• 대한인간공학회지
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• 제29권3호
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• pp.287-296
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• 2010

The purpose of this research is to analyze priority of the elderly user interface (UI) evaluation criteria based on user's lifestyle. Since the elderly population will occupy over 20% of the all Korean population in the near future, we need to know older users' needs and information because elderly users will be main customers in the super-aged society. This paper investigated the definition of elderly users and characteristics demographically, socio-economically, and physically/cognitively. A total of 238 questionnaires from older users were analyzed based on a segmentation table for the elderly developed by the previous study. According to factor analysis and cluster analysis, 6 types of lifestyle and 4 groups of the elderly users were classified, respectively. The priority of UI evaluation criteria for large electronic home appliances and mobile products was analyzed by analyses of variance (ANOVAs). The results indicated that the priority of (physical, emotional, and cognitive) UI criteria was significantly different among elderly users' lifestyles for both home appliances and mobile products. Consequently, the results of this study may help the company develop some competitive silver products and give higher satisfaction to the elderly users by suggesting different priority of UI evaluation criteria according to the target elderly group. The results may also contribute to revitalize national economy by significantly increasing senior market shares.

• 한국콘텐츠학회논문지
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• 제13권4호
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• pp.137-144
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• 2013

스마트기기의 보급이 증가하고 그 종류도 다양해짐에 따라 기존의 여러 가지 기능들이 이 스마트기기에 집중되고 있다. 종이책 시장이 일부 전자책 시장으로 편입되어 가고 있는 것도 이러한 현상 중의 하나이다. 전자책의 수요가 증가 하면서 시장에서 전자책의 형태도 조금씩 발전하는 것을 관찰할 수 있다. 본 논문에서는 스마트기기에 설치되는 어플리케이션 형태인 전자책 뷰어의 인터페이스에 대한 사용성 평가를 실시하였다. 또한, 전자책의 사용성 평가를 위한 항목을 정의하여 사용 패턴을 객관적으로 관찰하고 설문 기법을 사용하였다. 따라서 본 연구는 전자책 인터페이스 사용성의 평가를 분석하여 전자책의 제작 방향과 개선방향을 제시하였다.

• 대한기계학회논문집A
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• 제20권6호
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• pp.1872-1881
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• 1996

LBB(Leak-Before-Break) analysis is performed for the highest stress location of each different type of mateerials in the nuclear piping line. In most cases, the highest stress occurs in the pipe and nozzle interface location. i.e. terminal end. The current finite element analysis approach utilizes the symmetry condition both for locations near the nozzle and for locationa away from the nozzle to minimize the size of the finite element model and to make analysis simple when calculating the J-integral values at the crack tip. In other words, the nozzle is not included in the finite element model. However, in reality, the symmetric condition is not applicable for the pipe-nozzle interface location. Because the pipe-nozzle interface location is asymmetric due to different stiffenss of the pipe and nozzle(both material and dimensions). The simplified analysis approach for pipe-nozzle interface locaiton is too conservative for a smaller diameter piping. In tlhis paper, various analyses are performed for the range of materials and crack sizes to evaluate the nozzle effect for a LBB anlaysis. This paper presents methodology for developing the piping evaluaiton diagram at the pipe-nozzle interface location.

• 한국비블리아학회지
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• 제22권3호
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• pp.173-188
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• 2011

본 연구는 독서장애인을 위한 DAISY 서비스 인터페이스 구성에 대한 경험적인 권장사항을 밝히기 위한 연구로서 실제 서비스 사례를 기반으로 연구가 진행되었다. 서비스 사례는 LG 상남도서관에서 제공 중인 책읽어주는 도서관 서비스(http://voice.lg.or.kr)를 대상으로 하였다. 연구방법은 웹 서비스를 통해 제공되는 DAISY 플레이어(S/W)의 서비스 인터페이스를 전문가 집단이 평가하고, 평가 결과를 반영하여 신규 DAISY 플레이어를 개발하는 방식으로 진행되었다. 전문가 집단의 현재 인터페이스 평가 결과 신규 인터페이스에 반영해야 할 주요 개선사항이 도출되었으며, 주요 개선사항으로는 스크린리더의 화면 낭독 흐름 고려, 소프트웨어 동작 지연시 오류 인식 방지, 웹 기반 소프트웨어의 개발, 다양한 부가기능의 제공, 단축키 충돌 방지 등이 제시되었다.

• 한국안전학회지
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• 제33권6호
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• pp.58-65
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• 2018

The life span of the porcelain insulator was made to be 30 years, but currently many of the 154kV NGK porcelain insulators using in Korea are found to have passed the production life. Accidents caused by aged mechanical breakdown can lead to disruption of power supply in some areas, large economic losses, and casualties. Therefore, ultrasonic method, which is one of the non - destructive test methods, is applied as a method for evaluating the integrity of porcelain insulators. In this study, the experiment on the interface of cap was conducted and the difference between the energy difference and the attenuation coefficient of the reflected wave was derived according to the interface state of the steel - cement. The results of this study are expected to be used as the basic data of the ultrasonic testing to evaluate the interface condition of the porcelain insulator cap.

