• 대한산업공학회지
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• 제34권1호
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• pp.66-78
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• 2008

In the past, Manufacturers used to determine the quality of products, but the trend of today's market becomesmore into customer-driven. As a result, demands from customers are becoming more diverse and complicated,and most companies are obligated to meet their needs. As one of the effort to achieve their satisfaction,companies are now emphasizing activities to find out what customers specifically want and extract voice ofcustomer(VOC). This study attempts to develop an ergonomic product development process as a method tomaximally reflect the VOC. In order to meet this goal, ergonomic design guidelines, which are possible to beclassified according that user's human characteristics, will be recommended. Even now, there are numerousdesign guidelines already existing in the ergonomics literature. However, it is not realistically feasible to reviewall of those guidelines, and some of them are even conflicting with each other. Therefore, in this paper, theproduct development process, which prioritizes the human characteristics that reflect customer needs and appliesthe design guidelines that meet the most important ones, will be suggested. Finally, the research was described toshow the validity of the product development process through an example of a mobile phone development case.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1995년도 추계학술대회논문집
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• pp.240-248
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• 1995

In Korea, it is not satisfactory in the product design since Kansei engineering or Ergnomics is not very active and well considered. When designing a mini-component, the user's emotion was not considered well. It is typical to have a rectangular shape, dark- colored outside in a mini-component design. Therefore, the users have to select with available choice from the manufacture's traditional designs. In this study, a new smin- component was designed to be suitable for a new generation's (10 to mid-20) sensation. First of all, an ergonomic problems were investigated. And then, the survey was per- formed to consider the emotion of the new generation. After that, the new design was made to reflect the new generation's trend and preference. In addition, the high-touch (human-centered design) and human touch (the product to give a sensible satisfaction for human) concepts were added.

• 산업공학
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• 제16권spc호
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• pp.144-148
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• 2003

A group of digital human models with various sizes which properly represents a population under consideration is needed in the design process of an ergonomic product in virtual environment. The present study proposes a two-step method which produces a representative group of human models in terms of stature and weight. The proposed method first generates a designated number of pairs of stature and weight within an accommodation range from the bivariate normal distribution of stature and weight of the target population. Then, from each pair of stature and weight, the method determines the sizes of body segments by using 'hierarchical' regression models and corresponding prediction distributions of individual values. The suggested method was applied to the 1988 US Army anthropometric survey data and implemented to a web-based system which generates a representative group of human models for the following parameters: nationality, gender, accommodation percentage, and number of human models.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1998년도 춘계학술대회논문집
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• pp.19.1-24
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• 1998

Designers often hesitate to decide the shape, size, and layout of a product. Though ergonomic principles and data are absolutely needed in this process, they don't have enough guidelines to refer. For the refrigerator designers, they also are not convinced of their decision: the vertical position of the freezing and refrigerating rooms, the height of shelves, the shape of door-handle, and etc. To support the refrigerator design, we applied several ergonomic methods to the evaluation of a refrigerator. EMG measurement was used to evaluate the load of user's lumbar muscle. Based upon the experimental EMG data, we developed a model to predict the relative load according to the height of refrigerator shelves. Two different layouts of a refrigerator, R/F and F/R style, were compared with the model. A three-dimenaional motion analysis method was used to evaluate the user's motion of using a refrigerator. Ten door-handles with the different shapes and positions were evaluated by tracking the rotations of the user's arm. Video protocol analysis was used to evaluate the user interface of a control panel in a refrigerator. Finally, we made several ergonomic design guidelines based on the facts found in this research and the anthropometric data of the Korean adults. The results of this study can be applied to the ergonomic design of a refrigerator.

• 대한인간공학회지
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• 제36권2호
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• pp.69-86
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• 2017

Objective: The present study is intended to develop an improved bus seat armrest design by evaluating various bus armrest designs from ergonomic aspects. Background: An ergonomic armrest design which considers the sitting postures and body shapes of passengers can improve the convenience and comfort of a bus seat. Method: Subjective satisfaction of each of five design dimensions (length, width, height from seatpan, shape, and angle) was evaluated for seven bus seat armrest designs in various sizes and shapes by 58 participants (28 males and 33 females) using a 7-point scale (1: very dissatisfied, 4: neutral, and 7: very satisfied). Improved bus seat armrest designs adjustable in length and rotatable to the left or right (sliding and rotating armrest, SRA) with a concave, flat, or convex shape of the upper part were developed by considering the preferred design features and the body size and shape in sitting posture and needs of passengers and then compared with a conventional armrest. Results: A bus seat armrest with a wide width (40~50mm), a long length (360mm), a lower height (213mm), and a curved shape was found significantly preferred in terms of comfort. The proposed armrest designs (SRA-convex, SRA-flat, and SRA-concave) improved satisfaction by 46~62% for length suitability, 184~216% for width suitability, 205~214% for angle suitability, 138~181% for contact area suitability, and 49~64% for height suitability, 138~174% for comfort, and 93~111% for overall satisfaction. Conclusion: The preferred design features and passengers' needs of bus seat armrest were identified and the SRA designs were recommended for better usability. Application: The ergonomic design process of bus seat armrest employed in the present study can be applied to designing armrests in various vehicles for better convenience and comfort.

