• Title/Summary/Keyword: Usability evaluation

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Verification of AI Voice User Interface(VUI) Usability Evaluation : Focusing on Chinese Navigation VUI (인공지능 음성사용자 인터페이스 사용성 평가 기준 검증 : 중국 내비게이션 VUI를 중심으로)

  • Zhou, Yi Mou;Shang, Lin Rru;Lim, Hyun Chan;Hwang, Mi Kyung
    • Journal of Korea Multimedia Society
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    • v.24 no.7
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    • pp.913-921
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    • 2021
  • After arranging the general usability evaluation criteria of existing VUI researchers, this study verified how appropriate these criteria are for AI VUI specialized in navigation and the priority of their suitability. The VUI used in this study was analyzed through a survey from a total of 195 Chinese users after analyzing the navigation VUI used in China. As a result of the analysis, the usability evaluation criteria of the navigation VUI were extracted from three sub-factors of 'task accuracy', 'function satisfaction', and 'information reliability' in verifying conformance with general VUI evaluation criteria. With the recent advent of self-driving cars, safety and response speed are becoming very important, so Chinese users also ranked responsiveness as the top priority in VUI design, and the importance was also found to be high. Also, both men and women have the highest reactivity and the lowest multiplicity. VUI requires a convenient and natural interface to understand the intention between two objects through usability evaluation and verification in order to have effective interaction between humans and machines.

A Study on the Analysis and Verification of Evaluation system for the Usability Evaluation of Purpose-Based XR Devices (목적 기반 XR 디바이스의 사용성 평가를 위한 평가체계 분석 및 검증 연구)

  • Young Woo Cha;Gi Hyun Lee;Chang Kee Lee;Sang Bong Lee;Ohung Kwon;Chang Gyu Lee;Joo Yeoun Lee;JungMin Yun
    • Journal of the Korean Society of Systems Engineering
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    • v.20 no.spc1
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    • pp.56-64
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    • 2024
  • This study aims to compare and evaluate the usability of domestic and overseas XR devices. With the recent release of 'Apple Vision Pro', interest in the XR field is increasing rapidly. XR devices are being used in various fields such as defense, medical care, education, and entertainment, but the evaluation system for evaluating usability is still insufficient. Therefore, this study aims to derive improvements in domestic equipment through comparative evaluation of usability for two HMD-type devices and one glasses-type device that are released. In order to conduct the study, 20 participants in their 20s to 30s who were interested in XR devices and had no visual sensory organ-related disabilities were evaluated by wearing VR equipment. As a quantitative evaluation, electromyography through an EMG sensor and the device and body temperature of the device through a thermal imaging camera were measured. As a qualitative evaluation, the safety of wearing, ease of wearing, comfort of wearing, and satisfaction of wearing were evaluated. As a result of comparing the usability of the devices based on the results, it was confirmed that domestic HMD-type device needs improvement in the strap part.

Classification of usability elements for the evaluation of the user interface of consumer electronic products (전자제품 휴먼 인터페이스 평가를 위한 사용편의성 요소의 체계적 분류)

  • 한수미;윤명환;한성호;곽지영;홍상우;박경수
    • Proceedings of the ESK Conference
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    • 1997.10a
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    • pp.372-375
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    • 1997
  • Classivication scheme of usability element for the evaluation of consumer electronic product was developed in this study. Using hierachical structuring and clustering methods, usability element of consumer products interface is developed both for the performance perspective and for the image/appeal perspective of a product. Perfoormance element included variables such as simplicity, directness, learn- ability, flexibility, user support and effectiveness. Image/Appeal element included variables such as sensibility, descriptive impression, evaluation of appeal, and attitude towards the product. The classifi- cation scheme developed in this study is found to be comprehensive and robust relative to other existing paradigms. They can be effectively used and applied for the usability evaluation of consumer electronic products.

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A Usability Evaluation Method Based on the Lostness of Unit Action for Coding Education Software (코딩 교육용 소프트웨어에 대한 단위 행동 손실률 기반의 사용성 평가 방법)

  • Park, Hee Sung;Park, Kwang-Hyun
    • The Journal of Korea Robotics Society
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    • v.10 no.2
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    • pp.96-103
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    • 2015
  • In this paper, we first point out the limitation of the existing methods in usability evaluation, and propose a new method to find tasks and users that can cause problems in the use of software applications. To deal with object-based applications, we define unit actions and divide a given task into the sequence of unit actions. Then, we propose a new measure to calculate the degree of lostness for the unit actions. In several experiments, we show the proposed method can represent the usability well while the previous method has a problem in object-based applications. We also find that the user's evaluation is more related to the proposed method than the previous method based on execution time through correlation analysis.

