• Journal of the Ergonomics Society of Korea
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• v.22 no.3
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• pp.45-56
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• 2003

This study was conducted to develop user interface design guidelines for those who design education software products (web sites or CD-ROM titles). To establish this guideline scheme, international standards, commercial design guidelines, and research papers were surveyed. Especially, ISO 9241 was referred as a basic model of a guideline scheme. First, the research group developed draft guidelines. After that, education software developers, designers, and a user group reviewed the draft and the draft was revised with their commentations. Five components were selected as a primary class of guideline scheme: general principle, dialogue design, user guidance, visual interface, and information presentation. Each component was divided several components as a secondary class. Finally, 45 items were selected as user interface design guidelines for the education software design.

• Proceedings of the ESK Conference
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• 1997.04a
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• pp.31-36
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• 1997

최근 사용자 인터페이스 및 감성공학에 대한 관심이 높아지면서 기업의 제품개발 방향에도 영향을 미치고 있다. 그러나 제품개발에 직접 응용할 수 있는 구체적인 지식은 체계화 되어가는 단계라 할 수 있다. 따라 서 실제의 제품개발을 위하여 어떤 방법 및 프로세스로 개발하여야 할 것인가에 대한 기초적인 연구를 수행하였다. 그 결과 구조화수법을 위해서는 객체지향의 수법이 유용함과, 시뮬레이터 제작을 위해서는 Altia, Rapid, ToolBook 등의 기법이 유용함을 알게되었다. 그리고 시뮬레이터에서 얻어진 데이터를 분석하기 위해서는 사용되는 일반통계 기법과 프로토콜 분석등은 많은 제품을 개발하기위한 일정에는 분석하기에 많은 시간을 필요로함으로 실효성은 고려 해 볼 여지가 있었다. 향후, 관련연구가 활성화 됨에따라 많은 방법들이 제공될 것으로 기대되며 실제품개발에의 응용에는 기업의 활발한 연구가 기대된다.

• Journal of the Ergonomics Society of Korea
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• v.18 no.3
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• pp.105-125
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• 1999

As speech is the human being's most natural communication medium, using it gives many advantages. Currently, most user interfaces of a computer are using a mouse/keyboard type but the interface using speech recognition is expected to replace them or at least be used as a tool for supporting it. Despite the advantages, the speech recognition interface is not that popular because of technical difficulties such as recognition accuracy and slow response time to name a few. Nevertheless, it is important to optimize the human-computer system performance by improving the usability. This paper presents a set of guidelines for designing speech recognition interfaces and provides a method for evaluating the usability. A total of 113 guidelines are suggested to improve the usability of speech-recognition interfaces. The evaluation method consists of four major procedures: user interface evaluation; function evaluation; vocabulary estimation; and recognition speed/accuracy evaluation. Each procedure is described along with proper techniques for efficient evaluation.

• Journal of the Ergonomics Society of Korea
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• v.18 no.3
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• pp.55-72
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• 1999

Evaluation of user interfaces has to be performed in an intuitive and subjective manner by experts especially when the problem comes to the complexity and consistency of sophisticated interface procedures. The manual analysis and evaluation of logical interfaces also tends to be slow and laborious. To make the evaluation more formal and objective, the criteria and the procedure with which the evaluation can proceed must be explicitly prescribed. Furthermore, to make the formal procedure as practical as subjective expert evaluation, the criteria must reflect the user knowledge of the target tasks since the task knowledge plays the role of a basis for users to understand the interface organizations and procedures. This paper describes ESTIM, a support system for task-based evaluation of user interface, that includes the interface evaluation criteria and implies an evaluation procedure. The support system can be used either in an interactive manner by the analyst during the evaluation or in an automatic evaluation mode. It was verified that the result of automatic evaluation by ESTIM matched the results of expert evaluation fairly well.

