all evaluation criteria while using bicycles. The relation between the convenience of use and users' age was not identified. (2) Preferred images by bicycle users turned out to be those of 'simple' and 'light.' By gender, male preferred more 'technical' and 'dynamic' images than female. By age, users in their 10s-20s preferred more 'individual' image than 70 years or older.

• 한국조리학회지
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• 제23권7호
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• pp.97-111
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• 2017

As a single-person household emerges as an important consumer group, an Online-to-Offline or Offlineto-Online(O2O) service market is rapidly growing. This study attempted to verify the effects of convenience and webrooming characteristics of O2O service using the Technology Acceptance Model (TAM). The purpose of this study was to investigate the effects of the convenience and webrooming of food O2O service on users' perceived ease of use and perceived usefulness, and the effects of perceived ease of use and perceived usefulness on purchase intention of O2O services. Using a convenience sampling technique, an online survey was conducted through Google survey from April 16 to April 30, 2017 and was distributed to 447 O2O service users. A total of 320 questionnaires were included in the final analysis. The results showed that convenience had a significant effect on users' perceived ease of use as well as perceived usefulness. In addition, users' perceived ease of use had a significant impact on users' perceived usefulness. Finally, both perceived ease of use and perceived usefulness positively affected users' purchase intention of O2O services. These findings suggest that differentiated events, promotions, and store information should be provided when launching O2O service because webrooming is a more important factor in enhancing perceived usefulness than the perceived ease of use.

• International Journal of Advanced Culture Technology
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• 제9권4호
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• pp.376-384
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• 2021

This study wants to provide basic data on effective escape safety plans when residents of apartment complex use residential convenience facilities. The findings of the analysis are as follows. First, when this study applied the actual number of users (No=54) of those facilities, the existence of elevator for escape reduced the escape time by 189.0 seconds. Second, when the number of users was calculated on the standard of the number of people who can be accommodated for performance based design (No=316), the existence of the elevator for escape reduced the escape time by 173.5 seconds. Finally, when the number of users was calculated on the standard of installing fire-fighting facilities (No=122), the existence of the elevator for escape reduced the escape time by 159.2 seconds. As a result, it was found that elevator for escape reduces the escape time from fire. Accordingly, it is necessary to revise the construction law to make it obligatory for residential convenience facilities to be equipped with elevator for escape. Currently, apartment buildings lower than 30 stories have either elevator for passengers or elevator for escape. Thus, in future studies, it is necessary to compare escape times in fire depending on the kinds of elevator, and identify the usefulness of elevator for escape.

• 한국철도학회논문집
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• 제16권5호
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• pp.410-417
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• 2013

본 연구는 코레일 앱 이용자 200명을 대상으로 코레일 앱 서비스편의성이 코레일 앱 고객만족과 재이용 의도에 미치는 영향을 조사 분석하였다. 분석결과, 코레일 앱 서비스편의성과 코레일 앱 고객 만족간에 정(+)의 상관관계를 나타내어 코레일 앱 서비스편의성에 대하여 코레일 앱 고객들이 만족하는 것으로 나타났다. 또한 코레일 앱 고객 만족과 코레일 앱 재이용 의도와의 상관관계를 분석한 결과 정(+)의 관계를 나타내었다. 그러나 코레일 앱 서비스편의성이 코레일 앱 재이용의도와의 상관관계 분석 시 유의적인 상관관계를 나타내지 않았다. 결론적으로 코레일 앱 서비스 자체는 재이용 의도에 영향을 주지 못하고 고객만족을 통해 영향을 미친다. 이상의 결과들로 미루어 볼 때 코레일은 코레일 앱 지속성을 위해 코레일 앱 고객만족도에 중점을 두고 개선 발전시켜 운영하면 코레일 앱의 재이용 의도를 높여 코레일 앱을 최적화 할 수 있다는 사실을 연구를 통해 알 수 있었다.

