Past Issues

In this study, we have developed the patch type HAMS (Heart Activity Monitoring System) which is non-restricted, non-awarable and non-invasive. The module using wireless telecommunication to receive the ECG (electrocardiogram) signal at the computer has mobility which it easily monitors the heart activity of subjects in no time for long term at any time and places. We developed the small patch type electrode which can be attached on the chest. Also the reliability and moving artifact of ECG signal measured by this electrode have been verified. Using HAMS, we measured the HRV (Heart Rate Variability) parameters, the questionnaire evaluation for anxiety and stress and the amount of stress hormone (cotisol) to evaluate the stress effect in HRV on the same subject. As a result of comparing the values under non stressed and stressed condition, there was significant difference on many parameters. And the parameter highly related with stress on Pearson`s Correlation Coefficient has been examined. These show that using HAMS is able to evaluate the function of autonomic nervous system. Therefore, we can predict heart problem in daily life by using HAMS. Also we expect that this module can be applied for more application as health monitoring system.

keyword : HAMS, Heart Activity Monitoring System, patch type bipolar ECG(Electrocardiogram) electrode, HRV, Heart Rate Variability, stress, cotisol, 패치형 바이폴라 심전도 전극, 심박변동, 스트레스, 코티졸

The present study have investigated the effect of the characteristics of stereoscopic images and viewing environment on visual fatigue. We manipulated the speed of stereo images with motion-in-depth and viewing distance, which were used as representative variables of the characteristics of stereo image and viewing environment, respectively. Visual fatigue was evaluated with use of a subjective questionnaire which is consisting of 5 different and independent factors: "Eye pain", "Visual stress," "Nauseousness", "Body stiffness", and "Blurriness". In general, when viewing time increased from 10 minutes to 20 and 40 minutes, observers felt severe visual fatigue. Among other factors, only the factor score of "Nauseousness" was significantly increased as the speed of object moving in depth became faster. When viewing distance was increased, the score of "Blurriness" was decreased. These results suggest that different kind of the visual fatigue might be induced depending on characteristics of the stereo images and viewing environment.

keyword : Emotion Design, Web Interface, User`s Emotion, Image Scale, 시각피로도, 입체영상의 특성, 시청환경, 3D 디스플레이

The purpose of this study was to explain the attitudes and acceptance toward the smart clothing adopted by the TAM(Technology Acceptance Model). A theoretical model on consumer acceptance of the commercialized smart clothing was constructed on the basis of previous studies and a review of literature and tested the path analysis. For the data analysis, statistical methods of confirmatory factor analysis, correlation, and covariance structural analysis using AMOS 5.0 package were employed. The results from a web-based survey of 557 online consumers indicate that the TAM by Davis(1989) adopted by perceived value according to market price was able to explain consumer acceptance of smart clothing substantially well. Using structural equation modeling, eight of the six hypotheses investigated in this study were supported. The results of the testing of the hypothesis were as fellows: First, perceived ease of use had a side effect on attitude through perceived usefulness. In addition, the attitude was found to affect consumer acceptance. Second, perceived usefulness was found to affect consumer attitude on perceived value, however, had not significant effect on consumer acceptance toward smart clothing. Third, perceived value was found to affect both consumer acceptance and attitude toward smart clothing. Finally, the attitude toward smart clothing had a direct effect on the consumer acceptance.

keyword : TAM, Technology Acceptance Model, smart clothing, perceived ease of use, perceived usefulness, perceived value, attitude, consumer acceptance, 혁신기술수용모델, 스마트 의류, 지각된 사용용이성, 지각된 유용성, 지각된 가치, 태도, 소비자 수용도

The importance of corporate identity design has been recently highlighted in the marketing. However, logotype among marks that represent the image of a company has been neglected relatively comparing to symbol mark and logo mark. A logotype should be something to represent the personalities and characteristics of a company in suggestive ways. For such reasons, the image expressions by shape are thought to be important. Consequently, the formative aspects of visual communication design should be examined with emphases. However, it is true that studies on the formative aspects regarding logotypes and logo marks, especially studies on the shapes of font types and the responses of consumers to them, are lacking. Accordingly, this study examined the visual shape of logotype preferred by consumers and the shape of logotype preferred by consumers according to the business type of companies. As a result of research, there were differences in the elements of logotype preferred according to the business type of companies; as for construction companies is preferred the body of the type of dotum font with bold stem, without serif, with oblique, straight-line and curve-line endings; as for banks is preferred the body of the type of dotum font without serif, with oblique ending and with one-side curve style of serif, the stem in a middle level; as for laboratories is preferred the body of the type of dotum font with oblique ending, with bold stem and straight-line serif. The elements that should be commonly applied to construction companies, banks and laboratories appear to be the oblique ending but the curve-line ending and shallow stem seemed to be avoided. On the other hand, the serif, ending and gulim appeared to be applied differently according to the business type.

