• Title/Summary/Keyword: heuristic evaluation

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Development of a Usability Checklist for Mobile PhoneUser Interface Developers (휴대폰 UI 개발자를 위한 사용편의성 체크리스트의 개발)

  • Park, Jun Ho;Yun, Myung Hwan
    • Journal of Korean Institute of Industrial Engineers
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    • v.32 no.2
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    • pp.111-119
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    • 2006
  • In the last decade, the research of the usability of mobile phones has been a newly evolving area with few established methodologies and realistic practices that ensure capturing usability in evaluation. Thus, there exists a growing demand to explore appropriate evaluation methodologies that evaluate the usability of mobile phones quickly as well as comprehensively. This study aims to develop a task-based usability checklist based on heuristic evaluation in views of mobile phone UI practitioners. A hierarchical structure of UI design elements and usability principles related to mobile phones were developed and then utilized to develop the checklist. In order to demonstrate the practical effectiveness of the proposed checklist, comparative experiments were conducted on the usability checklist and usability testing. A majority of usability problems found by usability testing and additional problems were discovered by the proposed checklist. It is expected that the usability checklist proposed in this study could be used quickly and efficiently by usability practitioners to evaluate the mobile phone UI in the middle of the mobile phone development process.

Usability Evaluation and Improvements of Mobile Travel Apps

  • Kim, Yeonsuk;Kim, Heesun
    • International Journal of Internet, Broadcasting and Communication
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    • v.12 no.1
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    • pp.27-36
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    • 2020
  • The popularization of smartphones allows people to instantly get the information that they want, through mobile apps, including financial services, movies and public transportation reservations, games and shopping. Furthermore, leisure activities through overseas travel are increasing due to the improvement of the living standards of people. These increases in overseas travel and the use of mobile apps lead to the increased use of mobile travel apps when booking tour packages. Although there are many studies on the usability assessment and user interface improvement for mobile apps, studies on the usability assessment for mobile travel apps are limited. We tested the usability for mobile travel apps to present some suggestions for improvements so that anyone can purchase travel packages easily and simply. We selected the top three mobile travel apps on Rankey.com that have different UIs. The heuristic method was used to evaluate usability. We present a better UI to allow users to use the app functions more easily by analyzing user interaction, ease of learning, readability, efficiency, and satisfaction for the entire use.

Performance-measure of the domestic web site design (국내 웹 사이트 디자인의 행동적 사용성 측정)

  • Gwak, Ho-Wan;Gwak, Ji-Eun;Kim, Su-Jin
    • Journal of the Ergonomics Society of Korea
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    • v.18 no.3
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    • pp.87-103
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    • 1999
  • The present study employed an experimental usability testing technique to explore cognitive engineering characteristics of WWW. Based on the results of our previous study which employed non-experimental methods such as questionnaire and heuristic evaluation method, this study used a behavioral performance-measurement technique to evaluate the usability of a domestic web-site design. Specifically, we revised the menu and document structure of the original 'Movie-Friend' site to solve the design problems which were extracted from the results of the heuristic evaluation method of our previous study. Exp. 1 compared the relative navigation efficiency of the original frame menu site and the revised pop-up toolbar site, and Exp. 2 compared the toolbar menu site and the revised frame site. As a result of Exp. 1, the revised pop-up toolbar site showed improved navigation efficiency compared to the original site, as indicated by the mean latency and the number of pathways to reach the target page. However, we found no performance difference between the frame site and toolbar site in Exp. 2.

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Study on Evaluating a Large Scale Context-Aware System (Large-scale 맥락 인식 시스템의 평가 방법에 대한 연구)

  • Oh, Yoo-Soo;Woo, Woon-Tack
    • 한국HCI학회:학술대회논문집
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    • 2007.02b
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    • pp.375-380
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    • 2007
  • 맥락 정보와 맥락 인식 시스템에 대한 연구는 지난 10 여 년 동안 유비쿼터스 컴퓨팅 분야에서 중요한 이슈로 다루어졌다. 대부분의 맥락 인식 시스템은 위치 정보와 같이 단일 형태의 맥락 정보를 위해서 설계되었거나 연구실 수준의 크기로 제한되었다. 그러나 많은 종류의 센서와 actuator 를 포함하고 다수의 관리 도메인으로 확장 가능한 스케일이 큰 시스템에 대한 개발 및 평가는 여전히 미흡한 수준이다. 특히, 맥락 퓨전과 추론 구조를 가지는 Large-scale 의 맥락 인식 시스템에 대한 평가 방법이 필요한 실정이다. 본 논문에서는 휴리스틱 평가를 이용한 Large-scale 맥락 인식 시스템의 평가 방법에 대하여 제안한다. 그리고 우리는 동적인 맥락 인식 시스템을 지원하고 맥락 퓨전 및 추론을 위한 메커니즘을 포함하는 기본 구조에 대해서 자세히 설명한다. 맥락 인식 시스템 평가를 위해서 제안된 접근법은 사용자 인터페이스 도메인에서 잘 알려진 전문가에 의한 평가 방법으로 Large-scale 맥락 인식 시스템에 적합하도록 특별히 선택된 heuristics 집합을 이용하는 휴리스틱 평가(Heuristic Evaluation)이다.

