• Journal of Digital Convergence
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• v.17 no.5
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• pp.379-384
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• 2019

The purpose of this study is to investigate the problems of the rapidly increasing voice interface and to find out what results will be obtained when the new gesture interaction is applied to the product, and to suggest the improvement method for a better user experience. Through the literature review, I have conducted a theoretical review on the changes in the product interface used in the product and the difference between them, and then conducted in-depth interviews on the 20-30 users who used voice recognition as a product trigger. As a result, it was concluded that the decline in the reliability of accuracy leads to a decrease in the preference of voice recognition interactions and an needs of appropriate interface for the functional aspect of non-relavancy in physical distance as a product trigger. This study is meaningful in that it has found a problem with the study of the product trigger interface and suggested improvement measures, and hope to be helpful in follow-up study.

• Design Convergence Study
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• v.15 no.1
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• pp.37-48
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• 2016

Nowadays, CAD has became an essential tool for designers due to its easy edition and manipulation as well as the capability of communication between designers. Differences between design tool interfaces can cause gaps when visualize designer's ideas. This study is about the differences between various levels of metaphor interface language which is based on the theory of the Hutchins that high-level language interface can reduce the steps of process to visualize the idea of the designers than low-level language interface. This research is based on the assumption that high-level language interface will less interrupt the flow of the design thinking and make more various visual outcomes than the low-level language interface. We verified the hypothesis by analyzing differences of design thinking flow between user groups who used two different animation software. Hopefully, the verification of the hypothesis in this study can be able to guide the use pattern of the CAD tools.

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.304-309
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• 2008

The development in information technology allowed most of the information around us into digital information, in other words, a database. The innovation increased the accessibility and helped this society change into an informational age. However, there is a shortcoming of this open source as the users have difficulty in assorting the information that s/he needs and realizing if the information provided is important. Therefore, the need for search engine has risen in such a way to increase the accessibility and facilitation of information provided to the users through searching the necessary information in the database by an easy and accurate way. This study aims to increase the utilization of search engine through relationship analysis between purpose of user and interface design factors of search engine. Also, it intends to propose design guidelines for search engine interface design in order to increase user satisfaction and usability. This study categorized and correlated the relationships of the purpose in using the search engine and types of search engine interfaces. This study explicates the critical properties in designing each search engine interface according to the purpose of the users in using them. Also, this study proposes recommendations for appropriate design guidelines for search engine interface and effective advertisement use through properties of interface and their importance. The search engine interface suggested from the result provides interface that allows efficient search for desired information and embrace a variety in users, eventually increasing the usability in search engine.

• Science of Emotion and Sensibility
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• v.14 no.1
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• pp.83-92
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• 2011

Because of the development of digital technologies and information-oriented products, the importance of user interface design and usability are increasing in recent year. So we need a systematic and rational way to measure and manage how effective the improvement of user interface is. The purpose of this study is to develop measurable ‘Usability Improvement Index' which signify how much usability has improved in user interface design. First, I made the framework of measuring and evaluating usability through analysis of existing usability metrics and previous studies. Then, I suggested the process of calculating 'Usability Improvement Index' based on categorizing characteristics of measurable usability and definition of usability metrics. The process is as in the following : measuring the present level of usability, analysis of problems, making alternative user interface design, measuring the improved level of usability, calculating Usability Improvement Index. For verification, the case study on application of Usability Improvement Index to usability improvement of application software of digital camcorder presented. This study is expected to assist 'goal oriented user interface design' and to manage usability systematically.

• The Journal of Society for e-Business Studies
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• v.13 no.4
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• pp.111-124
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• 2008

The development in information technology allowed most of the information around us into digital information, in other words, a database. The innovation increased the accessibility and helped this society change into an informational age. However, there is a shortcoming of this open source as the users have difficulty in assorting the information that s/he needs and realizing if the information provided is important. Therefore, the need for search engine has risen in such a way to increase the accessibility and facilitation of information provided to the users through searching the necessary information in the database by an easy and accurate way. This aim of study should propose the important design attribute to increase the utilization of search engine through relationship analysis between purpose of user and interface design factors of search engine. In other words, these attributes, as design guideline, could apply to the search engine interface design considering of user's search goal. For this, the purpose in using the search engine and types of search engine interfaces were categorized and correlated the relationships. The search engine interface suggested from the result provides interface that allows efficient search for desired information and embrace a variety in users, eventually increasing the usability in search engine.