• 한국환경복원기술학회지
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• 제11권2호
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• pp.114-122
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• 2008

Roof greening recently emerged to be an important issue of environmental policies in a city. To cover roofs of buildings with green vegetation gives chances not only to improve urban environmental function but also provides the opportunities of environmental learning and convenience for users in the building. This study aimed to give directions for roof greening plan to designers by acknowledging the relationships between ecological and utilizational effectiveness. 10 sites and 15 variables were adopted to measure the relationships. As a result, no positive correlations was found between them. One of the results in correlation analysis among variables, however, showed that the roof gardens have high utilizational effectiveness only when a green roof was made by focusing on ecological functions in addition to the concepts that will guarantee user's convenience such as accessibility, entrance and exit, facilities for convenience and learning. The results implies that a green roof has to be designed considering multi-functional effects. Correlation between species of vegetation and the number of daily users, average staying hours, and attending level for environment educational programs were not significant. These findings imply that when a green roof has to be take high utilizational effectiveness, both plentiful vegetation species and design concepts for users' convenience are should be considered.

• 실천공학교육논문지
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• 제6권2호
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• pp.111-117
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• 2014

이 연구에서는 취업정보센터 웹사이트 이용자의 컨텐츠 특성(사용자 편의성, 정보성, 고객서비스성)에 대한 지각이 이용자 반응(이용자 만족도, 이용자 애호도)에 미치는 영향을 분석하였다. 주요 연구결과로 첫째, 취업정보센터 웹사이트 컨텐츠 특성들은 이용자 만족도를 36.4% 설명하는 것으로 나타났고, 상대적 영향력은 정보성, 사용자편의성, 고객서비스성 순으로 나타났다. 둘째, 취업정보센터 웹사이트 컨텐츠 특성들은 이용자 애호도를 36.2% 설명하는 것으로 나타났고, 상대적 영향력은 정보성, 고객서비스성, 사용자편의성 순으로 나타났다. 이를 통해 취업정보센터 웹사이트 이용자들의 만족도와 애호도를 높이기 위해서는 웹사이트 컨텐츠에 대한 고려가 중요함을 알 수 있었다.

• 융합경영연구
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• 제8권1호
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• pp.1-11
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• 2020

Purpose - In the aviation industry, we will investigate the impact of users' acceptance of technology on their usage behavior and find out the factors that affect their acceptance of technology. We will expand the prior study to find out the impact of the self-service technology of Incheon Airport. Research design, data, and Methodology - The thesis was conducted on people using self-service technology at Incheon International Airport from July to August 2019. Part 307 of the valid questionnaires were used for this final analysis. The collected data were used to perform frequency, factor, reliability, and multiple regression analyses using the SPSS statistical package. Result - Individual aspects of external variables, service aspects, and systems aspects have been shown to affect usability and perceived ease of use. Usability and convenience have been shown to serve as intermediaries for users' technological acceptance. Conclusion - The perceived convenience and usefulness of Incheon International Airport has been shown to affect self-service users, while convenience and usefulness have been shown to serve as intermediaries for technology acceptance purposes. In other words, raising expectations for convenience, rapid processing, benefits and so on will have a positive impact on the intent to accept.

• 디지털콘텐츠학회 논문지
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• 제10권4호
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• pp.587-595
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• 2009

국내에서 인터넷 쇼핑몰은 성장을 계속하고 있으며 우리의 생활과 밀접한 관련을 가지고 있다. 그러나 사용자는 보다 편리하고 쉽게 상품을 구매할 수 있는 인터넷 쇼핑몰을 필요로 하고 있다. 본 연구에서는 사용편의성이 강화된 인터넷 쇼핑몰 내비게이션 디자인을 제안하기 위하여 국내의 인터넷 종합쇼핑몰을 분석하고 피험자에게 과제를 수행하게 한 후 심층 면접을 통하여 보다 편리하게 상품을 구매할 수 있는 디자인이 무엇인가를 파악하였다. 피험자들은 보다 많은 목록이 제시되어 다음 단계를 예측할 수 있는 롤오버 메뉴를 선호하였으며 좁은 메뉴에서는 많은 오류를 범하기 때문에 넓은 영역의 메뉴가 필요하다고 생각한다. 사용편의성이 강화된 인터넷 쇼핑몰 디자인이 개발되면 경쟁력이 강화될 수 있고, 상품의 구매도 촉진시킬 수 있으리라 생각된다.