• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2001년도 Bulletin of The 5th Asian Design Conference International Symposium on Design Science
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• pp.23.1-23
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• 2001

• 유통과학연구
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• 제17권12호
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• pp.55-62
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• 2019

Purpose: The number intelligent homecare products are focused on the development of technology, resulting in a lack of realistic environments or requirements for consumers. The purpose of this paper is to define the consumer and context for intelligent homecare products and to develop a usability evaluation scale. Research design, data and methodology: For this study, first, consumer and contexts related to intelligent homecare products were analyzed through literature review. Second, the primary usability evaluation factors were derived for intelligent homecare products by collecting the factors related to usability evaluation and conducting in-depth interviews with experts. Third, the second usability evaluation factors were derived through survey and statistical analysis based on the derived usability evaluation factors. Results: As a result, users of intelligent homecare products were classified as primary users and secondary consumers and six related contexts. The usability evaluation scale was established with four factors - Functionality, Error, Convenience, and Emotion - and 13 items. Conclusions: This study can be the basis for developing and distributing products that meet the consumer environment and requirements related to intelligent homecare products that will contribute to securing the competitiveness of companies and developing the technology and service value of related industries.

• International Journal of Computer Science & Network Security
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• 제21권11호
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• pp.59-66
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• 2021

Many incidents of Carbon Monoxide (CO) poisoning have occurred because of people being unaware of its presence. There are currently available systems on the market, but they are limited to measuring CO in a certain area and lack vital functions. Additionally, little to no evidence-based information on their quality was available. Thus, a mobile application for detecting CO gas leakage in a vehicle and critical features to assist victims was developed. A usability and functionality test were conducted to determine the product's quality utilizing nine usability and six functionality task scenarios (n=5). Then, a System Usability Scale test was performed to obtain system satisfaction, usability, and learnability (n=50). The usability and functionality test shows that all the tasks given for both tests were 100% successful. The overall score obtained for SUS was 71.4, which indicates good acceptance and usability. Around 20% of respondents claimed that they would need the support of a technical person to be able to use the application and that they needed to learn a lot of things before they could use the application, which indicates the overall high learnability of the application. The result provides empirical evidence that the CO gas leakage detection mobile application is successful and receives good usability, functionality, acceptability, learnability, and satisfaction assessments. DetGas could benefit automobile owners and other stakeholders by mitigating the risk and harm associated with gas leaking that exceeds the safe limit.

• 한국인터넷방송통신학회논문지
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• 제17권3호
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• pp.227-234
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• 2017

본 논문은 쇼핑몰 플랫폼에 있는 상품을 이미지 기반으로 카테고리를 자동 분류하는 시스템 구현에 관한 연구내용이다. 인터넷 쇼핑몰에서 판매되는 수많은 제품은 용도 중심으로 정의된 카테고리 구조 속에서 제품을 분류하고 있다. 하지만 상품의 분류가 불확실하여 쇼핑몰 판매자 판단으로 분류된 상품과 구매 사용자 판단이 다를 경우는 카테고리 분류에 의한 검색이 어렵다. 본 연구에서는 상품 이미지를 이용하여 딥 러닝(Deep Learning) 기술에 의한 분류와 검색 방법을 제안하며, 상품 이미지만으로 분류를 수행 한 후, 검증 데이터를 통해서 그 속도와 정확도를 수치화하였다. 또한, 성능 비교는 동일한 검증 데이터를 사용하여 실험 참가자의 설문 테스트를 통해서 그 사용성 평가를 실시하였다.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제21권4호
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• pp.308-314
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• 2015

사용성에 대한 사람들의 관심이 증가하고 있는 반면, 사용성 평가 계획의 수립과 진행, 평가결과의 수집과 분석을 지원하는 시스템은 미비한 실정이다. 사용성 평가는 크게, 사용성 평가 계획 수립, 실제 평가 진행, 평가 후 결과 수집 및 분석의 절차를 가지고 있으며, 본 논문에서는 사용성 평가의 전 과정에서 활용할 수 있는 웹 기반 사용성 평가 시스템을 설계 및 구현하였다. 따라서, 사용성 평가에 참가하는 참가자들은 언제 어디서나 기기에 상관없이 효과적으로 사용성 평가에 참여하고, 사용성 평가 책임자는 평가 관련 문서와 결과 데이터를 보다 효율적으로 관리하고 평가의 전 과정의 진행에서 신뢰도를 높일 수 있는 시스템을 구현하는 데 목표를 두었다. 웹 기반 사용성 평가 시스템은 제품의 사용성 평가를 실제 사용하는 장소에서 바로 수행할 수 있다는 장점과 이동이 불편한 장애인 대상 제품의 사용성 평가에 유용할 것으로 기대한다.

