6 research outputs found

    Incorporating Affective Customer Needs for Luxuriousness into Product Design Attributes

    No full text
    In a highly competitive market, customers'''''''' product affection is I critical factor to product Success. However, understanding customers'''''''' affective needs is difficults to grasp. product design practitioners often misunderstand what customers really want. In this study we report our experience in developing and using an affective design framework that identified critical affective features customers have on products and are systematically incorporated into product design attributes. To identify key affective features Such as luxuriousness, we utilized the Kansei engineering methodology. This approach consists of three steps: (1) selecting related affective features and product design attributes through a comprehensive literature survey, expert panel opinion, and focus group interviews (2) conducting evaluation experiments and (3) developing Kansei models using multivariate statistical analysis and analyzing critical product design attributes. To demonstrate applicability of the proposed affective design framework, 30 customers and 30 product design practitioners participated in an evaluation experiment for car crash pads, and 44 customers and 20 designers participated in an evaluation experiment for two interior room products (wallpapers and flooring materials). The evaluation experiments were conducted via systematically developed questionnaires consisting of a 7-point semantic differential scale and a 100-point magnitude estimation scale. The results of the experiments were analyzed using principal component regression and quantification theory type I method. Using the analyled survey data, the relationship between luxuriousness and related affective features and product design attributes were identified. This relationship indicated that there was a significant difference in the perception of luxuriousness between customers and designers. Consequently, it is expected that the results of this study could provide a foundation for developing affective products. (C) 2009 Wiley Periodicals, Inc.Llinares C, 2007, BUILD ENVIRON, V42, P2488, DOI 10.1016/j.buildenv.2006.06.012Khalid HM, 2006, CONCURRENT ENG-RES A, V14, P197, DOI 10.1177/1063293X06068387You H, 2006, INT J IND ERGONOM, V36, P323, DOI 10.1016/j.ergon.2005.12.007Mondragon S, 2005, INT J IND ERGONOM, V35, P1021, DOI 10.1016/j.ergon.2005.05.001Schutte S, 2005, APPL ERGON, V36, P557, DOI 10.1016/j.apergo.2005.02.002Alcantara E, 2005, INT J IND ERGONOM, V35, P713, DOI 10.1016/j.ergon.2005.02.005HELANDER MG, 2005, HDB HUMAN FACTORS ER, P543Ou LC, 2004, COLOR RES APPL, V29, P232, DOI 10.1002/col.20010Petiot JF, 2004, INT J IND ERGONOM, V33, P507, DOI 10.1016/j.ergon.2003.12.004JANG HJ, 2004, THESIS YONSEI U SEOUHelander MG, 2003, ERGONOMICS, V46, P1269, DOI 10.1080/00140130310001610810Yun MH, 2003, ERGONOMICS, V46, P1423, DOI 10.1080/00140130310001610919Demirbilek O, 2003, ERGONOMICS, V46, P1346, DOI 10.1080/00140130310001610874Liu RX, 2003, COMPUT METH PROG BIO, V71, P141, DOI 10.1016/S0169-2607(02)00058-5TSENG M, 2003, CUSTOMER CENTRIC ENTHOUSER KW, 2003, LIGHTING RES TECHNOL, V35, P183NAGAMACHI M, 2002, ERGONOMICS DESIGN, V10, P5Chuang MC, 2001, INT J IND ERGONOM, V27, P233MONTGOMERY DC, 2001, ENG STATYUN MH, 2001, P HUM FACT ERG SOC 4, P712Hsu SH, 2000, INT J IND ERGONOM, V25, P375CROSS N, 2000, ENG DESIGN METHODS SJORDAN PW, 2000, P C PLEAS BAS HUM FASlater SF, 1998, STRATEGIC MANAGE J, V19, P1001Huffman C, 1998, J RETAILING, V74, P491PORTER ME, 1998, COMPETITIVE ADVANTAGHEO MH, 1998, QUANTIFICATION METHONAGAMACHI M, 1998, INTRO KANSEI ENGTanoue C, 1997, INT J IND ERGONOM, V19, P115Jindo T, 1997, INT J IND ERGONOM, V19, P105Nakada K, 1997, INT J IND ERGONOM, V19, P129*POST, 1997, DEV US EV METH UNPUBKRIPPENDORFF K, 1995, IDEA DESIGN, P156CLAUSING DP, 1994, TOTAL QUALITY DEV STLACHANCEPORTER S, 1993, P 14 NAT ON LIN M NE, P265HAUGE PL, 1993, ASME PUBLICATION, V53, P73GRIFFIN A, 1992, MARKET SCI, V12, P1DRUCKER PF, 1985, INNOVATION ENTREPRENOSGOOD C, 1967, MEASUREMENT MEANING