keyword : Logotype, Logo mark, preference, elements of Logo shape, 로고타입, 로고마크, 선호도, 형태표현요소

This paper addresses analyzing affective color data for emotional interior design. Both the physical and psychological patterns for spatial colors were tested on thirty subjects, of which fifteen were male. All subjects participated in both the physiological and psychological experiments. The data on the reflecting subjects` affective moods is gathered through EEG physical experiments and SD (Semantic Differential Scale) method surveys. This research has suggested the relation of both experiments through affective color response. The methods of SPSS 10.0 and TeleScan Version 2 are used for analyzing response data to coordinate the colour palette with changeable moods. From the analysis of statistical data, all of the visual stimuli related emotional keywords and physiological responses. Finally, the initial goal of this research is to construct an affective colour database that is tested through human color perception by physical and psychological experiments.

keyword : Wall Color, Psychophysiological Responses, Affective Color, Interior Design, EEG, SD Scale, 벽면 색채, 감성생리반응, 감성색채, 실내디자인, 뇌파 측정, SD 스케일

This research extracted emotional words for measuring user`s emotions expressed while using a cellular phone and a web. And then the emotional words were compared to find out whether the difference in emotional words by the type of products. The results of this study suggest that the hardware-oriented products used for specific purpose such as cellular phone extracted a lot of emotional words related to `Satisfaction in Usability` and `Pleasure`. `Satisfaction in Usability` are conceived satisfying in usability or practicality of product. `Pleasure` are pleasant emotions expressed while using a product. However the emotional words related to `Aesthetics` and `Novelty` were omitted. `Aesthetics` are expressed by product`s appearance and by various visual information while using a product. `Novelty` are expressed by something that is novel and new that has never been experienced. On the other hand the software-oriented products used rather to find something better and new information than to perform specific tasks such as web extracted a lot of emotional words related to `Novelty`. Therefore, the results of this research have found evidence that it is desirable to make a set of subjective evaluation scale by the type of products. When making the subjective evaluation scale, it is important to use appropriate emotional words for the purpose of use and the characteristics of those products.

keyword : measuring user`s emotions, emotional words, cellular phone, web, 사용자 감성측정, 감성어휘, 휴대폰, 웹

There are life-style and many different cultural differences between countries. Among them, food is different from other areas. Especially, if Food Tools are used by food type, even though the design factor is same, the function is different. Therefore, research and development of a Food Tool design is necessary to use a Universal Food Tool between countries. The purpose of this research is to develop a behavior analysis process for food, finding similarities and differences by food type; and cultural differences between countries; and to propose a design Food Tool design that can be used between countries. This research on methods and content is for the development of the consumer behavior analysis process about food, grafting theoretical studies about behavior analysis and working behavior analysis on the spot, to develop a food action analysis process. Second, do comparative analysis process of food order and evaluation between countries; and think about the problems and symptoms, then propose methods to resolve the problems. Third, each process is divided by category, to find the features by each category of foods between countries. Results may be obtained through research and the comparative analysis of each country`s, foods, behavior and restaurant types. Specifically, researchers can use food tool design to obtain results and compare the same items between countries, compare university design education, and create new ideas through cooperation and complementary research.

keyword : Culture difference, Food instrument, Universal Design, 창의성, 유니버셜디자인, 문화의 차별성

Recently the studies on user-centered design and form-development have become issues of general interest as the key methods for successful design. For form analysis on user it is important needs that an integrated approach of existing methods and development of expert tool for designer. Moreover analysis methods and tools have to meet with the designers needs of visual result, clear direction, concrete formative factor, user`s emotional response and designer-friendly interface. This study proposed the main concepts of form analysis tool based on the user`s emotional response; integrated management, variables set-up, visual result of analysis, in-depth analysis with data mining and correlation, and reinforcement of user-centered analysis. Specific analysis tool consists of 5 functions: Project Management, Analysis Frame Set-up, Data Input-output, Basic Analysis, and In-depth Analysis. The feasibility of proposed tool was verified by a case study of mobile phone design in under-graduate class.

keyword : Form Analysis, User`s emotion, Data mining, Cellular phone, User Centered Design, 형태분석, 사용자 감성, 데이터마이닝, 휴대폰, 사용자중심디자인