• Title/Summary/Keyword: Remote Usability Evaluation

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Development of Remote Usability Evaluation Guidelines for Children (아동 대상 원격 사용성 평가 가이드라인 개발)

  • Jung, Tae-Won;Ha, Kwang-Soo
    • The Journal of the Korea Contents Association
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    • v.21 no.3
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    • pp.121-130
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    • 2021
  • The increased competition in service development in various industrial sectors highlights the importance of producing high-quality services that provide a positive user experience. Although usability evaluation is recognized as an important method of verification of high quality service and utility, the general usability evaluation method has limitations of not taking the characteristics of various participants due to its uniform composition to account. As the following flaws can reduce evaluation efficiency, developing a new guideline seems to be the next step. Thus, this study focused on criteria on how to evaluate the usability for children and proposed non-face-to-face remote usability evaluation configurations and progress guidelines to increase the effectiveness. The following usability evaluation experiment was conducted based on the proposed guidelines and in this process, the effectiveness of the guidelines was verified and the items that needed to be supplemented were derived. It is expected that the non-face-to-face remote usability evaluation guidelines proposed through the study will be used as the basis for designing usability evaluations of services developed for children.

Development of usability evaluation index of convergence technology remote fluid monitoring device for non-face-to-face patient nursing system application and analysis of results (비대면 환자 간호시스템 적용을 위한 융합기술의 원격 수액모니터링 장치 사용성평가 지표 개발 및 결과 분석)

  • Kim, Seon-Chil
    • Journal of the Korea Convergence Society
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    • v.13 no.4
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    • pp.137-145
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    • 2022
  • The usability evaluation of the remote fluid monitoring device, which was introduced to reduce the work of nurses and increase the efficiency, was performed due to the expansion of the non-face-to-face medical system. Remote fluid monitoring is a fusion of various technologies such as fluid measurement and analysis, error correction technology, and transmission technology. The range of use by users, the information they want to obtain, and the control device, etc. are wide, and the factors that evaluate the product are also diverse. Therefore, it is difficult to improve the product through evaluation. In this study, a quantitative index was developed to help improve the product for commercialization by conducting 20 usability evaluations in three areas of product stability, operability, and satisfaction with the remote sap monitoring system device. It was performed through infrared and load cell-type sap monitoring devices. In terms of stability, there was a difference in installation work such as fixing the pole of the device, and high satisfaction was shown for operability and accuracy. In terms of product satisfaction, the satisfaction of load cell devices was generally high.

A Study on Remote Usability Test & Evaluation for Web Sites -with emphasis on the development of remote interaction observation & analysis software (웹사이트 원격 사용성 테스트에 관한 연구 - 원격 사용자 인터랙션 관찰 및 분석 도구의 개발을 중심으로)

  • 오기태;이건표
    • Archives of design research
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    • v.17 no.3
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    • pp.147-156
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    • 2004
  • Currently, usability tests for web sites with representative users are conducted in laboratory environment that disturbs subjects' natural behavior. These test methods are inefficient for tests that require large number of subjects, because experimenters and subjects should be located in the same place at the same time during the test. In this study, a remote usability test tool, called 'RIO' has been developed to cope with these laboratory-based experiment problems - the 'synchronism' and the 'unnatural environment'. The tool is separated into three parts: 'Project Manager', 'Remote Interaction Observer', and 'Interaction Analyzer'. 'Project Manager' sets up overall experimental parameters and actual tasks to be peformed by subjects. 'Remote Interaction Observer', endued with Microsoft Internet Explorer Control, is a modified Web Browser which records user interactions, screen images and elaborate browser events while subject performs given tasks. This module is distributed to subjects as an installable software package. When they finish all the tasks, the captured interaction data is compressed and sent to 'Interaction Data Server' automatically. 'Interaction Analyzer' visualizes interaction data from the 'Interaction Data Server'. It also generates project-scope statistics which facilitate discovering peculiar cases among interaction submissions.

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Investigating Key User Experience Factors for Virtual Reality Interactions

  • Ahn, Junyoung;Choi, Seungho;Lee, Minjae;Kim, Kyungdoh
    • Journal of the Ergonomics Society of Korea
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    • v.36 no.4
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    • pp.267-280
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    • 2017
  • Objective: The aim of this study is to investigate key user experience factors of interactions for Head Mounted Display (HMD) devices in the Virtual Reality Environment (VRE). Background: Virtual reality interaction research has been conducted steadily, while interaction methods and virtual reality devices have improved. Recently, all of the virtual reality devices are head mounted display based ones. Also, HMD-based interaction types include Remote Controller, Head Tracking, and Hand Gesture. However, there is few study on usability evaluation of virtual reality. Especially, the usability of HMD-based virtual reality was not investigated. Therefore, it is necessary to study the usability of HMD-based virtual reality. Method: HMD-based VR devices released recently have only three interaction types, 'Remote Controller', 'Head Tracking', and 'Hand Gesture'. We search 113 types of research to check the user experience factors or evaluation scales by interaction type. Finally, the key user experience factors or relevant evaluation scales are summarized considering the frequency used in the studies. Results: There are various key user experience factors by each interaction type. First, Remote controller's key user experience factors are 'Ease of learning', 'Ease of use', 'Satisfaction', 'Effectiveness', and 'Efficiency'. Also, Head tracking's key user experience factors are 'Sickness', 'Immersion', 'Intuitiveness', 'Stress', 'Fatigue', and 'Ease of learning'. Finally, Hand gesture's key user experience factors are 'Ease of learning', 'Ease of use', 'Feedback', 'Consistent', 'Simple', 'Natural', 'Efficiency', 'Responsiveness', 'Usefulness', 'Intuitiveness', and 'Adaptability'. Conclusion: We identified key user experience factors for each interaction type through literature review. However, we did not consider objective measures because each study adopted different performance factors. Application: The results of this study can be used when evaluating HMD-based interactions in virtual reality in terms of usability.