• Archives of design research
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• v.11 no.1
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• pp.73-80
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• 1998

Recently, the importance of cultural design has been increasing due to the globalization. However the cultural design is mainly focusing on the shape or color stereotype of different cultures, ignoring another important aspects of cultural design: the way of peoples' interacting with product. The study aims to develop usability test program for cultural user-interface design that operates in the world wide web. The study begins with discussing the nature of culture through defining culture and reviewing the depth and variables of culture. Based on the findings the structure of the usability testing program on the WWW design methods is identified. The usability testing program on the WWW comprises of five different modules: module for identifying users' demographic characteristics, module for cultural variables, module for population stereotype, module for usability testing, and module for data storage and analysis. Finally findings are summarized and further research prospects are outlined.

• Design Convergence Study
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• v.16 no.5
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• pp.177-190
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• 2017

This research aims to suggest a multimodal non-touch gesture interface design to improve the usability of 3D sculpting task. The task and procedure of design sculpting of users were analyzed across multiple circumstances from the physical sculpting to computer software. The optimal body posture, design process, work environment, gesture-task relationship, the combination of natural hand gesture and arm movement of designers were defined. The preliminary non-touch 3D S/W were also observed and natural gesture interaction, visual metaphor of UI and affordance for behavior guide were also designed. The prototype of gesture based 3D sculpting system were developed for validation of intuitiveness and learnability in comparison to the current S/W. The suggested gestures were proved with higher performance as a result in terms of understandability, memorability and error rate. Result of the research showed that the gesture interface design for productivity system should reflect the natural experience of users in previous work domain and provide appropriate visual - behavioral metaphor.

• 한국HCI학회:학술대회논문집
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• 2006.02b
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• pp.83-88
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• 2006

우리가 사용하는 이미지뷰어프로그램은 정보전달에만 치중되어 있고 감성적인 부분이 차지하는 바가 적다. 또한 사람들에게 디지털카메라로 찍은 사진들을 보는 것은 많은 과정을 필요로 하고 큰 노력을 요한다. 게다가 다른 사용자들과 즉각적으로 공유하기도 힘들다. 이 같은 문제점들을 해결하는 새로운 이미지뷰어인터페이스를 제안해본다. 기존의 이미지뷰어프로그램들을 분석하고 그에 대한 결과와 문제점을 찾은 후 새로운 디자인 키워드를 제시하였다. 단순함(Simplicity), 즉각성(Instancy), 공유(Sharing), 감성(Sensitivity) 이렇게 네 가지 키워드이다. 사진(Picture)은 이미 지나간 과거이다. 이러한 사진의 시간개념을 Timeline 에 적용하고, 이를 원(Circle)이라는 모양으로 나타내어 사진을 볼 수 있게 하였다. 원이라는 새로운 형태의 인터페이스는 사진을 보다 쉽고 즉각적으로 공유할 수 있다. 데모버젼으로서 매크로미디어 플래시 액션스크립트로 프로그램을 하고 파워메이트(Powermate)를 장치(Device)로 사용하여 시연하였다. 이 인터페이스는 사람들이 쉽게 접할 수 있는 장소면 아무 곳이나 설치가 가능하다. 카페나 회의장소에서 가장 적합하게 어울릴 것이다. 사용자는 다른 이들과 함께 즉각적으로 간단한 방법으로 함께 감성을 나눌 수 있다. 새로운 인터페이스디자인이 사람들에게 쉽게 인지되어, 보다 편리하게 이미지를 확인할 수 있는 가능성을 제시한다.

• Proceedings of the Korea Society of Design Studies Conference
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• 2002.05b
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• pp.168-169
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• 2002

• Proceedings of the Korea Multimedia Society Conference
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• 2002.05c
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• pp.518-523
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• 2002

우리는 생활 속에서의 원활한 의사소통을 위해 수 많은 관계와의 좋은 인터페이스를 여러 각도로 요구하며 살고 있다. 본 논문에서는 효율적인 사용자 중심의 인터페이스를 설계하기 위하여 문맥조사를 인터페이스 디자인 초기단계에 적용하는 프로토타입 제작기법을 고안하였다. 그 적용사례로 ATM(현금지급기)를 시뮬레이션 하여 분석한 결과, 기존의 시스템보다 개별 사용자의 현금지급기 서비스 처리 수행속도가 평균 40초 이상 단축되었다. 사용자 이용 시간의 단축은 비용절감과 만족도의 향상을 의미한다.