• Industrial Engineering and Management Systems
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• 제8권1호
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• pp.54-65
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• 2009

The existence of Internet revolutionized the computer and communications world. With the rising demand for accessing the Internet, the mobile technology has incorporated the use of Internet in mobile phones. Wireless Application Protocol (WAP) has combined two of the widest utilized technology today: mobile phones and Internet. This study aims to assess the existing WAP pages offered by the top service providers in the Philippines through usability testing experiments. The paper also aims to identify existing problems in WAP interface by focusing on the errors committed by the users. From the usability study, it was found out that common usability problems are wrong selection of links, unclear grouping of categories, wrong feedback, and redundant links. The type of service provider used is significant in determining the performance of users while experience in accessing WAP is insignificant.

• 산업경영시스템학회지
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• 제24권64호
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• pp.39-52
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• 2001

Usability is playing a more important, role in interactive products or systems (e. g,, information technology Products, computer software) development, and it has become a primary factor in determining the acceptability and consequent success of the products. This study investigates some different techniques and methods to evaluate the usability of the interactive products or system . Various evaluation methods have been tried ranging from formal to informal and empirical techniques. The classification of the usability evaluation methods(UEMs) and comparisons between these evaluation methods are presented. Some issues raised by the UEMs are also discussed. In addition, problems of selecting appropriate usability evaluation methods are discussed.

• 산업경영시스템학회지
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• 제24권62호
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• pp.79-87
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• 2001

Usability has become a primary factor in determining the acceptability and consequent success of consumer product. It is common that the product usability is evaluated by objective performance measures and/or subjective user preference measures. This study is concerned with objective evaluation of the product usability using 3-dimensional motion analysis. We evaluated car-audio position using 3-dimensional motion analysis. The parameters investigated in this experiment were height of car-audio, left-right angle, and front-end angle. The experimental results showed that the usability evaluation method using motion analysis was consistent with user's subjective assessment. This objective method can be applied to not only car-audio position evaluation but also various consumer products'usability evaluation.

• Industrial Engineering and Management Systems
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• 제7권1호
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• pp.66-77
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• 2008

The existence of Internet revolutionized the computer and communications world. With the rising demand for accessing the Internet, the mobile technology has incorporated the use of Internet in mobile phones. Wireless Application Protocol (WAP) has combined two of the widest utilized technology today: mobile phones and Internet. This study aims to assess the existing WAP pages offered by the top service providers in the Philippines through usability testing experiments. The paper also aims to identify existing problems in WAP interface by focusing on the errors committed by the users. From the usability study, it was found out that common usability problems are wrong selection of links, unclear grouping of categories, wrong feedback, and redundant links. The type of service provider used is significant in determining the performance of users while experience in accessing WAP is insignificant.

• 한국멀티미디어학회논문지
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• 제21권11호
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• pp.1263-1270
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• 2018

Dynamic adaptation method is an effective technique to enhance the usability by personalizing the soft keyboard layout using the user's key input information. In this paper, we propose a dynamic adaptation method of a keyboard by automatically extracting typos from key input information and using adjacent-typo information classified through the relationship between typos. This technique does not limit a range of adaptation to the inside of the key but extends the range to the neighbor key so that the adaptation effect can be achieved in a wide range at a high speed, thereby the proposed method improves the usability of the keyboard with a small number of inputs. The proposed method showed 25% increase in usability compared to the existing method through experiment and it was confirmed that usability improves up to 33% when used with the existing method.

• Educational Technology International
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• 제14권1호
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• pp.109-136
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• 2013

We conducted an empirical study with 8 middle school students in Korea to investigate the usability and usefulness of our self-designed Digital Textbook. The Stimulated Recall (SR) Method using Morae software was utilized to analyze the learners' task behaviors and mental operations while using the Digital Textbook to learn English. Collected qualitative data indicated several problems in terms of the usability and usefulness of the Digital Textbook. The findings are summarized and some implications are discussed for further revision of the Digital Textbook and validation of the SR method as a usability-usefulness test tool.

• 정보관리학회지
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• 제29권3호
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• pp.123-144
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• 2012

이 연구는 대학 강의지원시스템을 이용하는 학습자의 이용성을 향상시키기 위해 필요한 이용자 인터페이스 설계 원칙을 개발하는데 목적이 있다. 이를 위하여 문헌조사를 바탕으로 사전설문과 이용성 평가 실험으로 구성된 이용성 조사를 실시하였다. 이용성 조사로부터 얻어낸 결과를 종합하여 총 11개의 대학 강의지원시스템 이용자 인터페이스 설계 원칙을 개발하였다. 본 연구는 대학 강의지원시스템의 이용자 인터페이스 설계 원칙을 개발하기 위하여 주이용자인 학습자를 대상으로 이용성 조사를 실시하여 실제 이용자의 의견을 시스템의 기능별로 제시하고 직접적으로 설계 원칙에 반영할 수 있었다는 점에서 의의가 있다.

• 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.

• 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.

• 한국정보통신학회논문지
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• 제15권12호
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• pp.2679-2686
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• 2011

음성자동응답시스템(ARS)은 광범위하게 사용되는 대표적인 커뮤니케이션 시스템임에도 불구하고, 사용하기가 불편하다는 의견이 지배적인 시스템이다. 이러한 아이러니는 ARS 기술 자체에 대한 문제보다는 사용성에 대한 연구가 요구됨을 보여준다. 아직 국내외적으로 ARS 사용성에 대한 연구와 그 결과들이 빈약한 상황에서, 본 연구에서는 ARS 사용성 연구를 효율적으로 수행하기 위한 ARS 시뮬레이터를 소개한다. ARS 시뮬레이터는 ARS 사용성 연구자들을 위한 시스템으로, ARS 모의 태스크 설계와 사용자의 수행을 돕는 환경을 제공하며, 사용자들의 모의 태스크 과정 저장 및 간단한 사용자 행동 분석을 제공한다.