• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2003년도 가을학술발표대회
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• pp.52-53
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• 2003

• 산업경영시스템학회지
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• 제19권37호
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• pp.87-94
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• 1996

There is a currently a focus on the usability of interactive computer products. Many usability measurement and evaluation methods have been developed in the fields of human-computer interaction and software ergonomics. In this paper, the issues of usability evaluation methods are introduced, and the usability evaluation methods are classified and compared. Also, the framework for systematic usability effort based on product' lifecycle is presented.

• 산업경영시스템학회지
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• 제17권30호
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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.

• 한국IT서비스학회지
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• 제7권4호
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• pp.179-198
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• 2008

It is widely known that usability is a critical quality attribute of IT systems. Many studies have developed various methods for finding out usability problems. Usability professionals have emphasized that usability should be integrated into the development life cycle in order to maximize the usability of systems with minimal cost. To achieve this, it is essential to classify usability problems systematically and connect them into the activities of designing user interfaces and tasks. However, there is a lack of framework or method for these two problems and thus remains a challengeable research issue. As a beginning study, this paper proposes a conceptual framework for addressing the two issues. We firstly summarize usability-related studies so far, including usability factors and evaluation methods. Secondly, we review seven approaches to identifying and classifying usability problems. Based on this review and opinions of usability engineers in real industry as well as the review results, this paper proposes a framework comprising three viewpoints, from which more sound classification scheme of usability problems can be inductively developed.

• 대한인간공학회지
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• 제24권2호
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• pp.25-33
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• 2005

In order to minimize a biased view of evaluators in usability test, a multiple evaluation method so called Multi-Centered Usability Evaluation Method(MCUEM) was suggested and structured in this study. To use MCUEM, the existing evaluation methods were re-categorized into 'developer and evaluator-centered', 'evaluator-centered', 'user-centered', 'evaluator and user-centered', and the 'developer, evaluator, and user-centered methods. Furthermore, in order to verify the relevance of MCUEM, the usability of mobile phone was tested in this study. In results, it was found that different evaluation methods generated greatly different results, that showed the risk of using a particular usability method due to different perspectives of evaluators. At the same time, it was found that MCUEM could greatly minimize such biases. Therefore, it was concluded that using MCUEM could help the usability engineer design a test protocol with a minimal risk of bias due to different perspective of evaluators.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1996년도 추계학술대회논문집
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• pp.153-159
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• 1996

Usability evaluation can be valuable tool for analyzing and improving computer software. Various usability evaluation methods have been developed in the fields of human-computer interaction and software ergonomics. Although there are several useful methods available, designers or engineers engaged in usability evaluations should really select the most suitable methods for each specific system being evaluated. Even different systems within the same organization may require different evaluation methods to maximize the quality of the data obtained from each evaluation. In this paper, the taxonomy of evaluation methods based on the development life cycle is presented and comparative analysis between methods is performed. In addition, the implications for selecting appropriate usability methods and using them collectively are discussed.

• 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.

• 정보보호학회논문지
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• 제27권4호
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• pp.843-853
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• 2017

"공인인증서 의무 사용" 폐지에 따라 모바일 기반 금융 서비스의 자율성이 높아지면서 다양한 인증 수단이 제공되고 있다. 대표적인 인증 수단으로는 SMS, ARS, PIN, 텍스트 패스워드, 지문 등이 있다. 본 연구에서는 통일된 모바일 환경에서 인증수단의 사용성, 안전성을 분석하였다. 사용성 평가에 있어서 SUS (System Usability Scale), 인터뷰를 통해 평가를 진행하였으며, NIST에서 제시한 전자인증가이드라인을 이용하여 각 인증 수단에 대한 안전성을 평가하였다. 연구 결과 지문 인식 기반 인증 수단이 가장 높은 사용성 등급을 나타내는 Excellent로 평가되었으며, 안전성 분석 결과에서도 지문 인식 기반 인증 수단이 Security Level 4를 획득하여 가장 안전한 인증 수단으로 평가되었다.

• 대한인간공학회지
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• 제19권3호
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• pp.23-37
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• 2000

Usability is one of the most important factors that affect customers' decision to purchase a product. Several studies have been conducted to model the relationship between the product design variables and the product usability. Since there could be hundreds of design variables to be considered in the model, a variable screening method is required. Traditional variable screening methods are based on expert opinions (Expert screening) in most Kansei engineering studies. Suggested in this study are statistical methods for screening important design variables by using the principal component regression(PCR), cluster analysis, and partial least squares(PLS) method. Product variables with high effect (PCR screening and PLS screening) or representative variables (Cluster screening) can be used to model the usability. Proposed variable screening methods are used to model the usability for 36 audio/visual products. The three analysis methods (PCR, Cluster, and PLS) show better model performance than the Expert screening in terms of $R^2$, the number of variables in the model, and PRESS. It is expected that these methods can be used for screening the product design variables efficiently.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2003년도 추계학술대회 논문집
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• pp.1231-1232
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• 2003

This paper reports results of a recent survey of 184 Information Technology(IT) development practitioners and 90 User Interface (UI)/usability practitioners. This survey covered a broad range of issues including the respondents' profile, current development environment, usability and user-centered design (UCD) adoption issues in development, overall assessment of usability/UCD in Korea, and the most widely used methods and techniques. The results of this study are expected to provide an empirical basis for usability and UCD planning, training, adoption and execution in IT industry of Korea.