• 한국융합학회논문지
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• 제12권5호
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• pp.31-38
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• 2021

최근 일반인의 배뇨활동에 도움을 주는 장치가 개발되고 있으나, 사용자의 배뇨 습관과 기능, 사용자의 접근성 등을 고려한 제품은 부족하다. 본 연구에서는 배뇨활동에 도움을 주는 장치 중 자동 석션 기능 등 융, 복합 기능을 지니고 있는 스마트 자동 소변처리기를 기준으로 사용자의 만족도와 제품의 개선점을 찾고자 사용성평가를 실시하였다. 개발된 사용성평가 지표는 모두 21개이며, 안전성과 조작성, 만족도를 기준으로 개발하였다. 그 결과 기능적인 만족도는 높았으나, 디자인 측면에서는 손잡이 등의 개선해야 할 문제점이 제시되었다. 따라서 본 연구를 통해 자동 소변처리기의 성능측면의 만족도가 제품을 대표할 수 없으며, 제품의 문제점을 찾기 위한 사용성평가 지표 개발의 중요성을 알게 되었다.

• 품질경영학회지
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• 제45권4호
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• pp.717-738
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• 2017

Purpose: This study focused on procedure and methodology for finding the critical design factors in the early stage of product development process. Methods: Firstly, three key criteria, function, affection and usability were defined as the determining factors on customer satisfaction. Secondly, evaluation matrix in terms of each key criteria was proposed for extraction of the critical design factors. Lastly, method of integrating the importance among three key criteria was suggested using structured equation model. Results: As a results of integrating the importance, design factors such as touch sensitiveness and touch method were rated as low in terms of affection. However, these factors were obtained for high ratings with respect to functionality and usability. Thus, touch-related design factors were more facilitated for enhancing customer satisfaction. Conclusion: It is expected that the process suggested in this research could be a considerably useful to maximize customer satisfaction in the early stage of product development process.

• Journal of Information Technology Applications and Management
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• 제27권2호
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• pp.37-50
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• 2020

This paper is very exploratory and addresses the issue 'Is a general quality model of software possible?'. If possible, how specific can/should it be?' ISO 25000 Series SQuaRE is generally regarded as a general quality model which can be applied to most kinds of software. Usability is one of the 8 characteristics of SQuaRE's Product Quality Model. It is the main issue associated with SQuaRE's Quality in Use Model too. it is the most important concept associated software quality since using is the only ultimate goal of software products. Playability, however, is generally regarded as a special type of usability, which can be applied to game software. This common idea contradicts with the idea that SQuaRE is valid for most kinds, at least many kinds, of software. The empirical evidences of this paper show that SQuaRE is too specific to be a general quality model of software.

• 대한물리치료과학회지
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• 제30권4호
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• pp.1-8
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• 2023

Background: This study evaluates the usability of the Motion-Tracking Gait Assistive Walker (MTGAW) designed for elderly individuals and those with disabilities, identifying areas for improvement through interviews with physical and occupational therapists. Design: A survey study involves the usability test for MTGAW. Methods: Usability evaluations were conducted with 37 physical therapists and occupational therapists. The process included explanation, product usage, satisfaction surveys, and interviews. A satisfaction survey covering 19 items across safety, maneuverability, usability, and management areas was administered. Individual interviews identified areas for improvement. Results: Overall, high satisfaction was reported across the four areas, but interviews highlighted the need for improvements, such as addressing discomfort due to slow speed and enhancing safety measures to prevent rear-end falls. Adjusting the walker's height and width to suit the user's physique was also suggested. Conclusion: MTGAW enhances walking support and hand movement freedom but needs refinement in speed control, fall prevention, and customization based on the user physique. Future efforts should focus on developing an improved MTGAW, considering recommendations from physical therapy experts, and conducting studies to analyze its clinical effectiveness for commercialization.

• 대한인간공학회지
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• 제29권6호
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• pp.831-841
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• 2010

Usability evaluation of physical products involves characterizing complex physical interactions between humans and products. Human models known as manikins have been widely utilized as usability evaluation tools for automobile interior package design. When combined with computer-aided design software programs, such manikins can be used to simulate driving postures and evaluate driver-interior fits early in the design process, and therefore, may greatly facilitate achieving high-quality design in a cost-efficient manner. The purpose of this study was to define a set of manikins for designing automobile interior packages for the South Korean male population. These manikins were conceptualized as "boundary" manikins, which represent individuals lacking in certain physical capacities or having usability-related issues (e.g., an individual with the 5th percentile forward reach capability, an individual with the 95th percentile shoulder width). Such boundary manikins can serve as an efficient tool for determining if an automobile interior design accommodates the majority of the population. The boundary manikins were selected from the large sample of Korean males whose anthropometric dimensions were described in the recent Size Korea anthropometric database. For each male in the database, his comfortable driving posture was represented using a kinematic body linkage model and various physical capacity measured and usability-related characteristics relevant to driver accommodation were evaluated. For each such measure, a boundary manikin was selected among the Korean males. The manikins defined in this study are expected to serve as tools for ergonomic design of automobile interior packages. The manikin selection method developed in this study was implemented as a generic software program useful for various product design applications.