• Journal of the Ergonomics Society of Korea
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• v.13 no.2
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• pp.1-12
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• 1994

Many different types of computer user interfaces are used to perform office tasks. Although some guidelines are proposed for selecting user interfaces appropriate to perform differnet tasks, they have not been supported by empirical studies. This study examined five user interface styles and their combinations which were used to perform representative office tasks. A variety of analysis techniques such as brainstorming, analytic hierarchy process, prototyping, and expert opinions were employed to evaluate the usability of the interfaces. Also, a human factors experiment was conducted to validate empirically the analysis results. The analysis procedures and results are described along with guidelines for selecting user interfaces in terms of subjective preferences and performance measures.

• Journal of the Ergonomics Society of Korea
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• v.14 no.1
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• pp.105-113
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• 1995

The objective of the study is to investigate the influence of aesthetic attributes on user interface design. Theories of aesthetics are first studied from which aesthetic attributes are defined as information sources. Representation of a product is viewed as a combination of aesthetic attributes, based on a hypothesis that each attribute has a certain influence on the performance in terms of user interface. An experiment was conducted to support the hypothesis. Various combinations of aesthetic attributes of a microwave oven were generated from the orthogonal array of a conjoint analysis. Subjects perfomed on a computer two types of tasks, each of which simulated a combination of attributes. Reaction time was evaluated as a performance measure for the conjoint analysis to find out how much influence each attribute has on the performance. A computer program, UISA(User interface Simulation system of Aesthetic attributes0, was developed and used for simulation. Findings on the influences of aesthetic attributes were summarized.

• Journal of the Ergonomics Society of Korea
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• v.23 no.4
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• pp.57-66
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• 2004

EEG(Electroencephalogram) provides a possibility of communicating between a human and a computer, called BCI(brain computer interface). EEG evoked by a movement has been often used as a control command of a computer. This study is to predict human movements by EEG parameters showed significant consistency. Three undergraduate students were asked to move both hands and foots thirty times respectively. Each movement consisted of single and three consecutive movements. Their EEG signals were analyzed to obtained ERD(Event Related Desynchronization) and ERS(Event Related Synchronization). The results showed that ERD and ERS could be used as a significant classifier identifying either single movement or repetitive movement of human limbs. The number of repetition of movement could be used to various control commands of a computer.

• Journal of the Ergonomics Society of Korea
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• v.26 no.4
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• pp.9-16
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• 2007

Input devices of wearable computer are difficult to use, so a lot of alternative pointing devices have been considered in recent years. In order to resolve this problem, this paper proposed a dynamic gain control method which is able to improve the performance of wearable pointing device and showed an experimental result comparing this method with conventional method. Also the effects of methods were compared in terms of device (wearable and desktop). The result of calculating throughputs(index of performance) by Fitts' law showed that the pointing performance in dynamic gain condition was improved 1.4 times more than normal gain.

• Annual Conference of KIPS
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• 2016.10a
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• pp.766-767
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• 2016

컴퓨터가 인간의 생활과 밀접해지면서 인간은 사람과 컴퓨터간의 더 효율적인 인터페이스를 갈구하게 되었다. 기존의 VR 컨트롤러들은 버튼으로 이루어져 있어 조작의 감도가 좋지 않다. 이미 VR 시장에서는 VR을 더욱 현실감 있게 즐기기 위한 컨트롤러의 개발에 열을 올리고 있다. 본 연구는 더욱 현실감 있는 VR 컨트롤러를 위해 근전도 센서, IMU 센서 그리고 블루투스 모듈을 이용하는 방법을 제시한다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.05a
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• pp.415-416
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• 2006

In this paper, we propose the ergonomics design method in shape design applicable which considers the user interface for railroad. This study focuses on ergonomics design and sensibility engineering design, user interface, which should be considered from the conceptual design stage of the rolling. Human's sensitivity and User Interface of railroad investigated ergonomics studies of several type. The sensibility engineering design made approach of user center design in railroad design. New design railroad to satisfaction passenger's various desire, to safety and convenient through high technology, to sufficient passenger's aesthetic sense. Therefore, we have application to properly of ergonomics design element in railroad design. we expert visual design and user interface help greatly in excellent railroad design.