• 디자인학연구
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• 제13권3호
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• pp.253-260
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• 2000

필기구는 그 구조와 사용특성상 여타 제품과는 다른 특징을 많이 띠는 제품이다. 즉, 다양한 종류의 필기구라 할지라도 대체로 공통적인 구조나 부품으로 구성된 경우가 많다. 또한 제품 전체가 항상 손에 잡혀져 필기가 이루어진다는 점에서 인체공학적인 디자인이 필수적인 제품이다. 소비자들이 필기구를 고르는 데 있어 가장 중요하게 여기는 요소가 필기감이라는 것을 감안하면, 스타일링 위주의 디자인을 행하기 보다 필기감 향상에 영향을 주는 요소 중에서도 디자인이 기여할 수 있는 인간공학적인 개선이 매우 유효한 개선 방법이 된다고 할 수 있다. 현재까지도 인간과 일의 이해를 바탕으로한 인간공학 (Ergonomics)적 접근이나 필기구를 쥐었을 때의 편안함 등에 대한 문제해결은 부족한 면이 적지 않으며, 인간과 일의 관계에 의해 인간사회는 유지되며 독특한 문화를 형성한다는 근본적인 인식을 바탕으로 필기구 디자인은 문화적인 차원에서의 인간공학적 접근을 시도해야 한다. 이에 본 연구에서는 다양한 필기구의 인간공학적 디자인 크라이테리어를 재정립하고, 실제 실험을 통하여 필기구가 가져야하는 기본적인 제원에 대하여 정리하여 향후 필기구 개발에 기초자료로 쓰기 위한 시도를 하였다. 이러한 연구는 필기구 개발의 통합적 전개, 즉 동시공학적 개발을 위한 기초자료로서 나 각 부품별 모듈 시스템을 통한 모델 다각화 전략의 초석이 되는 데이터베이스 개발에도 효과적으로 응용될 수 있다.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회/대한산업공학회 2005년도 춘계공동학술대회 발표논문
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• pp.533-536
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• 2005

This research aims to develop a procedure that help transform user's feelings or images of a product into the product's design elements. Current approach of product design has focused on providing proper functions of the product. However, as the users' needs get more diversified, it is necessary to accommodate the users' sensitive requirements in product design. The concept called Human Sensibility Ergonomics(HSE). In implementing the HSE, first, it has been surveyed the users' requirements through questionnaires or interviews. Next, has been analyzed the collected data using various statistical analysis technique, resulting in identification of the users' feelings or images of the products.

• International Journal of Advanced Culture Technology
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• 제11권4호
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• pp.302-309
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• 2023

Wearable devices, attached to the human body, track and enhance users' activities, health, and communication. Therefore, considering ergonomic factors in product design is crucial. However, previous research has somewhat overlooked the importance of integrating ergonomic design elements into a broad spectrum of design factors. This study aims to examine the impact of physical attributes inherent in smart wristbands and smartwatches on the perceived functional value, specifically, perceived usefulness, ease of use, and fit. A survey was conducted among 289 US adults who had experience using smart wristbands or smartwatches. The collected data were analyzed using descriptive statistics, factor analysis, Cronbach's alpha, t-test, MANOVA, and regression analysis in SPSS version 29. The results showed that the shape of the front display significantly influenced perceived ease of use, and the product's weight had a substantial impact on both perceived ease of use and fit. Furthermore, distinct technical features on the front display had varied effects on perceived usefulness, ease of use, and fit. Notably, the presence of activity tracking, alarm, and calendar functionalities led to distinct differences in ease of use and fit. Features such as distance tracking, phone call, social media notifications, text messaging, and time display functions showed significant influences on the perception of fit. These findings provide insights into the physical values of smart wristbands and smartwatches as perceived by users.

• 대한인간공학회지
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• 제27권4호
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• pp.103-108
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• 2008

The aim of this paper is to improve the design of a pair of axilla crutches through quality function deployment(QFD) and discomfort experiments. User needs for the crutches, as well as the engineering characteristics which have influence on the ergonomic quality of crutches were determined from the interview with many users. This information was entered in the house of quality, and the results show that the axillary pad and grip are the most important quality factors. And the results from the discomfort experiments confirmed the QFD output. A prototype reflecting the QFD results was proposed. The present study demonstrated how QFD approach can be a methodological tool geared to greater ergonomics consideration in product design.

• 디자인학연구
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• 제19권3호
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• pp.195-206
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• 2006

Design for improved usability is to understand products from the user's point of view so eventually to enhance the pleasantness users by reflecting it into the design. The philosophy of user-oriented design is an essence of human-centered product planning, and its application is more important for railway vehicle design, which is closely connected with everyday life. This study focused to define basic elements of train interior design concept, which considers convenience and comfort for passengers, by extracting and interpreting ergonomic requirements, as usability factors, of train toilet design. The study on user-oriented design of trains consists of the practice of sensibility engineering for the management of customers' emotions and its harmonious use on design, and aims on the embodiment of new ergonomic design. In the center, it has analyzed the criteria and characteristics of the user-oriented design and has concluded the design direction and components to a concrete idea and proposed prototypes, which may become a good example for train interior design later on. In addition, it proposes a direction, which may become a guideline of ergonomic design, to secure competition capacity. Moreover this study is concentrated on the physical environment and human behavior of train toilet users, on the analysis of factors necessary for adequate toilet design, and on the understanding of interface between its users. What is more, it proposes a module of development process and methods of approaching the interface. The study presents a design standard, under which the concrete data of the characteristics and practicable range and the convergent demands accelerate to the module could be confirmed and criticized. The study on the usability is going to contribute to more pleasant and comfortable train environments and consequently, it's going to create new values of increased railway competitiveness by design.