• 한국멀티미디어학회논문지
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• 제20권8호
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• pp.1338-1346
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• 2017

To achieve software quality and human-centred design for electronic ship navigation called e-navigation, an international guideline of software quality assurance and human-centred design was approved in 2015. Usability is a common goal of both software quality assurance and human-centred design as developing e-navigation system and software developments. Therefore, research is needed to evaluate the usability of e-navigation systems and software such as metrics that can use usability testing. This paper derives effectiveness metrics for e-Navigation usability testing based on international standards. The research method is to analyses and compares the effectiveness measurement and metrics in ISO 9241-11 for human-centered design and ISO/IEC 25022 and 25023 for software quality to find out measurements and metrics being defined commonly. The derived metrics are applied to Electronic Chart Display and Information System as a case study based on performance standard.

• 재활복지공학회논문지
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• 제10권2호
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• pp.127-132
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• 2016

본 연구에서는 국내 OCW 강좌가 시각 및 청각장애 대학생들이 인식하기에 접근성 측면에서 어떠한 문제점을 가지고 있는지를 파악하기 위해 사용성 평가를 실시하였다. 이에 시각장애 6명(전맹 3, 저시력 3), 청각장애 4명(농 2명, 난청 2명) 총 10명의 시각, 청각장애를 가진 대학생들이 국내 KOCW 사이트에서 제공하고 있는 두 가지 유형의 강좌를 대상으로 사용성 평가를 실시하였다. 평가 결과, 시각, 청각장애 학생들이 인식하게 두 유형의 강좌 모두 보통 이하의 낮은 수준의 사용성과 접근성 수준을 보이는 것으로 평가되었다. 이러한 연구결과를 통해서 시각, 청각장애인을 위해 OCW 설계 시 고려해야 할 점을 제안하였다.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 1998년도 가을 학술발표대회 논문집 디자인 학 연구
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• pp.84-85
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• 1998

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2002년도 가을학술발표대회 디자인학 연구
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• pp.156-157
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• 2002

• 디지털콘텐츠학회 논문지
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• 제17권1호
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• pp.43-50
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• 2016

본 연구에서는 OCW로 제공되는 강좌가 시각, 청각 장애학생들이 인식하기에 사용성 측면에서 어떠한 장점과 문제점을 가지고 있는지를 파악하기 위해 사용성 평가를 실시하였다. 이에 시각장애 학생 8명, 청각장애 학생 4명으로 총 12명의 장애 대학생들을 선정하여 사용성 평가를 실시하였다. 사용성 평가 대상은 해외 edX와 국내 KOCW에서 제공하고 있는 강좌를 한 개씩 선정하여 실시하였다. 평가 결과, 일반적인 사용성 수준에서는 평균적으로 보통 수준을 나타내었는데, 장애인 접근성 측면에서는 edX가 KOCW 강좌보다 다소 높은 수준으로 평가되었다. 장애영역별로 살펴보면, 청각장애 학생들은 edX에서 제공하는 강좌에 대해 높은 평가를 하였고, 시각장애 전맹 학생들은 KOCW에서 제공하는 강좌에 대해 높은 사용성을 보이는 것으로 평가했다. 저시력 장애학생들은 두 강좌에 대해 비슷한 수준의 평가 양상을 나타냈다.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2006년도 학술대회 1부
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• pp.909-917
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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 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 evaluations 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. 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.

• 대한산업공학회지
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• 제32권2호
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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.

• 인지과학
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• 제11권1호
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• pp.33-45
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• 2000

본 연구는 정보 시스템으로서의 웹(WWW)의 인지심리학적 특성들을 고려하여 웹사이트의 사용성에 관련된 디자인 특성들을 밝히고자 하였다. 구체적으로 다양한 목적의 웹사이트를 선정하고 다양한 비실험적 방법들을 이용하여 그 사이트의 홈페이지 디자인에 관한 사용성 평가를 실시하였다. 이를 위해 연구 1에서는 설문조사법을 통한 웹사이트의 사용성을 조사하였다. 그 결과, 몇 가지 중요한 사용성과 관련된 디자인의 특성들 및 요인들이 추출되었다. 연구 2에서는 연구 1에서 쉽게 발견되지 않은 특정 웹사이트의 세부적 사용성 문제들을 검출하기 위해 발견적 평가를 실시하였다. 연구 2의 결과, 발견적 평가가 연구 1 의 설문조사에 비해 디자인의 세부적인 문제점들을 더 잘 드러내는 것으로 나타났다.

• International Journal of Computer Science & Network Security
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• 제23권9호
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• pp.177-185
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• 2023

The global FinTech industry has experienced significant growth, with key projects developing the financial sector. In Saudi Arabia, startups have used technology to offer FinTech services. In this area, it is important to investigate the usability of platforms that offer FinTech services. This research aims to examine the usability of samples of Saudi FinTech websites and identify design issues impacting user experience. Usability testing was conducted on the websites of two FinTech firms identified design issues, including navigation problems on the homepage and a lack of transparency in displaying investment details, negatively impacting end users. Employing usability methods can assist in enhancing the development of FinTech platforms and addressing these issues. This study contributes to a deeper understanding of FinTech usability problems and the user experience, enabling advancements in the industry.

• 대한인간공학회지
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• 제36권1호
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• pp.37-52
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• 2017

Objective: The present study developed a user-centered 3D virtual liver surgery planning (VLSP) system called Dr. Liver to provide preoperative information for safe and rational surgery. Background: Preoperative 3D VLSP is needed for patients' safety in liver surgery. Existing systems either do not provide functions specialized for liver surgery planning or do not provide functions for cross-check of the accuracy of analysis results. Method: Use scenarios of Dr. Liver were developed through literature review, benchmarking, and interviews with surgeons. User interfaces of Dr. Liver with various user-friendly features (e.g., context-sensitive hotkey menu and 3D view navigation box) was designed. Novel image processing algorithms (e.g., hybrid semi-automatic algorithm for liver extraction and customized region growing algorithm for vessel extraction) were developed for accurate and efficient liver surgery planning. Usability problems of a preliminary version of Dr. Liver were identified by surgeons and system developers and then design changes were made to resolve the identified usability problems. Results: A usability testing showed that the revised version of Dr. Liver achieved a high level of satisfaction ($6.1{\pm}0.8$ out of 7) and an acceptable time efficiency ($26.7{\pm}0.9 min$) in liver surgery planning. Conclusion: Involvement of usability testing in system development process from the beginning is useful to identify potential usability problems to improve for shortening system development period and cost. Application: The development and evaluation process of Dr. Liver in this study can be referred in designing a user-centered system.