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Strategies to Improve Usability of Electronic Commerce Sites of Agricultural Products (농산물 전자상거래 사이트의 사용성 개선방안에 관한 연구)

  • Lee, Dongwon;Jo, Suran;Moon, Junghoon
    • Agribusiness and Information Management
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    • v.1 no.1
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    • pp.37-62
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    • 2009
  • Web usability for e-commerce sites becomes a more important issue as e-commerce gains its popularity. As for agricultural products, consumers are especially sensitive to the quality of information during transaction process. Successful e-commerce sites of agricultural products, such as Wine.com and Tesco, identified regular usability testing as part of key success factors. This paper aims to identify processes for evaluating usability for e-commerce sites of agricultural products and provide strategies to improve usability. The study aims to evaluate e-commerce usability of selected e-commerce sites using heuristic evaluation to provide objective e-commerce sites usability analysis for each transaction process.

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Stragery UX design on Mobile learning (모바일 러닝에서 학습자 중심의 UX디자인 설계전략)

  • Choi, Eun-young;Song, Ye-Rim
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2017.05a
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    • pp.210-212
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    • 2017
  • A design which would let its users optimize their learning experiences accordingly to the diversification of learning platforms is needed. Especially with the expansion of mobile learning, a heuristic evaluation was used to evaluate the usability in order to provide learners with various learning methods and experiences according to the unique characteristics a mobile possesses. Therefore, we could conclude that systematic factors like information display, intuitiveness and conciseness do have a significant effect on users' attitudes.

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Usability Evaluation Method of Information Technology Product (정보기술 제품의 사용성 평가방법)

  • 임치환;이민구
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.16 no.28
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    • pp.69-75
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    • 1993
  • The evaluation of product may be classified by technical tests or by ergonomics assessments. If an ergonomics assessment is required, then the three types of interface dimension are available to the researcher. In this paper, we proposed the heuristic evaluation method for usability of product in the three types of interface dimension The evaluation method is used the fuzzy weighted checklist technique computerized for evaluating or comparing prototype of system and IT product.

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Improving the Usability of a Fresh Food E-commerce Site: Practical Application of the Heuristic Evaluation and Think Aloud Method (휴리스틱 평가와 발성사고법을 이용한 농식품 전자상거래 사이트 사용성 평가)

  • Lee, Dong-Won;Kim, Kyung-Min;Oh, Sang-Heon;Moon, Jung-Hoon
    • 한국HCI학회:학술대회논문집
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    • 2008.02b
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    • pp.608-613
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    • 2008
  • Web usability for e-commerce sites becomes a more important issue as e-commerce gains its popularity. As for fresh foods, consumers are especially sensitive to the quality of information during transaction process. Successful fresh food e-commerce sites, such as Wine. com and Tesco, identified regular usability testing as part of key success factors. This paper aims to identify processes for evaluating usability of fresh food e-commerce sites and provide recommendations to improve usability. The study aims to evaluate Web usability of selected Web sites using heuristic evaluation to provide objective Web usability analysis for each transaction process and think aloud method to understand how users actually evaluate the Web site.

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A Study on the Entropy Evaluation Method for Time-Dependent Noise Sources of Windows Operating System and It's Applications (윈도우 운영체제의 시간 종속 잡음원에 대한 엔트로피 평가 방법 연구)

  • Kim, Yewon;Yeom, Yongjin
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.28 no.4
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    • pp.809-826
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    • 2018
  • The entropy evaluation method for noise sources is one of the evaluation methods for the random number generator that is the essential element of modern cryptographic systems and cryptographic modules. The primary entropy evaluation methods outside of the country are more suitable to apply to hardware noise sources than software noise sources, and there is a difficulty in quantitative evaluation of entropy by software noise source. In this paper, we propose an entropy evaluation method that is suitable for software noise sources, considering characteristics of software noise sources. We select time-dependent noise sources that are software noise sources of Windows OS, and the heuristic analysis and experimental analysis are performed considering the characteristics of each time-dependent noise source. Based on these analyses, we propose an entropy harvest method from the noise source and the min-entropy estimation method as the entropy evaluation method for time-dependent noise sources. We also show how to use our entropy evaluation method in the Conditioning Component described in SP 800-90B of NIST(USA).

Ergonomic Analysis and Improvement of Crane Safety Certification Standards (크레인 안전인증기준에 대한 인간공학적 분석 및 개선)

  • Lee, Yongseok;Jung, Kihyo
    • Journal of the Korea Safety Management & Science
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    • v.23 no.3
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    • pp.1-9
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    • 2021
  • Crane is an important equipment for the transport of heavy goods in industrial sites, but it is also known as one of the most fatal machines. In order to reduce crane accidents, it is necessary to minimize human errors during crane operations. To achieve this, ergonomic design principles are recommended to be reflected from the crane design stage. The study analyzed the safety certification standards for crane that should be fulfilled at the crane design and manufacturing stage. This study selected five representative ergonomic design principles (feedback, compatibility, consistency, full-proof, and fail-safe) by surveying heuristic evaluation principles that are widely used for usability evaluation in early design stage. Next, the principles were applied to the safety certification standards to identify insufficient clauses. This study identified 12 insufficient clauses out of 119 in the current safety certification standards for crane and discussed their improvement directions to comply the ergonomic principles. The analysis results of this study can help of improving the safety certification standards and the method used in this study can also be applied to identify insufficient clauses in the safety certification standards for other industrial machines such as press machine and lift.