• 산업기술연구
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• 제15권
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• pp.83-91
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• 1995

This paper presents the design of a smart A/D conversion interface used for measuring the load of a truck. Since the load-cell sensor to be used is very sensitive for weight variation, the interface board must have the low-drift and the A/D conversion for accuracy. A new integrator and comparator has been developed to reduce the offset voltage and the drift current of operational amplifiers and has been adapted into the interface board. Also, a software algorithm has been developed to obtain the stable and accrurate A/D conversion. This software includes a RS-485 communication program to control the interface, which gives a capability of backing-up the calibration data and transferring control data. The test and evaluation of the designed interface has been shown as having the better performance compared to the other types of existing weighing systems and sensor instruments.

• 대한인간공학회지
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• 제26권3호
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• pp.53-57
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• 2007

The User Interface (UI) in the company is more important than ever. But the application of UI for the industry use is restricted by various constraints such as delivery, technical limitation, etc. User Interface designers in the company have thought how to set up the UI organization, how to define identity and goal, how to communicate with other teams, what is the best UI process, and many other issues. In this paper, the author discuss the practical issues arisen when User Interface organization is formed and managed based on the mobile phone manufacture's perspective. The pros and cons of location of UI organization, advanced UI organization, UI member formation, UI role, UI output, UI evaluation, and understanding of UI in the society and company are discussed. This discussion will help UI designers in industry to set up and manage UI organization.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1997년도 추계학술대회논문집
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• pp.372-375
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• 1997

Classivication scheme of usability element for the evaluation of consumer electronic product was developed in this study. Using hierachical structuring and clustering methods, usability element of consumer products interface is developed both for the performance perspective and for the image/appeal perspective of a product. Perfoormance element included variables such as simplicity, directness, learn- ability, flexibility, user support and effectiveness. Image/Appeal element included variables such as sensibility, descriptive impression, evaluation of appeal, and attitude towards the product. The classifi- cation scheme developed in this study is found to be comprehensive and robust relative to other existing paradigms. They can be effectively used and applied for the usability evaluation of consumer electronic products.

• 산업공학
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• 제12권2호
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• pp.294-304
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• 1999

This paper describes the theoretical background and detailed structure of Navi-HEGS (Navigation system Human factors Evaluation and Guideline System) which has been developed for the human factors and HMI(Human-Machine Interface) researches for a CNS (Car Navigation System) and a digital map. Navi-HEGS is and integrated system that consists of a digital map UIMS(User Interface Management System), a CNS simulator, various evaluation tools, and a design guideline system. If Navi-HEGS is properly applied and utilized, it is possible to extract the substantial users requirements and preferences of a CNS and a digital map and then, these requirements can be simulated and evaluated with various human factors evaluation techniques. Applications of Navi-HEGS can improve the CNS usability, drivers safety and performance that directly affect the success of ITS(Intelligent Transport System). Also, results can be used as the basic data to establish the standards and design guidelines for the driver-centered CNS design.

• 디자인학연구
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• 제12권3호
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• pp.105-114
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• 1999

최근 전자기술의 발달과 함게 제품들이 인간의 지적 면을 지원하는 스마트한 제품으로 변하면서 OSD는 이런 제품의 입출력을 담당하는 사용자 인터페이스의 중요한 부분으로서 본체의 외형 못지않게 제품개발의 핵심적인 요소가 되고 있다. 특히 영상기기와 정보기기의 경우 그 중요성은 더 커진다. 이런 중요성에도 불구하고 단순히 하드웨어 본체에 탑재하는 부속물로서 취급되어 많은 검증과 평가를 통해 개발되는 하드웨어 본체에 비하여 단순하고 개별적인 사용성평가만을 통해 개발되고 있다. 즉 얼마나 빨리 주어진 그능을 수행하는지 사용하는데 애로는 없는지 등 개별적인 속성에 대한 수행도 위주의 사용성평가에 그치고 있다. 이에 본 연구에서는 수행도 위주의 사용성평가에서 탈피하여 사용자 인터페이스에 대한 주관적 선호도를 바탕으로 사용자의 입장에서 중요한 속성은 무엇이며 또 그러한 속성의 각 수준에 사용자가 부여하는 가치는 어느정도인가를 파악하기 위하여 실제 제품을 사용하는 것과 동일한 환경하에서 사용하게한 후 선호도를 측정하였으며 컨조인트분석에 의하여 각 속성의 중요도 및 각 수준의 만족도를 분석하였다. 리허한 사용성평가 및 분석은 사용자 인터페이스 디자인 프로세스의 최종단계로서 진행되는 것이 아닌 초기단계부터 그 방법과 내용, 또 어떻게 디자인에 피드백할 것인가 등을 계획하여 반복적으로 실시되야 한다.시되야 한다.