A Study on The Usability Evaluation Based on Text Analysis for The Development of Comfort-Shoes for Middle-Aged

  • KIM, Ji Ho;YOON, Sang Hoon;KWON, Ki Hyun;SEO, Jeong Kwon;HAN, Seung Jin
    • Journal of Sport and Applied Science
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    • v.3 no.2
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    • pp.17-27
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    • 2019
  • Purpose: This study is to conduct usability evaluations from the perspective of developing comfort-shoes for the middle-aged and elderly to identify key factors and derive implications for optimal comfort-shoes production. Research design, data, and methodology: A total of 10 middle-aged and elderly women in their 50s and 60s were selected as eligible for the rescue. For data collection, the study was conducted in a Gang Survey, where pre-explanations, shoes test, and interviews were conducted. The collected data were analyzed in a total of four stages. In step 1, the contents obtained through interviews with the subjects were recorded in text, organized and analyzed systematically, and in step 2, unnecessary vocabulary, sentences, and overlapping opinions were eliminated. In step 3, we classified areas around key functions and carried out categorization tasks. Finally, in Step 4, the results and implications of the study were derived by classifying each usability evaluation shoe as positive and negative text around categorized data. Results: There are a total of seven factors for comfort-shoes usability evaluation, which are categorized as cushion, fitting, stability, flexibility, lightweight, comfort, and pressure. Positive/negative factors for the derived usability evaluation factors were shown in the form of a positive-centered, negative-centered, and positive-mixed mix for each of the four products. Positive-focused products are VA products, which are seven times more positive than negative factors. Negative-centered products are CL and SA products, which are five times more negative than positive factors. Positive mixing was a CA product with a ratio of 1:1. Text-based usability evaluations allow us to proceed with analysis based on more scientific data rather than simply listening to opinions and judging by comments. Conclusions: The study discussed implications of developing comfort-shoes for middle-aged consumers and future directions were discussed.

Application of Usability Engineering Model based on Product's Life Cycle (제품의 수명주기에 의한 사용성 공학 모형의 적용)

  • 이민구;임치환
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.17 no.30
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    • pp.177-184
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    • 1994
  • The importance of usability evaluation is increasing in developing the system(or product). Many usability measures and test methods have been developed in the fields of ergonomics and cognitive engineering. A systematic usability effort using established methods may be qualify as usability engineering. In this paper, general aspects of the usability engineering are introduced, and application methods of usability engineering model based on product's life cycle are presented.

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Quantitative Analysis of Construction Site Layout: A Usability Evaluation Study (건설현장배치 수준의 정량적 평가: 사용성평가 방법을 활용하여)

  • Park, Seonghun;Kim, Tae Wan;Son, Bosik
    • Korean Journal of Construction Engineering and Management
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    • v.23 no.5
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    • pp.34-42
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    • 2022
  • Construction site layout is attracting attention as efficient use of construction site space greatly affects the duration and cost of the overall construction. Therefore, there are many studies that automate and optimize construction site layout planning. However, the usability of construction site, which consists of goal variables of the studies, has still been unknown. Therefore, the authors present the evaluation criteria for usability of construction site layout and evaluate the usability of domestic construction sites through user survey. Furthermore, the difference in usability between construction site managers and construction site workers was confirmed. As a result of the survey, domestic construction site layout had a low effectiveness and had the lowest score in the environment category. In addition, construction site workers scored lower overall than construction site managers. Through such usability evaluation results, it contributed to the construction site layout theory by assessing current construction site layout practice and suggesting an improvement direction for automating site layout planning.

Evaluating the Effectiveness of Nielsen's Usability Heuristics for Computer Engineers and Designers without Human Computer Interaction Background (비 HCI 전공자들을 대상으로 한 Nielsen의 Usability Heuristics에 대한 이해 정도 평가)

  • Jeong, YoungJoo;Sim, InSook;Jeong, GooCheol
    • The Journal of Korean Institute for Practical Engineering Education
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    • v.2 no.2
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    • pp.165-171
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    • 2010
  • Usability heuristics("heuristics") are general principles for usability evaluation during user interface design. Our ultimate goal is to extend the practice of usability evaluation methods to a wider audience(e.g. user interface designers and engineers) than Human Computer Interaction(HCI) professionals. To this end, we explored the degree to which Jakob Nielsen's ten usability heuristics are understood by professors and students in design and computer engineering. None of the subjects received formal training in HCI, though some may have had an awareness of some HCI principles. The study identified easy-to-understand heuristics, examined the reasons for the ambiguities in others, and discovered differences between the responses of professors and students to the heuristics. In the course of the study, the subjects showed an increased tendency to think in terms of user-centric design. Furthermore, the findings in this study offer suggestions for improving these heuristics to resolve ambiguities and to extend their practice for user interface designers and engineers.

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