Design and experimentation of remote driving system for robotic speed sprayer operating in orchard environment

  • Wonpil, Yu;Soohwan Song
    • ETRI Journal
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    • v.45 no.3
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    • pp.479-491
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    • 2023
  • The automation of agricultural machines is an irreversible trend considering the demand for improved productivity and lack of labor in handling agricultural tasks. Unstructured working environments and weather often inhibit a seemingly simple task from being fully autonomously performed. In this context, we propose a remote driving system (RDS) to aid agricultural machines designed to operate autonomously. Particularly, we modify a commercial speed sprayer for orchard environments into a robotic speed sprayer to evaluate the proposed RDS's usability and test three sensor configurations in terms of human performance. Furthermore, we propose a confidence error ellipsebased task performance measure to evaluate human performance. In addition, we present field experimental results describing how the sensor configurations affect human performance. We find that a combination of a semiautonomous line tracking device and a wide-angle camera is the most effective for spraying. Finally, we discuss how to improve the proposed RDS in terms of usability and obtain a more accurate measure of human performance.

A Study on the LED Button Guide to improve the IPTV's Usability (IPTV 사용성 향상을 위한 LED 버튼 가이드)

  • Kim, Sung-Hee;Kim, You-Min;Jung, Jae-Wook;Lee, Dong-Wook;Ryu, Won;Hahn, Min-Soo
    • 한국HCI학회:학술대회논문집
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    • 2009.02a
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    • pp.933-937
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    • 2009
  • The IPTV which was commercialized and is being serviced to customers at present has a complicated GUI (Graphical User Interface) to provide two-way services and a remote control containing more than 40 buttons unlike the conventional TV. Accordingly, the remote control becomes one of the causes that make the usability of the IPTV worsen. In this paper, we suggest a LED button guide system as a solution to improve a usability of the IPTV, and analyze the effects of the interface obtained from the user evaluation on the user action.

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Usability Evaluation and Derivation of Improvement for Care Robots to Prevent Pressure Injury (욕창예방 돌봄로봇의 사용성 평가 및 개선사항 도출)

  • Min-jung Kim;Yong-Soon Shin
    • The Journal of Korea Robotics Society
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    • v.18 no.4
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    • pp.409-418
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    • 2023
  • The purpose of this study is to evaluate the usability of the care robots to prevent pressure injury and to present directions for improvement. Thirty-two caregivers of severely disabled people and older adults with mobility difficulties participated in this study. They used the care robot in a real care environment for 2 weeks and conducted pre and post-care interviews. Based on the interview results, improvements were derived through the technical modeling method of care robots. Considering the circumstances in which caregivers take care of a large number of patients in nursing homes and hospitals, it is necessary to ensure the convenience and safety of remote control and side rail operation of the care robots to prevent pressure injury. We expect that the results of this study will be used as basic data for development of care robots to prevent pressure injury.

Design and Validate Usability of New Types of HMD Systems to Improve Work Efficiency in Collaborative Environments (협업 환경에서 작업 효율 향상을 위한 새로운 형태의 HMD 시스템 설계 및 사용성 검증)

  • Jeong-Hoon SHIN;Hee-Ju KWON
    • Journal of the Institute of Convergence Signal Processing
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    • v.24 no.1
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    • pp.57-68
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    • 2023
  • With the technological development in the era of the 4th Industrial Revolution, technologies using HMD are being applied in various fields. HMD is especially useful in virtual reality fields such as AR/VR, and is very effective in receiving vivid impressions from users located in remote locations. According to these characteristics, the frequency of using HMD is increasing in the field related to collaboration. However, when HMD is applied to collaboration, communication between experts located in remote locations and workers located in the field is not smooth, causing various problems in terms of usability. In this paper, remote experts and workers in the field use HMD to solve various problems arising from collaboration, design/propose new types of HMD structures and functions that enable more efficient collaboration, and verify their usability using SUS evaluation techniques. As a result of the SUS evaluation, the new type of HMD structure and function proposed in this paper was 86.75points, which is believed to have greatly resolved the restrictions on collaboration and inconvenience in use of the existing HMD structure. In the future, when the HMD structure and design proposed in this paper are actually applied, it is expected that the application technology using HMD will expand rapidly.

A study for Secure the Reliability of Automated Guided Vehicle Remote Control System (무인운반차 RCS(Remote Control System)의 신뢰확보를 위한 연구)

  • Jeon, Hyong-Mo;Kang, Sang-Won
    • Journal of Digital Convergence
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    • v.15 no.5
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    • pp.207-215
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    • 2017
  • With rapid development of IT technology and biotechnology, human lifespan is extended rapidly, and we are living in the era where aging becomes the social issue. Due to this aging problem, manpower is mainly replaced by Automated Guided Vehicles (AGV) in manufacturing factories or warehouse logistics transportation. Rate of AGV use increases sharply every year. AGVs, which were used only in Smart Factories, extends its usage into indoor and outdoor operation by changing their usages to container transportation that can carry huge containers in the harbor. With the expansion of AGVs usage, the importance of RCS (Remote Control System) is also increased. In this study, we surveyed and analyzed the characteristics and technology trends of technical features of AGV's RCS that are developing in various ways to establish quality evaluation system of AGV RCS. Based on this, and by referring to international quality assessment standards, ISO/IEC 25000 series, we derived evaluation items on functional suitability and usability to secure reliability of AGV RCS. Also, it is our intention to develop evaluation model using those derived usability and reliability evaluation items.