    A Survey of Koreans on Sleep Habits and Sleeping Symptoms Relating to Pillow Comfort and Support

    No full text
    The number of people who complain of sleep disturbances is steadily increasing. An understanding of sleep-related factors is required to address sleep problems. This survey study investigated the sleep habits and sleeping symptoms relating to the comfort and support characteristics of pillows and the relationship between sleep quality and pillow design factors. The study utilized data from 332 participating Korean adults aged 20–76 years (mean age ± SD: males, 40.4 ± 15.2; females, 42.9 ± 15.4). We developed a questionnaire that evaluated sleep habits (sleep duration, bedtime, wake-up time and sleeping position); sleeping symptoms (snoring or coughing, breathing and sleepiness during waking hours) based on the Korean version of the Pittsburgh Sleep Quality Index (PSQI-K) questionnaire; and pillow-related factors (support, comfort, fatigue, height and shape) from existing pillow studies. The average sleep duration was 6.8 h, with more than half (52%) of participants sleeping in the supine position. The overall score for sleep quality was considered poor (4.84 points on a seven-point Likert scale), with some degree of sleepiness during waking hours (4.4 points on a seven-point Likert scale). Females went to bed earlier than males and were more likely to sleep in the lateral position compared to males. The number of toss and turn or waking events during sleep increased with age, and older individuals went to sleep earlier and woke up earlier. Among the symptoms of fatigue, pain, discomfort with changing position, snoring, coughing and breathing discomfort, participants reported their highest levels of discomfort due to sleepiness after waking, and they experienced the least head pain. Participants who used a regular-type pillow had poorer satisfaction on multiple comfort and support factors (support, comfort, height suitability, shape suitability) compared with those who used a functional-type pillow. Less head fatigue, less neck fatigue and less shoulder pain had significant effects on sleep quality. To reduce neck fatigue and shoulder pain, designers should consider the height for neck support in the lateral position. To reduce neck fatigue, it is desirable to use materials like latex or memory foam that provide neck support, which can improve sleep quality. The findings of this study contribute to a better understanding of sleep habits and characteristics of pillow comfort and provide practical guidelines for better pillow designs

    Identification of Gait and Personal Factors Associated with Shoe Abrasion Patterns

    No full text
    Shoe abrasion data can be used as major evidence to distinguish suspects, but their actual application in the field is limited due to a lack of associated empirical studies. This study analyzed the significant factors of shoe abrasion by identifying significant differences between gait, personal characteristics, and shoe abrasion patterns. Experiments were conducted on 291 Korean subjects, and data were analyzed using cluster analysis and cross-tabulation analysis with data collected to identify significant factors. As a result, overall, medial abrasion was very rare and would be useful for human identification. The greater the gait characteristics of the knee valgus, the greater the inner abrasion characteristics shown. In the case of knee varus, outer abrasion characteristics occurred more often. Additionally, in the double support phase while walking, the greater the tilt to the left or right, the more the outer parts of the shoes tend to wear out. Men have the characteristic of wearing out the outer side of their shoes more compared to women. Regarding human body dimensions, there were significant differences between the abrasion patterns of the shoes with some body dimensions. The results of this study could be used effectively in the identification of suspects using shoe abrasion patterns
    corecore